HYNIX H5MS1G32MFP-L3M

1Gbit MOBILE DDR SDRAM based on 8M x 4Bank x32 I/O
Specification of
1Gb (32Mx32bit) Mobile DDR SDRAM
Memory Cell Array
- Organized as 4banks of 8,388,608 x32
This document is a general product description and is subject to change without notice. Hynix does not assume any responsibility for
use of circuits described. No patent licenses are implied.
Rev 1.2 / Jun. 2008
1
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
Document Title
1GBit (4Bank x 8M x 32bit) MOBILE DDR SDRAM
Revision History
Revision No.
History
Draft Date
Remark
0.1
- Initial Draft
Sep. 2007
Preliminary
0.2
- Defined IDD6 current spec.
Dec. 2007
Preliminary
0.3
- Insert IDD8 Spec. value (see page23)
Dec. 2007
Preliminary
0.4
- Modify : IDD5 : 100mA --> 120mA
IDD6 (@45oC, Full Bank) : 450uA --> 500uA
Jan. 2008
Preliminary
1.0
- Final Version
Mar. 2008
1.1
- Modify : IDD6 (@45oC, Full Bank) : 500uA --> 450uA
IDD6 (@85oC, One Bank) : 550uA --> 500uA
May. 2008
1.2
- Insert DDR400 DC/AC Characteristics
Jun. 2008
Rev 1.2 / Jun. 2008
2
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
FEATURES SUMMARY
● Mobile DDR SDRAM
- Double data rate architecture: two data transfer per
clock cycle
● MODE RERISTER SET, EXTENDED MODE REGISTER SET and STATUS REGISTER READ
- Keep to the JEDEC Standard regulation
(Low Power DDR SDRAM)
● Mobile DDR SDRAM INTERFACE
- x32 bus width
- Multiplexed Address (Row address and Column ad-
● CAS LATENCY
- Programmable CAS latency 2 or 3 supported
dress)
● BURST LENGTH
● SUPPLY VOLTAGE
- 1.8V device: VDD and VDDQ = 1.7V to 1.95V
● MEMORY CELL ARRAY
- 1Gbit (x32 device) = 8M x 4Bank x 32 I/O
● DATA STROBE
- Programmable burst length 2 / 4 / 8 with both sequential and interleave mode
● AUTO PRECHARGE
- Option for each burst access
● AUTO REFRESH AND SELF REFRESH MODE
- x32 device: DQS0 ~ DQS3
- Bidirectional, data strobe (DQS) is transmitted and received with data, to be used in capturing data at the
receiver
- Data and data mask referenced to both edges of DQS
● LOW POWER FEATURES
- PASR (Partial Array Self Refresh)
- AUTO TCSR (Temperature Compensated Self Refresh)
● CLOCK STOP MODE
- Clock stop mode is a feature supported by Mobile DDR
SDRAM.
- Keep to the JEDEC Standard regulation
● INITIALIZING THE MOBILE DDR SDRAM
- Occurring at device power up or interruption of device
power
- DS (Drive Strength)
- DPD (Deep Power Down): DPD is an optional feature,
so please contact Hynix office for the DPD feature
● Operation Temperature
- -30oC ~ 85oC
● PACKAGE
● INPUT CLOCK
- 90 Ball Lead Free FBGA
- Differential clock inputs (CK, CK)
● ADDRESS TABLE
● Data MASK
- DM0 ~ DM3: Input mask signals for write data
- DM masks write data-in at the both rising and
Part Number
Page Size
Row
Address
Column
Address
H5MS1G22MFP
4KByte
A0 ~ A12
A0 ~ A9
H5MS1G32MFP1)
2KByte
A0 ~ A13
A0 ~ A8
falling edges of the data strobe
Note)Reduced Page size:16,384 rows by 512 columns by 32 bits.
Rev 1.2 / Jun. 2008
3
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
DESCRIPTION
The Hynix H5MS1G(2/3)2MFP Series is 1,073,741,824-bit CMOS Low Power Double Data Rate Synchronous DRAM
(Mobile DDR SDRAM), ideally suited for mobile applications which use the battery such as PDAs, 2.5G and 3G cellular
phones with internet access and multimedia capabilities, mini-notebook, hand-held PCs. It is organized as 4banks of
8,388,608 x32.
The HYNIX H5MS1G(2/3)2MFP series uses a double-data-rate architecture to achieve high-speed operation. The double data rate architecture is essentially a 2n prefetch architecture with an interface designed to transfer two data per
clock cycle at the I/O pins.
The Hynix H5MS1G(2/3)2MFP Series offers fully synchronous operations referenced to both rising and falling edges of
the clock. While all address and control inputs are latched on the rising edges of the CK (Mobile DDR SDRAM operates
from a differential clock: the crossing of CK going HIGH and CK going LOW is referred to as the positive edge of CK),
data, data strobe and data mask inputs are sampled on both rising and falling edges of it (Input data is registered on
both edges of DQS, and output data is referenced to both edges of DQS, as well as to both edges of CK). The data
paths are internally pipelined and 2-bit prefetched to achieve high bandwidth. All input voltage levels are compatible
with LVCMOS.
Read and write accesses to the Low Power DDR SDRAM (Mobile DDR SDRAM) are burst oriented; accesses start at a
selected location and continue for a programmed number of locations in a programmed sequence. Accesses begin with
the registration of an ACTIVE command, which is then followed by a READ or WRITE command. The address bits registered coincident with the ACTIVE command are used to select the bank and the row to be accessed. The address bits
registered coincident with the READ or WRITE command are used to select the bank and the starting column location
for the burst access.
The Low Power DDR SDRAM (Mobile DDR SDRAM) provides for programmable read or write bursts of 2, 4 or 8 locations. An AUTO PRECHARGE function may be enabled to provide a self-timed row precharge that is initiated at the end
of the burst access.
As with standard SDRAM, the pipelined and multibank architecture of Low Power DDR SDRAM (Mobile DDR SDRAM)
allows for concurrent operation, thereby providing high effective bandwidth by hiding row precharge and activation
times.
The Low Power DDR SDRAM (Mobile DDR SDRAM) also provides for special programmable Self Refresh options which
are Partial Array Self Refresh (full, half, quarter and 1/8 and 1/16 array) and Temperature Compensated Self Refresh.
A burst of Read or Write cycles in progress can be interrupted and replaced by a new burst Read or Write command on
any cycle (this pipelined design is not restricted by a 2N rule). Only Read bursts in progress with auto precharge disabled can be terminated by a burst terminate command. Burst Terminate command is undefined and should not be
used for Read with Autoprecharge enabled and for Write bursts.
Rev 1.2 / Jun. 2008
4
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
The Hynix H5MS1G(2/3)2MFP series has the special Low Power function of Auto TCSR (Temperature Compensated
Self Refresh) to reduce self refresh current consumption. Since an internal temperature sensor is implemented, it enables to automatically adjust refresh rate according to temperature without external EMRS command.
Deep Power Down Mode is an additional operating mode for Low Power DDR SDRAM (Mobile DDR SDRAM). This mode
can achieve maximum power reduction by removing power to the memory array within Low Power DDR SDRAM
(Mobile DDR SDRAM). By using this feature, the system can cut off almost all DRAM power without adding the cost of
a power switch and giving up mother-board power-line layout flexibility.
All inputs are LVCMOS compatible. Devices will have a VDD and VDDQ supply of 1.8V (nominal).
The Hynix H5MS1G(2/3)2MFP series is available in the following package:
- 90 Ball FBGA [ size : 8mm x 13mm, t=1.0mm max ]
Rev 1.2 / Jun. 2008
5
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
1Gb Mobile DDR SDRAM ORDERING INFORMATION
Part Number
Clock Frequency
H5MS1G22MFP-E3M1)
200MHz(CL3) / 83MHz(CL2)
H5MS1G22MFP-J3M1)
166MHz(CL3) / 83MHz(CL2)
H5MS1G22MFP-K3M1)
133MHz(CL3) / 83MHz(CL2)
H5MS1G22MFP-L3M1)
100MHz(CL3) / 66MHz(CL2)
H5MS1G32MFP-E3M2)
200MHz(CL3) / 83MHz(CL2)
H5MS1G32MFP-J3M2)
166MHz(CL3) / 83MHz(CL2)
H5MS1G32MFP-K3M2)
133MHz(CL3) / 83MHz(CL2)
H5MS1G32MFP-L3M2)
100MHz(CL3) / 66MHz(CL2)
Page Size Organization
Interface
Package
LVCMOS
90 Ball FBGA
Lead Free
4KByte
(Normal)
4banks x 8Mb
x 32
2KByte
(Reduced)
NOTE
1) H5MS1G22MFP : 268,435,456-bit banks is organized as 8,192 rows by 1,024 columns by 32 bits.
2) H5MS1G32MFP : 268,435,456-bit banks is organized as 16,384 rows by 512 columns by 32 bits. - Reduced Page size
Rev 1.2 / Jun. 2008
6
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
INFORMATION for Hynix KNOWN GOOD DIE
With the advent of Multi-Chip package (MCP), Package on Package (PoP) and System in a Package (SiP) applications,
customer demand for Known Good Die (KGD) has increased.
Requirements for smaller form factors and higher memory densities are fueling the need for Wafer-level memory solutions due to their superior flexibility. Hynix Known Good Die (KGD) products can be used in packaging technologies
such as systems-in-a-package (SIP) and multi-chip package (MCP) to reduce the board area required, making them
ideal for hand-held PCs, and many other portable digital applications.
Hynix Mobile SDRAM will be able to continue its constant effort of enabling the advanced package products of all application customers.
- Please Contact Hynix Office for Hynix KGD product availability and informations.
Rev 1.2 / Jun. 2008
7
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
90Ball FBGA ASSIGNMENT
1
A
VSS
2
3
4
5
6
DQ31 VSSQ
7
8
VDDQ DQ16
9
VDD
B
VDDQ DQ29 DQ30
DQ17 DQ18 VSSQ
C
VSSQ DQ27 DQ28
DQ19 DQ20 VDDQ
D
VDDQ DQ25 DQ26
DQ21 DQ22 VSSQ
E
VSSQ DQS3 DQ24
DQ23 DQS2 VDDQ
F
VDD
DM3
NC
A13
DM2
VSS
G
CKE
CK
/CK
/WE
/CAS
/RAS
H
A9
A11
A12
/CS
BA0
BA1
J
A6
A7
A8
A10
A0
A1
K
A4
DM1
A5
A2
DM0
A3
DQ8
DQ7
Top view
L
VSSQ DQS1
M
VDDQ
DQ10
DQ5
DQ6
VSSQ
N
VSSQ DQ11 DQ12
DQ3
DQ4
VDDQ
P
VDDQ DQ13 DQ14
DQ1
DQ2
VSSQ
VDDQ
DQ0
VDD
R
Rev 1.2 / Jun. 2008
VSS
DQ9
DQ15 VSSQ
DQS0 VDDQ
8
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
Mobile DDR SDRAM PIN DESCRIPTIONS
SYMBOL
TYPE
DESCRIPTION
CK, CK
INPUT
Clock: CK and CK are differential clock inputs. All address and control input signals are
sampled on the crossing of the positive edge of CK and negative edge of CK. Output (read)
data is referenced to the crossings of CK and CK (both directions of crossing).
INPUT
Clock Enable: CKE HIGH activates, and CKE LOW deactivates internal clock signals, device
input buffers and output drivers. Taking CKE LOW provides PRECHARGE POWER-DOWN
and SELF REFRESH operation (all banks idle), or ACTIVE POWER-DOWN (row ACTIVE in
any bank). CKE is synchronous for all functions except for SELF REFRESH EXIT, which is
achieved asynchronously.
CS
INPUT
Chip Select: CS enables (registered LOW) and disables (registered HIGH) the command
decoder. All commands are masked when CS is registered HIGH. CS provides for external
bank selection on systems with multiple banks. CS is considered part of the command
code.
RAS, CAS, WE
INPUT
Command Inputs: RAS, CAS and WE (along with CS) define the command being entered
BA0, BA1
INPUT
Bank Address Inputs: BA0 and BA1 define to which bank an ACTIVE, READ, WRITE or
PRECHARGE command is being applied. BA0 and BA1 also determine which mode register
is to be loaded during a MODE REGISTER SET command (MRS, EMRS or SRR).
A0 ~ A13
INPUT
Address inputs: Provide the row address for ACTIVE commands, and the column address
and AUTO PRECHARGE bit for READ/WRITE commands, to select one location out of the
memory array in the respective bank. The address inputs also provide the op-code during
a MODE REGISTER SET command. A10 sampled during a PRECHARGE command determines whether the PRECHARGE applies to one bank (A10 LOW) or all banks (A10 HIGH).
If only one bank is to be precharged, the bank is selected by BA0, BA1.
For 1Gb (x32), Row Address: A0 ~ A12 and Column Address: A0 ~ A9 with 4KByte page
size. Row Addres A0 ~ A13 Colum Address: A0 ~ A8 with 2KByte page size.
Auto-precharge flag: A10
DQ0 ~ DQ31
I/O
CKE
Data Bus: data input / output pin
INPUT
Input Data Mask: DM is an input mask signal for write data. Input data is masked when
DM is sampled. HIGH along with that input data during a WRITE access. DM is sampled
on both edges of DQS. Data Mask pins include dummy loading internally, to match the DQ
and DQS loading.
For x32 devices, DM0 corresponds to the data on DQ0-DQ7, DM1 corresponds to the data
on DQ8-DQ15, DM2 corresponds to the data on DQ16-DQ23, and DM3 corresponds to the
data on DQ24-DQ31.
DQS0 ~ DQS3
I/O
Data Strobe: Output with read data, input with write data. Edge-aligned with read data,
center-aligned with write data. Used to capture write data. For x32 device, DQS0 corresponds to the data on DQ0-DQ7, DQS1 corresponds to the data on DQ8-DQ15, DQS2 corresponds to the data on DQ16-DQ23, and DQS3 corresponds to the data on DQ24-DQ31.
VDD
SUPPLY
Power supply
VSS
SUPPLY
Ground
VDDQ
SUPPLY
I/O Power supply
VSSQ
SUPPLY
I/O Ground
NC
-
DM0 ~ DM3
Rev 1.2 / Jun. 2008
No Connect: No internal electrical connection is present.
9
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
FUNCTIONAL BLOCK DIAGRAM
8Mbit x 4banks x 32 I/O Mobile DDR SDRAM
Self refresh
logic & timer
Write Data Register
2-bit Prefetch Unit
64
Internal Row
Counter
8Mx32 Bank3
/CLK
Row Active
CKE
8Mx32 Bank0
Column
Pre
Decoder
/WE
DM0
~DM3
A0
32
Column Add
Counter
Address
Register
DQ31
DQS0
~
DQS3
Burst
Counter
Burst
Length
BA1
Address Buffers
A13
DQ0
Column decoders
Bank Select
A1
64
Output Buffer & Logic
Column Active
Memory
Cell
Array
Sense AMP & I/O Gate
/CAS
Row decoders
Refresh
8Mx32 Bank1
Row decoders
State Machine
/RAS
DS
8Mx32 Bank2
Row decoders
Row
Pre
Decoder
Row decoders
CLK
/CS
32
Input Buffer & Logic
PASR
Extended
Mode
Register
Mode Register
Data Strobe
Transmitter
DS
CAS
Latency
Data Strobe
Receiver
Data Out Control
BA0
Rev 1.2 / Jun. 2008
10
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
REGISTER DEFINITION I
Mode Register Set (MRS) for Mobile DDR SDRAM
BA1
BA0
A13
A12
A11
A10
A9
A8
A7
0
0
0
0
0
0
0
0
0
A6
A5
A4
CAS Latency
A3
A2
BT
A1
A0
Burst Length
Burst Type
CAS Latency
A3
Burst Type
0
Sequential
1
Interleave
Burst Length
A6
A5
A4
CAS Latency
0
0
0
Reserved
0
0
1
0
1
0
0
1
1
0
A2
A1
A0
Reserved
0
0
2
0
1
3
0
Reserved
Burst Length
A3 = 0
A3=1
0
Reserved
Reserved
0
1
2
2
0
1
0
4
4
0
1
1
8
8
1
0
1
Reserved
1
0
0
Reserved
Reserved
1
1
0
Reserved
1
0
1
Reserved
Reserved
1
1
1
Reserved
1
1
0
Reserved
Reserved
1
1
1
Reserved
Reserved
Rev 1.2 / Jun. 2008
11
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
REGISTER DEFINITION II
Extended Mode Register Set (EMRS) for Mobile DDR SDRAM
BA1
BA0
A13
A12
A11
A10
A9
A8
A7
1
0
0
0
0
0
0
0
0
A6
A5
DS
A4
A3
0
0
A2
A1
A0
PASR
DS (Drive Strength)
Drive
Strength
A6
A5
0
0
Full
0
1
Half (Default)
1
0
Quarter
1
1
Octant
PASR (Partial Array Self Refresh)
Rev 1.2 / Jun. 2008
A2
A1
A0
Self Refresh Coverage
0
0
0
All Banks (Default)
0
0
1
Half of Total Bank (BA1=0)
0
1
0
Quarter of Total Bank (BA1=BA0=0)
0
1
1
Reserved
1
0
0
Reserved
1
0
1
One Eighth of Total Bank
(BA1 = BA0 = Row Address MSB=0)
1
1
0
One Sixteenth of Total Bank
(BA1 = BA0 = Row Address 2 MSBs=0)
1
1
1
Reserved
12
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
REGISTER DEFINITION III
Status Register (SR) for Mobile DDR SDRAM
BA1
BA0
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
DQ8
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
DQ15 DQ14 DQ13 DQ12 DQ11 DQ10 DQ9
Density
0
1
1
-
DW
0
1
Refresh Rate
X
X
Revision Identification
X1)
X
X1)
X1)
Manufacturers Identification
X1)
0
1
1
0
Refresh Rate
DW (Device Width)
DQ11 Device Width
DQ10 DQ9
DQ8 Refresh Rate
0
0
x
42)
0
1
0
4
2
0
16 bits
0
1
1
1
32 bits
1
0
0
1
1
0
1
0.5
1
1
0
0.25
1
1
1
0.253)
Density
DQ15 DQ14 DQ13 Density
0
0
0
128
0
0
1
256
0
1
0
512
0
1
1
1024
1
0
0
Reserved
1
0
1
Reserved
1
1
0
Reserved
1
1
1
Reserved
Manufacturers Identification
DQ3
DQ2
DQ1
DQ0
Manufacturer
0
1
1
0
Hynix
x
x
x
x
Reserved or
other companies
Note)
1. The revision number starts at ‘0000’ and increments by ‘0001’ each time a change in the manufacturer’s specification, IBIS, or
process occurs.
2. Low temperature out of range.
3. High temperature out of range - no refresh rate can guarantee functionality.
4. The refresh rate multiplier is based on the memory’s temperature sensor.
5. Required average periodic refresh interval = tREFI * multiplier.
6. Status Register is only for Read.
7. To read out Status Register values, BA[1:0] set to 01b and A[13:0] set to all 0 with MRS command followed by Read command
with that BA[1:0] and A[13:0] are Don’t care. If the page size is 4KByte, A[12:0] are provided.
Rev 1.2 / Jun. 2008
13
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
COMMAND TRUTH TABLE
Function
CS
RAS
CAS
WE
BA
A10/AP ADDR Note
DESELECT (NOP)
H
X
X
X
X
X
X
2
NO OPERATION (NOP)
L
H
H
H
X
X
X
2
ACTIVE (Select Bank and activate Row)
L
L
H
H
V
Row
Row
READ (Select bank and column and start read burst)
L
H
L
H
V
L
Col
READ with AP (Read Burst with Autoprecharge)
L
H
L
H
V
H
Col
WRITE (Select bank and column and start write
burst)
L
H
L
L
V
L
Col
3
WRITE with AP (Write Burst with Autoprecharge)
L
H
L
L
V
H
Col
3
BURST TERMINATE or enter DEEP POWER DOWN
L
H
H
L
X
X
X
4, 5
PRECHARGE (Deactivate Row in selected bank)
L
L
H
L
V
L
X
6
PRECHARGE ALL (Deactivate rows in all Banks)
L
L
H
L
X
H
X
6
AUTO REFRESH or enter SELF REFRESH
L
L
L
H
X
X
X
7,8,9
MODE REGISTER SET
L
L
L
L
V
Op code
10
DM TRUTH TABLE
Function
DM
DQ
Note
Write Enable
L
Valid
11
Write Inhibit
H
X
11
Note:
1. All states and sequences not shown are illegal or reserved.
2. DESLECT and NOP are functionally interchangeable.
3. Autoprecharge is non-persistent. A10 High enables Autoprecharge, while A10 Low disables Autoprecharge
4. Burst Terminate applies to only Read bursts with auto precharge disabled. This command is undefined and should not be used for
Read with Autoprecharge enabled, and for Write bursts.
5. This command is BURST TERMINATE if CKE is High and DEEP POWER DOWN entry if CKE is Low.
6. If A10 is low, bank address determines which bank is to be precharged. If A10 is high, all banks are precharged and BA0-BA1 are
don't care.
7. This command is AUTO REFRESH if CKE is High, and SELF REFRESH if CKE is low.
8. All address inputs and I/O are ''don't care'' except for CKE. Internal refresh counters control Bank and Row addressing.
9. All banks must be precharged before issuing an AUTO-REFRESH or SELF REFRESH command.
10. BA0 and BA1 value select among MRS, EMRS and SRR.
11. Used to mask write data, provided coincident with the corresponding data.
12. CKE is HIGH for all commands shown except SELF REFRESH and DEEP POWER-DOWN.
Rev 1.2 / Jun. 2008
14
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
CKE TRUTH TABLE
CKEn-1
CKEn
Current State
COMMANDn
ACTIONn
Note
L
L
Power Down
X
Maintain Power Down
L
L
Self Refresh
X
Maintain Self Refresh
L
L
Deep Power Down
X
Maintain Deep Power
Down
L
H
Power Down
NOP or DESELECT
Exit Power Down
5,6,9
L
H
Self Refresh
NOP or DESELECT
Exit Self Refresh
5,7,10
L
H
Deep Power Down
NOP or DESELECT
Exit Deep Power Down
5,8
H
L
All Banks Idle
NOP or DESELECT
Precharge Power
Down Entry
5
H
L
Bank(s) Active
NOP or DESELECT
Active Power Down
Entry
5
H
L
All Banks Idle
AUTO REFRESH
Self Refresh entry
H
L
All Banks Idle
BURST TERMINATE
Enter Deep Power
Down
H
H
See the other Truth Tables
Note:
1. CKEn is the logic state of CKE at clock edge n; CKEn-1 was the state of CKE at the previous clock edge.
2. Current state is the state of LP DDR immediately prior to clock edge n.
3. COMMANDn is the command registered at clock edge n, and ACTIONn is the result of COMMANDn.
4. All states and sequences not shown are illegal or reserved.
5. DESELECT and NOP are functionally interchangeable.
6. Power Down exit time (tXP) should elapse before a command other than NOP or DESELECT is issued.
7. SELF REFRESH exit time (tXSR) should elapse before a command other than NOP or DESELECT is issued.
8. The Deep Power-Down exit procedure must be followed as discussed in the Deep Power-Down section of the Functional Description.
9. The clock must toggle at least one time during the tXP period.
10. The clock must toggle at least once during the tXSR time.
Rev 1.2 / Jun. 2008
15
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
CURRENT STATE BANKn TRUTH TABLE (COMMAND TO BANK n)
Command
Current State
Action
Notes
CS
RAS
CAS
WE
Description
H
X
X
X
DESELECT (NOP)
Continue previous Operation
L
H
H
H
NOP
Continue previous Operation
L
L
H
H
ACTIVE
Select and activate row
L
L
L
H
AUTO REFRESH
Auto refresh
10
L
L
L
L
MODE REGISTER SET
Mode register set
10
L
L
H
H
PRECHARGE
No action if bank is idle
L
H
L
H
READ
Select Column & start read burst
L
H
L
L
WRITE
Select Column & start write burst
L
L
H
L
PRECHARGE
Deactivate Row in bank (or banks)
L
H
L
H
READ
Truncate Read &
start new Read burst
5,6
L
H
L
L
WRITE
Truncate Read &
start new Write burst
5,6,13
L
L
H
L
PRECHARGE
Truncate Read, start Precharge
L
H
H
L
BURST TERMINATE
Burst terminate
L
H
L
H
READ
Truncate Write &
start new Read burst
5,6,12
L
H
L
L
WRITE
Truncate Write &
start new Write burst
5,6
L
L
H
L
PRECHARGE
Truncate Write, start Precharge
12
Any
Idle
Row Active
Read
(without Auto
recharge)
Write
(without Auto
precharge)
4
11
Note:
1. The table applies when both CKEn-1 and CKEn are HIGH, and after tXSR or tXP has been met if the previous state was Self Refresh
or Power Down.
2. DESELECT and NOP are functionally interchangeable.
3. All states and sequences not shown are illegal or reserved.
4. This command may or may not be bank specific. If all banks are being precharged, they must be in a valid state for precharging.
5. A command other than NOP should not be issued to the same bank while a READ or WRITE Burst with auto precharge is enabled.
6. The new Read or Write command could be auto precharge enabled or auto precharge disabled.
Rev 1.2 / Jun. 2008
16
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
7. Current State Definitions:
Idle: The bank has been precharged, and tRP has been met.
Row Active: A row in the bank has been activated, and tRCD has been met.
No data bursts/accesses and no register accesses are in progress.
Read: A READ burst has been initiated, with AUTO PRECHARGE disabled, and has not yet terminated or been terminated.
Write: a WRITE burst has been initiated, with AUTO PRECHARGE disabled, and has not yet terminated or been terminated.
8. The following states must not be interrupted by a command issued to the same bank.
DESELECT or NOP commands or allowable commands to the other bank should be issued on any clock edge occurring
during these states. Allowable commands to the other bank are determined by its current state and Truth Table3,
and according to Truth Table 4.
Precharging: Starts with the registration of a PRECHARGE command and ends when tRP is met.
Once tRP is met, the bank will be in the idle state.
Row Activating: Starts with registration of an ACTIVE command and ends when tRCD is met.
Once tRCD is met, the bank will be in the ''row active'' state.
Read with AP Enabled: Starts with the registration of the READ command with AUTO PRECHARGE enabled and ends
when tRP has been met. Once tRP has been met, the bank will be in the idle state.
Write with AP Enabled: Starts with registration of a WRITE command with AUTO PRECHARGE enabled and ends
when tRP has been met. Once tRP is met, the bank will be in the idle state.
9. The following states must not be interrupted by any executable command; DESELECT or NOP commands must be applied
to each positive clock edge during these states.
Refreshing: Starts with registration of an AUTO REFRESH command and ends when tRFC is met.
Once tRFC is met, the LP DDR will be in an ''all banks idle'' state.
Accessing Mode Register: Starts with registration of a MODE REGISTER SET command and ends when tMRD has been met.
Once tMRD is met, the LP DDR will be in an ''all banks idle'' state.
Precharging All: Starts with the registration of a PRECHARGE ALL command and ends when tRP is met.
Once tRP is met, the bank will be in the idle state.
10. Not bank-specific; requires that all banks are idle and no bursts are in progress.
11. Not bank-specific. BURST TERMINATE affects the most recent READ burst, regardless of bank.
12. Requires appropriate DM masking.
13. A WRITE command may be applied after the completion of the READ burst; otherwise, a Burst terminate must be used to end
the READ prior to asserting a WRITE command.
Rev 1.2 / Jun. 2008
17
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
CURRENT STATE BANKn TRUTH TABLE (COMMAND TO BANK m)
Command
Current State
Action
Notes
CS
RAS
CAS
WE
Description
H
X
X
X
DESELECT (NOP)
Continue previous Operation
L
H
H
H
NOP
Continue previous Operation
X
X
X
X
ANY
Any command allowed to bank m
L
L
H
H
ACTIVE
Activate Row
L
H
L
H
READ
Start READ burst
8
L
H
L
L
WRITE
Start WRITE burst
8
L
L
H
L
PRECHARGE
Precharge
L
L
H
H
ACTIVE
Activate Row
L
H
L
H
READ
Start READ burst
8
L
H
L
L
WRITE
Start WRITE burst
8,10
L
L
H
L
PRECHARGE
Precharge
L
L
H
H
ACTIVE
Activate Row
L
H
L
H
READ
Start READ burst
8,9
L
H
L
L
WRITE
Start WRITE burst
8
L
L
H
L
PRECHARGE
Precharge
L
L
H
H
ACTIVE
Activate Row
L
H
L
H
READ
Start READ burst
5,8
L
H
L
L
WRITE
Start WRITE burst
5,8,10
L
L
H
L
PRECHARGE
Precharge
L
L
H
H
ACTIVE
Activate Row
L
H
L
H
READ
Start READ burst
5,8
L
H
L
L
WRITE
Start WRITE burst
5,8
L
L
H
L
PRECHARGE
Precharge
Any
Idle
Row Activating,
Active, or Precharging
Read with Auto
Precharge disabled
Write with Auto
precharge disabled
Read with Auto
Precharge
Write with Auto
precharge
Rev 1.2 / Jun. 2008
18
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
Note:
1. The table applies when both CKEn-1 and CKEn are HIGH, and after tXSR or tXP has been met if the previous state was
Self Refresh or Power Down.
2. DESELECT and NOP are functionally interchangeable.
3. All states and sequences not shown are illegal or reserved.
4. Current State Definitions:
Idle: The bank has been precharged, and tRP has been met.
Row Active: A row in the bank has been activated, and tRCD has been met. No data bursts/accesses and
no register accesses are in progress.
Read: A READ burst has been initiated, with AUTO PRECHARGE disabled, and has not yet terminated or been terminated.
Write: a WRITE burst has been initiated, with AUTO PRECHARGE disabled, and has not yet terminated or been terminated.
5. Read with AP enabled and Write with AP enabled: The read with Autoprecharge enabled or Write with Autoprecharge
enabled states can be broken into two parts: the access period and the precharge period. For Read with AP, the
precharge period is defined as if the same burst was executed with Auto Precharge disabled and then followed with the
earliest possible PRECHARGE command that still accesses all the data in the burst. For Write with Auto precharge, the
precharge period begins when tWR ends, with tWR measured as if Auto Precharge was disabled. The access period starts
with registration of the command and ends where the precharge period (or tRP) begins. During the precharge period,
of the Read with Autoprecharge enabled or Write with Autoprecharge enabled states, ACTIVE, PRECHARGE, READ, and
WRITE commands to the other bank may be applied; during the access period, only ACTIVE and PRECHARGE commands
to the other banks may be applied. In either case, all other related limitations apply (e.g. contention between READ data
and WRITE data must be avoided).
6. AUTO REFRESH, SELF REFRESH, and MODE REGISTER SET commands may only be issued when all bank are idle.
7. A BURST TERMINATE command cannot be issued to another bank;
it applies to the bank represented by the current state only.
8. READs or WRITEs listed in the Command column include READs and WRITEs with AUTO PRECHARGE enabled and
READs and WRITEs with AUTO PRECHARGE disabled.
9. Requires appropriate DM masking.
10. A WRITE command may be applied after the completion of data output, otherwise a BURST TERMINATE command
must be issued to end the READ prior to asserting a WRITE command.
Rev 1.2 / Jun. 2008
19
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
ABSOLUTE MAXIMUM RATING
Parameter
Symbol
Rating
TC
-30 ~ 85
o
TSTG
-55 ~ 150
o
VIN, VOUT
VDD
VDDQ
IOS
PD
-0.3 ~ VDDQ+0.3
-0.3 ~ 2.7
-0.3 ~ 2.7
50
0.7
Operating Case Temperature
Storage Temperature
Voltage on Any Pin relative to VSS
Voltage on VDD relative to VSS
Voltage on VDDQ relative to VSS
Short Circuit Output Current
Power Dissipation
Unit
C
C
V
V
V
mA
W
AC and DC OPERATING CONDITIONS
OPERATING CONDITION
Parameter
Supply Voltage
I/O Supply Voltage
Operating Case Temperature
Symbol
VDD
VDDQ
TC
Min
1.7
1.7
-30
Symbol
VIN
VID(DC)
VID(AC)
VIX
Min
-0.3
0.4*VDDQ
0.6*VDDQ
0.4*VDDQ
Typ
1.8
1.8
Max
1.95
1.95
85
Unit
V
V
oC
Note
1
1
Max
VDDQ+0.3
VDDQ+0.6
VDDQ+0.6
0.6*VDDQ
Unit
V
V
V
V
Note
CLOCK INPUTS (CK, CK)
Parameter
DC Input Voltage
DC Input Differential Voltage
AC Input Differential Voltage
AC Differential Crosspoint Voltage
2
2
3
Address And Command Inputs (A0~An, BA0, BA1, CKE, CS, RAS, CAS, WE)
Parameter
Input High Voltage
Input Low Voltage
Symbol
VIH
VIL
Min
0.8*VDDQ
-0.3
Max
VDDQ+0.3
0.2*VDDQ
Unit
V
V
Note
Symbol
VIHD(DC)
VILD(DC)
VIHD(AC)
VILD(AC)
Min
0.7*VDDQ
-0.3
0.8*VDDQ
-0.3
Max
VDDQ+0.3
0.3*VDDQ
VDDQ+0.3
0.2*VDDQ
Unit
V
V
V
V
Note
Symbol
VOH
VOL
Min
0.9*VDDQ
-
Max
0.1*VDDQ
Unit
V
V
Note
Data Inputs (DQ, DM, DQS)
Parameter
DC Input High Voltage
DC Input Low Voltage
AC Input High Voltage
AC Input Low Voltage
Data Outputs (DQ, DQS)
Parameter
DC Output High Voltage (IOH = -0.1mA)
DC Output Low Voltage (IOL = 0.1mA)
Rev 1.2 / Jun. 2008
20
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
Leakage Current
Parameter
Input Leakage Current
Output Leakage Current
Symbol
Min
Max
Unit
Note
ILI
ILO
-1
-1.5
1
1.5
uA
uA
4
5
Note:
1. All voltages are referenced to VSS = 0V and VSSQ must be same potential and VDDQ must not exceed the level of VDD.
2. VID(DC) and VID(AC) are the magnitude of the difference between the input level on CK and the input level on CK.
3. The value of VIX is expected to be 0.5*VDDQ and must track variations in the DC level of the same.
4. VIN = 0 to 1.8V. All other pins are not tested under VIN=0V.
5. DOUT is disabled. VOUT= 0 to 1.95V.
AC OPERATING TEST CONDITION
Parameter
AC Input High/Low Level Voltage
Input Timing Measurement Reference Level Voltage
Input Rise/Fall Time
Output Timing Measurement Reference Level Voltage
Output Load Capacitance for Access Time Measurement
Symbol
VIH / VIL
Vtrip
tR / tF
Voutref
CL
Value
0.8*VDDQ/0.2*VDDQ
0.5*VDDQ
1
0.5*VDDQ
Unit
V
V
ns
V
pF
Note
1
Note: 1. The circuit shown on the right represents the timing
load used in defining the relevant timing parameters of
the part. It is not intended to be either a precise repreZO=50Ω
Output
sentation of the typical system environment nor a depiction of the actual load presented by a production tester.
System designers will use IBIS or other simulation tools
Test Load for Full Drive Strength Buffer
to correlate the timing reference load to system environ(20 pF)
ment. Manufacturers will correlate to their production
(generally a coaxial transmission line terminated at the
Test Load for Half Drive Strength Buffer
(10 pF)
tester electronics). For the half strength driver with a
nominal 10pF load parameters tAC and tQH are
expected to be in the same range. However, these
parameters are not subject to production test but are
estimated by design and characterization. Use of IBIS or other simulation tools for system design validation is suggested.
Input / Output Capacitance
Parameter
Input capacitance, CK, CK
Input capacitance delta, CK, CK
Input capacitance, all other input-only pins
Input capacitance delta, all other input-only pins
Input/output capacitance, DQ, DM, DQS
Input/output capacitance delta, DQ, DM, DQS
Symbol
CCK
CDCK
CI
CDI
CIO
CDIO
Speed
Min
Max
1.5
1.5
2.0
-
3.5
0.25
3.0
0.5
4.5
0.5
Unit
Note
pF
pF
pF
pF
pF
pF
4
4
Note:
1. These values are guaranteed by design and are tested on a sample base only.
2. These capacitance values are for single monolithic devices only. Multiple die packages will have parallel capacitive loads.
3. Input capacitance is measured according to JEP147 procedure for measuring capacitance using a vector network analyzer. VDD,
VDDQ are applied and all other pins (except the pin under test) floating. DQ's should be in high impedance state. This may be
achieved by pulling CKE to low level.
4. Although DM is an input-only pin, the input capacitance of this pin must model the input capacitance of the DQ and DQS pins. This
is required to match signal propagation times of DQ, DQS and DM in the system.
Rev 1.2 / Jun. 2008
21
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
Mobile DDR OUTPUT SLEW RATE CHARACTERRISTICS
Parameter
Pull-up and Pull-Down Slew Rate for Full Strength Driver
Pull-up and Pull-Down Slew Rate for Half Strength Driver
Output Slew Rate Matching ratio (Pull-up to Pull-down)
Min
0.7
0.3
0.7
Max
2.5
1.0
1.4
Unit
V/ns
V/ns
-
Note
1, 2
1, 2
3
Note:
1. Measured with a test load of 20pF connected to VSSQ
2. Output slew rate for rising edge is measured between VILD(DC) to VIHD(AC) and for falling edge between VIHD(DC) to VILD(AC)
3. The ratio of pull-up slew rate to pull-down slew rate is specified for the same temperature and voltage, over the entire temperature
and voltage range. For a given output, it represents the maximum difference between pull-up and pull-down drivers due to process
variation.
Mobile DDR AC OVERSHOOT / UNDERSHOOT SPECIFICATION
Parameter
Maximum peak amplitude allowed for overshoot
Maximum peak amplitude allowed for undershoot
The area between overshoot signal and VDD must be less than or equal to
The area between undershoot signal and GND must be less than or equal to
Specification
0.5V
0.5V
3V-ns
3V-ns
Note:
1. This specification is intended for devices with no clamp protection and is guaranteed by design.
2.5V
Overshoot
2.0V
Voltage (V)
VDD
1.5V
1.0V
Max. Amplitude = 0.5V
Max. Area = 3V-ns
0.5V
0.0V
VSS
Undershoot
-0.5V
Time (ns)
Rev 1.2 / Jun. 2008
22
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
DC CHARACTERISTICS
Max
Parameter
Symbol
Test Condition
DDR DDR DDR DDR Unit Note
400 333 266 200
4KBytes
Operating one bank Page Size
active-precharge
2KBytes
current
Page Size
IDD0
tRC = tRC(min); tCK = tCK(min); CKE is HIGH;
CS is HIGH between valid commands; address inputs are SWITCHING; data bus inputs are STABLE
Precharge power-down
standby current
all banks idle; CKE is LOW; CS is HIGH;
IDD2P tCK = tCK(min); address and control inputs are
SWITCHING; data bus inputs are STABLE
0.4
mA
Precharge power-down
standby current
with clock stop
all banks idle; CKE is LOW; CS is HIGH;
IDD2PS CK = LOW; CK = HIGH; address and control inputs are SWITCHING; data bus inputs are STABLE
0.4
mA
Precharge non power-down
standby current
all banks idle; CKE is HIGH; CS is HIGH,
IDD2N tCK = tCK(min); address and control inputs are
SWITCHING; data bus inputs are STABLE
Precharge non power-down
standby current
with clock stop
all banks idle; CKE is HIGH; CS is HIGH;
IDD2NS CK = LOW; CK = HIGH; address and control inputs are SWITCHING; data bus inputs are STABLE
90
70
60
50
80
60
50
50
mA
15
12
mA
8
6
Active power-down
standby current
one bank active; CKE is LOW; CS is HIGH;
IDD3P tCK = tCK(min); address and control inputs are
SWITCHING; data bus inputs are STABLE
3
Active power-down
standby current
with clock stop
one bank active; CKE is LOW; CS is HIGH;
IDD3PS CK = LOW; CK = HIGH; address and control inputs are SWITCHING; data bus inputs are STABLE
2
Active non power-down
standby current
one bank active; CKE is HIGH; CS is HIGH;
IDD3N tCK = tCK(min); address and control inputs are
SWITCHING; data bus inputs are STABLE
15
12
mA
Active non power-down
standby current
with clock stop
one bank active; CKE is HIGH; CS is HIGH;
IDD3NS CK = LOW; CK = HIGH; address and control inputs are SWITCHING; data bus inputs are STABLE
8
6
mA
Operating burst read current
one bank active; BL=4; CL=3; tCK=tCK(min);
continuous read bursts; IOUT=0mA; address inIDD4R
puts are SWITCHING, 50% data change each
burst transfer
150
Operating burst write current
one bank active; BL=4; tCK=tCK(min); continuIDD4W ous write bursts; address inputs are SWITCHING;
50% data change each burst transfer
140
Auto Refresh Current
IDD5
tRC=tRFC(min); tCK=tCK(min); burst refresh;
CKE is HIGH; address and control inputs are
SWITCHING; data bus inputs are STABLE
Self Refresh Current
IDD6
CKE is LOW; CK=LOW; CK=HIGH;
Extended Mode Register set to all 0's; address
and control inputs are STABLE; data bus inputs
are STABLE
Deep Power Down Current
IDD8
Address, control and data bus inputs are STABLE
Rev 1.2 / Jun. 2008
1, 6
mA
130
110
90
mA
1
120
100
80
mA
120
mA
See Next Page
uA
2
10
uA
4
23
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
Note:
1. IDD specifications are tested after the device is properly initialized
2. Input slew rate is 1V/ns
3. Definitions for IDD:
LOW is defined as VIN ≤ 0.1 * VDDQ
HIGH is defined as VIN ≥ 0.9 * VDDQ
STABLE is defined as inputs stable at a HIGH or LOW level
SWITCHING is defined as
- address and command: inputs changing between HIGH and LOW once per two clock cycles
- data bus inputs: DQ changing between HIGH and LOW once per clock cycle
DM and DQS are STABLE
4. Please contact Hynix office for more information and ability for DPD operation. Deep Power Down operation is a hynix optional
function.
5. All IDD values are guaranteed by full range of operating voltage and temperature.
VDD, VDDQ = 1.7V ~ 1.95V. Temperature = -30oC ~ +85oC
6. H5MS1G22MFP Series : 4K Byte Page size, H5MS1G32MFP Series : 2K Byte Page size
DC CHARACTERISTICS - IDD6
Memory Array
Temp.
(oC)
4 Banks
2 Banks
1 Bank
45
450
350
300
uA
85
900
650
500
uA
Unit
Note:
1. Related numerical values in this 45oC are examples for reference sample value only.
2. With a on-chip temperature sensor, auto temperature compensated self refresh will automatically adjust the interval of self-refresh
operation according to case temperature variations.
Rev 1.2 / Jun. 2008
24
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
AC CHARACTERISTICS (AC operating conditions unless otherwise noted) (Sheet 1 of 2)
DDR400
Parameter
DDR333
DDR266
DDR200
Symbol
Unit Note
Min
Max
Min
Max
Min
Max
Min
Max
DQ Output Access Time (from CK, CK)
tAC
2.0
5.0
2.0
5.0
2.5
6.0
2.5
7.0
ns
DQS Output Access Time (from CK, CK)
tDQSCK
2.0
5.0
2.0
5.0
2.5
6.0
2.5
7.0
ns
Clock High-level Width
tCH
0.45
0.55
0.45
0.55
0.45
0.55
0.45
0.55
tCK
Clock Low-level Width
tCL
0.45
0.55
0.45
0.55
0.45
0.55
0.45
0.55
tCK
Clock Half Period
tHP
tCL,
tCH
(Min)
-
tCL,
tCH
(Min)
-
tCL,
tCH
(Min)
-
tCL,
tCH
(Min)
-
ns
CL = 3
tCK3
5
-
6.0
-
7.5
-
10
-
ns
CL = 2
tCK2
12
12
12
-
15
-
ns
DQ and DM Input Setup Time
tDS
0.54
0.6
0.8
1.1
ns
4,5,6
DQ and DM Input Hold Time
tDH
0.54
0.6
0.8
1.1
ns
4,5,6
DQ and DM Input Pulse Width
tDIPW
1.6
ns
7
Address and Control Input Setup Time
tIS
0.9
1.1
1.3
1.5
ns
6,8,9
Address and Control Input Hold Time
tIH
0.9
1.1
1.3
1.5
ns
6,8,9
Address and Control Input Pulse Width
tIPW
2.2
-
2.2
-
2.6
-
3.0
-
ns
7
1.0
-
1.0
-
1.0
-
1.0
-
ns
10
System Clock Cycle Time
3
DQ & DQS Low-impedance time from CK, CK tLZ
DQ & DQS High-impedance time from CK, CK tHZ
DQS - DQ Skew
tDQSQ
DQ / DQS output hold time from DQS
tQH
Data Hold Skew Factor
tQHS
-
1.6
-
1.6
-
2.2
-
5.0
5.0
6.0
7.0
ns
10
0.4
0.5
0.6
0.7
ns
11
ns
2
1.0
ns
2
1.25
tCK
tHP tQHS
tHP tQHS
0.5
tHP tQHS
0.65
tHP tQHS
0.75
Write Command to 1st DQS Latching TransitDQSS
tion
0.75
DQS Input High-Level Width
tDQSH
0.4
0.4
0.4
0.4
tCK
DQS Input Low-Level Width
tDQSL
0.4
0.4
0.4
0.4
tCK
DQS Falling Edge of CK Setup Time
tDSS
0.2
0.2
0.2
0.2
tCK
DQS Falling Edge Hold Time from CK
tDSH
0.2
0.2
0.2
0.2
tCK
Rev 1.2 / Jun. 2008
1,2
1.25
0.75
1.25
0.75
1.25
0.75
25
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
AC CHARACTERISTICS (AC operating conditions unless otherwise noted) (Sheet 2 of 2)
DDR400
Parameter
DDR333
DDR266
DDR200
Symbol
Unit
Min
Max
Min
Max
Min
Max
Min
Max
Note
MODE REGISTER SET Command Period
tMRD
2
-
2
-
2
-
2
-
tCK
MRS(SRR) to Read Command Period
tSRR
2
-
2
-
2
-
2
-
tCK
CL+1
-
CL+1
-
CL+1
-
CL+1
-
tCK
0
-
0
-
0
-
0
-
ns
12
13
Minimum Time between Status Register
tSRC
Read to Next Valid Command
Write Preamble Setup Time
tWPRES
Write Postamble
tWPST
0.4
0.6
0.4
0.6
0.4
0.6
0.4
0.6
tCK
Write Preamble
tWPRE
0.25
-
0.25
-
0.25
-
0.25
-
tCK
CL = 3
tRPRE
0.9
1.1
0.9
1.1
0.9
1.1
0.9
1.1
tCK
14
CL = 2
tRPRE
0.5
1.1
0.5
1.1
0.5
1.1
0.5
1.1
tCK
14
Read Postamble
tRPST
0.4
0.6
0.4
0.6
0.4
0.6
0.4
0.6
tCK
ACTIVE to PRECHARGE Command Period
tRAS
40
70,00
0
42
70,00
0
45
70,00
0
50
70,00
0
ns
ACTIVE to ACTIVE Command Period
tRC
55
-
60
-
75
-
80
-
ns
AUTO REFRESH to ACTIVE/AUTO REFRESH
tRFC
Command Period
110
-
110
-
110
-
110
-
ns
ACTIVE to READ or WRITE Delay
tRCD
15
-
18
-
22.5
-
30
-
ns
15
PRECHARGE Command Period
tRP
15
-
18
-
22.5
-
30
-
ns
15
ACTIVE Bank A to ACTIVE Bank B Delay
tRRD
10
-
12
-
15
-
15
-
ns
WRITE Recovery Time
tWR
15
-
15
-
15
-
15
-
ns
Read Preamble
Auto Precharge Write Recovery + Precharge
tDAL
Time
Internal Write to Read Command Delay
tWTR
Self Refresh Exit to next valid Command DetXSR
lay
Exit Power Down to next valid Command DetXP
lay
(tWR/tCK) + (tRP/tCK)
tCK
2
-
1
-
1
-
1
-
tCK
140
-
140
-
140
-
140
-
ns
tIS +
2CLK
-
tIS +
1CLK
-
tIS +
1CLK
-
tIS +
1CLK
-
ns
CKE min. Pulse Width (High and Low)
tCKE
1
-
1
-
1
-
1
-
tCK
Average Periodic Refresh Interval
tREFI
-
7.8
-
7.8
-
7.8
-
7.8
us
Refresh Period
tREF
-
64
-
64
-
64
-
64
ms
Rev 1.2 / Jun. 2008
16
17
26
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
Note:
1. Min (tCL, tCH) refers to the smaller of the actual clock low time and the actual clock high time as provided to the device
(i.e. this value can be greater than the minimum specification limits for tCL and tCH)
2. tQH = tHP - tQHS, where tHP = minimum half clock period for any given cycle and is defined by clock high or clock low (tCL, tCH).
tQHS accounts for 1) the pulse duration distortion of on-chip clock circuits; and 2) the worst case push-out of DQS on one transition
followed by the worst case pull-in of DQ on the next transition, both of which are, separately, due to data pin skew and output
pattern effects, and p-channel to n-channel variation of the output drivers.
3. The only time that the clock frequency is allowed to change is during clock stop, power-down or self-refresh modes.
4. The transition time for DQ, DM and DQS inputs is measured between VIL(DC) to VIH(AC) for rising input signals, and VIH(DC) to
VIL(AC) for falling input signals.
5. DQS, DM and DQ input slew rate is specified to prevent double clocking of data and preserve setup and hold times. Signal transitions
through the DC region must be monotonic.
6. Input slew rate ≥ 1.0 V/ns.
7. These parameters guarantee device timing but they are not necessarily tested on each device.
8. The transition time for address and command inputs is measured between VIH and VIL.
9. A CK/CK differential slew rate of 2.0 V/ns is assumed for this parameter.
10. tHZ and tLZ transitions occur in the same access time windows as valid data transitions. These parameters are not referred to a
specific voltage level, but specify when the device is no longer driving (HZ), or begins driving (LZ).
11. tDQSQ consists of data pin skew and output pattern effects, and p-channel to n-channel variation of the output drivers for any
given cycle.
12. The specific requirement is that DQS be valid (HIGH, LOW, or some point on a valid transition) on or before this CK edge. A valid
transition is defined as monotonic and meeting the input slew rate specifications of the device. When no writes were previously in
progress on the bus, DQS will be transitioning from Hi-Z to logic LOW. If a previous write was in progress, DQS could be HIGH,
LOW, or transitioning from HIGH to LOW at this time, depending on tDQSS.
13. The maximum limit for this parameter is not a device limit. The device operates with a greater value for this parameter, but system
performance (bus turnaround) will degrade accordingly.
14. A low level on DQS may be maintained during High-Z states (DQS drivers disabled) by adding a weak pull-down element in the
system. It is recommended to turn off the weak pull-down element during read and write bursts (DQS drivers enabled).
15. Speed bin (CL-tRCD-tRP) = 3-3-3
16. Minimum 3CLK of tDAL(= tWR+tRP) is required because it need minimum 2CLK for tWR and minimum 1CLK for tRP.
tDAL = (tWR/tCK) + (tRP/tCK): for each of the terms above, if not already an integer, round to the next higher integer.
17. A maximum of eight Refresh commands can be posted to any given Low Power DDR SDRAM (Mobile DDR SDRAM), meaning that
the maximum absolute interval between any Refresh command and the next Refresh command is 8*tREFI.
18. All AC parameters are guaranteed by full range of operating voltage and temperature.
VDD, VDDQ = 1.7V ~ 1.95V. Temperature = -30oC ~ 85oC
Rev 1.2 / Jun. 2008
27
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
Mobile DDR SDRAM OPERATION
State Diagram
Power
applied
ACT :
Active
DEEP
POWER
DOWN
DPDSX
POWER
ON
B ST :
B urst
CKEL :
E nter Pow er-Dow n
PCG.
ALL
BANKS
DPDS
CKEH :
E xit Pow er-Dow n
SELF
REFRESH
(E)MRS
SET
DPDS :
E nter Deep
Pow er-Dow n
SRR
REFS
REFSX
MRS,
EMRS
READ
SRR
IDLE
ALL BANK
PCG.
CKEL
READ
E M RS :
E xt. M ode Reg.
Set
REFA
CKEH
PCG.
POWER
DOWN
DPDSX :
E xit Deep Pow erDow nEM R S
AUTO
REFRESH
ACT
MRS :
M ode Register Set
PR E :
Precharge
ACTIVE
POWER
DOWN
BURST
STOP
CKEL
CKEH
ROW
ACTIVE
PR EALL :
Precharge All
B anks
R EFA :
Auto R efresh
BST
WRITE
READ
R EFS :
E nter Self R efresh
WRITEA
WRITE
READA
WRITE
READ
WRITEA
READA
WRITE A
READ
R EAD :
R ead w /o Auto
Precharge
READA
R EADA :
R ead w ith Auto
Precharge
READ A
PRE
PRE
R EFSX :
E xit Self Refresh
READ
W R ITE :
W rite w /o Auto
Precharge
PRE
W R ITEA :
W rite w ith Auto
Precharge
Precharge
ALL
COMMAND Input
AUTOMATIC
Sequence
Rev 1.2 / Jun. 2008
SR R :
Status R egister
R ead
28
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
DESELECT
The DESELECT function (CS = High) prevents new commands from being executed by the Mobile DDR SDRAM. The
Mobile DDR SDRAM is effectively deselected. Operations already in progress are not affected.
NO OPERATION
The NO OPERATION (NOP) command is used to perform a NOP to a Mobile DDR SDRAM that is selected (CS = Low).
This prevents unwanted commands from being registered during idle or wait states. Operations already in progress are
not affected. (see to next figure)
ACTIVE
The Active command is used to activate a row in a particular bank for a subsequent Read or Write access. The value of
the BA0,BA1 inputs selects the bank, and the address provided on A0-A13 (only 2KByte page size. If the 4KBytes page
size, A0~A12 are provided) selects the row. (see to next figure)
Before any READ or WRITE commands can be issued to a bank within the Mobile DDR SDRAM, a row in that bank
must be opened. This is accomplished via the ACTIVE command, which selects both the bank and the row to be activated.
The row remains active until a PRECHARGE (or READ with AUTO PRECHARGE or WRITE with AUTO PRECHARGE) command is issued to the bank.
A PRECHARGE (or READ with AUTO PRECHARGE or WRITE with AUTO PRECHARGE) command must be issued before
opening a different row in the same bank.
CLK
CLK
CLK
CLK
CKE
CKE
(High)
CS
CS
RAS
RAS
CAS
CAS
WE
WE
A0~A13
A0~A13
(High)
RA
Row Address
BA
BA0, BA1
BA0,BA1
Bank Address
Don't Care
NOP Command
Rev 1.2 / Jun. 2008
Don't Care
ACTIVE Command
29
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
Once a row is Open (with an ACTIVE command) a READ or WRITE command may be issued to that row, subject to the
tRCD specification. tRCD (MIN) should be divided by the clock period and rounded up to the next whole number to
determine the earliest clock edge after the ACTIVE command on which a READ or WRITE command can be entered.
A subsequent ACTIVE command to a different row in the same bank can only be issued after the previous active row
has been closed (precharge). The minimum time interval between successive ACTIVE commands to the same bank is
defined by tRC.
A subsequent ACTIVE command to another bank can be issued while the first bank is being accessed, which results in
a reduction of total row-access overhead. The minimum time interval between successive ACTIVE commands to different banks is defined by tRRD.
/CLK
CLK
Com m and
Bank A
ACT
Address
Bank A
Row
NOP
NOP
N OP
W rite A
W ith A/P
Bank A
Col
NOP
Bank B
ACT
NOP
Bank B
Row
Bank A
ACT
Bank A
Row
tRRD
tRCD
tRC
D on't C are
Once a row is Open(w ith an ACTIVE com m and) a READ or W RITE com m and m ay be issued to that row , subject to the
tRCD specification. tRCD (M IN) should be divided by the clock period and rounded up to the next w hole num ber to
determ ine the earliest clock edge after the ACTIVE com m and on which a READ or W RITE com m and can be entered .
Rev 1.2 / Jun. 2008
30
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
READ / WRITE COMMAND
The READ command is used to initiate a Burst Read to an active row. The value of BA0 and BA1 selects the bank and
address inputs select the starting column location.
The value of A10 determines whether or not auto precharge is used. If auto precharge is selected, the row being
accessed will be precharged at the end of the read burst; if auto precharge is not selected, the row will remain open
for subsequent access. The valid data-out elements will be available CAS latency after the READ command is issued.
The Mobile DDR drives the DQS during read operations. The initial low state of the DQS is known as the read preamble
and the last data-out element is coincident with the read postamble. DQS is edge-aligned with read data. Upon completion of a burst, assuming no new READ commands have been initiated, the I/O's will go high-Z.
The WRITE command is used to initiate a Burst Write access to an active row. The value of BA0, BA1 selects the bank
and address inputs select the starting column location.
The value of A10 determines whether or not auto precharge is used.If auto precharge is selected, the row being
accessed will be precharged at the end of the write burst; if auto precharge is not selected, the row will remain open
for subsequent access. Input data appearing on the data bus, is written to the memory array subject to the DM input
logic level appearing coincident with the data. If a given DM signal is registered low, the corresponding data will be
written to the memory; if the DM signal is registered high, the corresponding data-inputs will be ignored, and a write
will not be executed to that byte/column location. The memory controller drives the DQS during write operations. The
initial low state of the DQS is known as the write preamble and the low state following the last data-in element is write
postamble. Upon completion of a burst, assuming no new commands have been initiated, the I/O's will stay high-Z
and any additional input data will be ignored.
When READ or WRITE command issues, the A0~A8 (column address) are provided if only 2KBytes page size as shown
below figure. If the page size is 4KBytes, the A0~A9 (column address) are provided.
CLK
CLK
CLK
CLK
CKE
CKE
(High)
CS
CS
RAS
RAS
CAS
CAS
WE
WE
A0~A8
CA
CA
High to enable
Auto Precharge A10
A10
BA0, BA1
A0~A8
(High)
BA
Read Com m and
Low to disable
Auto Precharge
BA0, BA1
Don't Care
BA
W rite Com m and
READ / WRITE COMMAND
Rev 1.2 / Jun. 2008
31
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
READ
The basic Read timing parameters for DQ are shown next figure (Basic Read Timing Parameters). They apply to all
Read operations. During Read bursts, DQS is driven by the Mobile DDR SDRAM along with the output data. The initial
Low state of the DQS is known as the read preamble; the Low state coincident with last data-out element is known as
the read postamble.
tCK
tC H
tCK
tC L
/C LK
CLK
tD Q SC K
tA C m a x
tD Q SC K
tRPST
tR PRE
DQS
tD Q SQ m ax
tA C
tQ H
D on
DQ
tLZ
tA C m in
tH Z
D o n+ 1 D o n+ 2 D o n+ 3
tQ H
tQ H
tD Q SC K
tD Q SC K
tRPST
tR PR E
DQS
tD Q S Q m ax
tH Z
tA C
D on
DQ
tLZ
D o n+ 1 D o n+ 2 D o n+ 3
tQ H
tQ H
D o n 't C a re
1) D o n : D a ta O ut from co lu m n n
2) All D Q are vaild tA C after th e C K edge
All D Q are vaild tD Q SQ after th e D Q S edge, regardless of tA C
Basic Read Timing Parameters
Rev 1.2 / Jun. 2008
32
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
The first data-out element is edge aligned with the first rising edge of DQS and the successive data-out elements are
edge aligned to successive edges of DQS. This is shown in next figure with a CAS latency of 2 and 3.
Upon completion of a read burst, assuming no other READ command has been initiated, the DQ will go to High-Z.
/CLK
CLK
Command
READ
Address
BA,
Col n
NOP
NOP
NOP
NOP
NOP
CL =2
DQS
DQ
Do n
CL =3
DQS
Do n
DQ
Don't Care
1)
2)
3)
4)
Do n : Data out from column n
BA, Col n = Bank A, Column n
Burst Length = 4; 3 subseqnent elements of Data Out appear in the programmed order following Do n
Shown with nominal tAC, tDQSCK and tDQSQ
Read Burst Showing CAS Latency
Rev 1.2 / Jun. 2008
33
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
READ to READ
Data from a read burst may be concatenated or truncated by a subsequent READ command. The first data from the
new burst follows either the last element of a completed burst or the last desired element of a longer burst that is
being truncated. The new READ command should be issued X cycles after the first READ command, where X equals
the number of desired data-out element pairs (pairs are required by the 2n prefetch architecture).
/C LK
C LK
Co m m an d
REA D
A ddress
BA ,
C ol n
NOP
R EA D
NOP
NOP
NOP
BA ,
C ol b
CL =2
DQS
DQ
Dob
Don
CL =3
DQS
Don
DQ
D ob
D on't C are
1)
2)
3)
4)
5)
D o n (or b ): D ata out from colum n n (or colum n b)
BA , C ol n (b) = Bank A , C olum n n (b)
Burst Length = 4 or 8 (if 4 , the bursts are concatenated; if 8, the second burst interrupts the first)
R ead bursts are to an active row in any bank
Show n w ith nom inal tA C, tD Q SC K and tD Q SQ
Consecutive Read Bursts
A READ command can be initiated on any clock cycle following a previous READ command. Non-consecutive Reads are
shown in the first figure of next page. Random read accesses within a page or pages can be performed as shown in
second figure of next page.
Rev 1.2 / Jun. 2008
34
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
/C L K
C LK
Com m and
READ
A d d re ss
BA,
Col n
NOP
NOP
READ
NOP
NOP
BA,
Col b
CL =2
DQS
DQ
Dob
D on
CL =3
DQS
Don
DQ
D o n 't C a r e
1)
2)
3)
4)
D o n ( o r b ) : D a t a o u t fr o m c o lu m n n ( o r c o lu m n b )
B A , C o l n ( b ) = B a n k A , C o lu m n n ( b )
B u r s t L e n g t h = 4 ; 3 s u b s e q u e n t e le m e n t s o f D a t a O u t a p p e a r in th e p r o g r a m m e d o r d e r fo llo w in g D o n (b )
S h o w n w it h n o m in a l t A C , t D Q S C K a n d t D Q S Q
Non-Consecutive Read Bursts
/C L K
CLK
Com m and
READ
READ
READ
READ
A d d re ss
BA,
Col n
BA,
Col x
BA,
Col b
BA,
Col g
NOP
NOP
CL =2
DQS
DQ
D on
Don'
D ox
D ox'
D ob
Dob'
D og
Don
Don'
D ox
D ox'
Dob
D og'
CL =3
DQS
DQ
Dob'
D o n 't C a r e
1 ) D o n , e t c : D a t a o u t f r o m c o lu m n n , e t c
n ', x ', e t c : D a t a O u t e le m e n t s , a c c o d in g t o t h e p r o g r a m m d b u r s t o r d e r
2 ) B A , C o l n = B a n k A , C o lu m n n
3 ) B u r s t L e n g t h = 2 , 4 o r 8 in c a s e s s h o w n ( i f b u r s t o f 4 o r 8 , t h e b u r s t is in t e r r u p t e d )
4 ) R e a d a r e t o a c t i v e r o w s in a n y b a n k s
Random Read Bursts
Rev 1.2 / Jun. 2008
35
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
READ BURST TERMINATE
Data from any READ burst may be truncated with a BURST TERMINATE command. The BURST TERMINATE latency is
equal to the read (CAS) latency, i.e., the BURST TERMINATE command should be issued X cycles after the READ command where X equals the desired data-out element pairs.
/CLK
CLK
Com m and
R EAD
Address
BA,
Col n
BURST
Term inate
NOP
NOP
NOP
NOP
CL = 2
DQS
DQ
CL = 3
DQS
DQ
D on't Care
1)
2)
3)
4)
D o n : D ata out from colum n n
BA, Col n = Bank A, Colum n n
Cases show n are bursts of 4 or 8 term inated after 2 data elem ents
Show n w ith nom inal tAC, tD Q SCK and tD Q SQ
Terminating a Read Burst
Rev 1.2 / Jun. 2008
36
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
READ to WRITE
Data from READ burst must be completed or truncated before a subsequent WRITE command can be issued. If truncation is necessary, the BURST TERMINATE command must be used, as shown in next fig. for the case of nominal
tDQSS.
/CLK
CLK
Com m and
READ
Address
BA,
Col n
BST
NOP
W R ITE
NOP
NOP
BA,
Col b
CL = 2
tD QSS
DQS
DQ
D on
Com m and
READ
Address
BA,
Col n
BST
DI b
NOP
NOP
NOP
W RITE
BA,
Col b
CL = 3
DQS
D on
DQ
DI b
DM
Don't Care
1) D O n = D ata O ut from colum n n; D I b = D ata In to colum n b
2) Burst length = 4 or 8 in the cases show n; if the burst length is 2, the BST com m and can be om m itted
3) Show n w ith nom inal tAC, tD Q SCK and tD QSQ
Read to Write
Rev 1.2 / Jun. 2008
37
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
READ to PRECHARGE
A Read burst may be followed by or truncated with a PRECHARGE command to the same bank (provided Auto Precharge was not activated). The PRECHARGE command should be issued X cycles after the READ command, where X
equal the number of desired data-out element pairs.
Following the PRECHARGE command, a subsequent command to the same bank cannot be issued until tRP is met.
Note that part of the row precharge time is hidden during the access of the last data-out elements.In the case of a
Read being executed to completion, a PRECHARGE command issued at the optimum time (as described above) provides the same operation that would result from Read burst with Auto Precharge enabled.
The disadvantage of the PRECHARGE command is that it requires that the command and address buses be available at
the appropriate time to issue the command. The advantage of the PRECHARGE command is that it can be used to
truncate bursts.
/CLK
CLK
Command
READ
Address
BA,
Col n
NOP
PRE
NOP
NOP
ACT
BA,
Row
Bank
( A or All)
tRP
CL =2
DQS
DQ
Do n
CL =3
DQS
Do n
DQ
Don't Care
1)
2)
3)
4)
5)
6)
DO n = Data Out from column n
Cases shown are either uninterrupted burst of 4, or interrupted bursts of 8
Shown with nominal tAC, tDQSCK and tDQSQ
Precharge may be applied at (BL / 2) tCK after the READ command.
Note that Precharge may not be issued before tRAS ns after the ACTIVE command for applicable banks.
The ACTIVE command may be applied if tRC has been met.
READ to PRECHARGE
Rev 1.2 / Jun. 2008
38
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
Write
Input data appearing on the data bus, is written to the memory array subject to the DM input logic level appearing
coincident with the data. If a given DM signal is registered Low, the corresponding data will be written to the memory;
if the DM signal is registered High, the corresponding data inputs will be ignored, and a write will not be executed to
that byte / column location.
Basic Write timing parameters for DQ are shown in Figure; they apply to all Write operations.
tC H
tC K
tC L
/C LK
C LK
Case 1:
tD Q SS = m in
DQS
tD SH
tW PST
tD Q SH
tD Q SS
tW PRE
tW PR ES
tD S
tD Q SL
tD H
DI n
DQ, DM
Case 2:
tD Q SS = m ax
DQS
tD SH
tD Q SH
tD Q SS
tD SS
tW PST
tW PR ES
tD Q SL
tW PRE
DQ, DM
tD SS
tD S
tD H
DI n
D o n 't C a re
1) D I n: D ata in for colum n n
2) 3 subseq uent elem ents of D ata in are ap p lied in the p rog ram m ed ord er follow ing D I n
3) tD Q SS : each rising edg e of D Q S m ust fall w ithin the + /-25 (p ercentage) w ind ow of the corresp onding positive clock edg e
Basic Write Timing Parameters
During Write bursts, the first valid data-in element will be registered on the first rising edge of DQS following the
WRITE command, and the subsequent data elements will be registered on successive edges of DQS. The Low state of
DQS between the WRITE command and the first rising edge is called the write preamble, and the Low state on DQS
following the last data-in element is called the write postamble.
The time between the WRITE command and the first corresponding rising edge of DQS (tDQSS) is specified with a relatively wide range - from 75% to 125% of a clock cycle. Next fig. shows the two extremes of tDQSS for a burst of 4.
Upon completion of a burst, assuming no other commands have been initiated, the DQ will remain high-Z and any
additional input data will be ignored.
Rev 1.2 / Jun. 2008
39
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
/CLK
CLK
Command
W RITE
Address
BA,
Col b
NOP
NO P
NO P
NO P
NOP
tD QSS min
DQS
DQ
DM
tDQSS m ax
DQS
DQ
DM
Don't Care
1)
2)
3)
4)
DI b = Data In to colum n b
3 subsequent elem ents of Data In are applied in the program m ed order following DI b
A non-interrupted burst of 4 is shown
A10 is low with the W RITE com m and (Auto Precharge is disabled)
Write Burst (min. and max. tDQSS)
Rev 1.2 / Jun. 2008
40
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
WRITE to WRITE
Data for any WRITE burst may be concatenated with or truncated with a subsequent WRITE command. In either case,
a continuous flow of input data, can be maintained. The new WRITE command can be issued on any positive edge of
the clock following the previous WRITE command.The first data-in element from the new burst is applied after either
the last element of a completed burst or the last desired data element of a longer burst which is being truncated. The
new WRITE command should be issued X cycles after the first WRITE command, where X equals the number of
desired data-in element pairs.
/CLK
CLK
Command
WRITE
Address
BA,
Col b
NOP
WRITE
NOP
NOP
NOP
BA,
Col n
tDQSS min
DQS
DQ
DI
DI
b
n
DM
tDQSS max
DQS
DQ
DI
DI
b
n
DM
Don't Care
1) DI b (n ) = Data In to column b (column n)
2) 3 subsequent elements of Data In are applied in the programmed order following DI b.
3 subsequent elements of Data In are applied in the programmed order following DI n.
3) Non-interrupted bursts of 4 are shown.
4) Each WRITE command may be to any active bank
Concatenated Write Bursts
Rev 1.2 / Jun. 2008
41
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
/C LK
CLK
C om m an d
W R IT E
A d d ress
BA,
Col b
NOP
NOP
NOP
W R IT E
NOP
BA,
Col n
tD Q S S m a x
DQS
DI
n
DI
b
DQ
DM
D on 't C a re
1 ) D I b ( n ) = D a ta In to co lu m n b
2 ) 3 su b se q u e n t e le m e n ts o f D a ta
3 su b se q u e n t e le m e n ts o f D a ta
3 ) N o n -in te rru p te d b u rsts o f 4 a re
4 ) E a ch W R IT E co m m a n d m a y b e
(o r co lu m n n ).
In a re a p p lie d in th e p ro g ra m m e d o rd e r fo llo w in g D I b .
In a re a p p lie d in th e p ro g ra m m e d o rd e r fo llo w in g D I n .
sh o w n .
to a n y a ctive b a n k a n d m a y b e to th e sa m e o r d iffe re n t d e v ice s .
Non-Concatenated Write Bursts
/C LK
C LK
Com m and
W R IT E
W R IT E
W R IT E
W R IT E
W R IT E
A ddress
BA,
C ol b
BA,
Col x
BA,
C ol n
BA ,
C ol a
BA,
Col g
NOP
tD Q SS m ax
DQS
DQ
Di
Di
Di
Di
Di
Di
Di
Di
b
b'
x
x'
n
n'
a
a'
DM
D on't Care
1 ) D I b etc. = D a ta In to colum n b, e tc.
; b', etc. = th e next D ata In fo llo w in g D I b, etc. a cco rding to the program m ed burst order
2 ) Pro gram m ed burst length = 2, 4 or 8 in cases show n. If burst of 4 or 8, burst w ould be truncate d.
3 ) Each W R IT E co m m and m ay be to an y active ban k an d m ay be to the sam e o r diffe rent devices.
Random Write Cycles
Rev 1.2 / Jun. 2008
42
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
WRITE to READ
Data for any Write burst may be followed by a subsequent READ command. To follow a Write without truncating the
write burst, tWTR should be met as shown in Figure.
/CLK
CLK
Command
WRITE
Address
BA,
Col b
NOP
NOP
READ
NOP
NOP
NOP
BA,
Col n
tWTR
tDQSSmax
CL=3
DQS
DQ
Di
b
DM
Don't Care
1) DI b = Data In to column b . 3 subsequent elements of Data In are applied in the programmed order following DI b.
2) A non-interrupted burst of 4 is shown.
3) tWTR is referenced from the positive clock edge after the last Data In pair.
4) A10 is LOW with the WRITE command (Auto Precharge is disabled)
5) The READ and WRITE commands are to the same device but not necessarily to the same bank.
Data for any Write burst may be truncated by a subsequent READ command as shown in Figure. Note that the only
data-in pairs that are registered prior to the tWTR period are written to the internal array, and any subsequent data-in
must be masked with DM.
Rev 1.2 / Jun. 2008
43
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
/CLK
CLK
Command
WRITE
Address
BA,
Col b
NOP
NOP
READ
NOP
NOP
NOP
BA,
Col n
tWTR
tDQSSmax
CL=3
DQS
DI
DQ
Don
b
DM
Don't Care
1) DI b = Data In to column b. DO n = Data Out from column n.
2) An interrupted burst of 4 is shown, 2 data elements are written.
3 subsequent elements of Data In are applied in the programmed order following DI b.
3) tWTR is referenced from the positive clock edge after the last Data In pair.
4) A10 is LOW with the WRITE command (Auto Precharge is disabled)
5) The READ and WRITE commands are to the same device but not necessarily to the same bank.
Interrupting Write to Read
Rev 1.2 / Jun. 2008
44
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
WRITE to PRECHARGE
Data for any WRITE burst may be followed by a subsequent PRECHARGE command to the same bank (provided Auto
Precharge was not activated). To follow a WRITE without truncating the WRITE burst, tWR should be met as shown in
Fig.
/CLK
CLK
Command
WRITE
Address
BA,
Col b
NOP
NOP
NOP
NOP
PRE
BA
(A or All)
tDQSS max
tWR
DQS
DI
DQ
b
DM
Don't Care
1) DI b (n) = Data In to column b (column n)
3 subsequent elements of Data In are applied in the programmed order following DI b.
2) A non-interrupted bursts of 4 are shown.
3) tWR is referenced from the positive clock edge after the last Data In pair.
4) A10 is LOW with the WRITE command (Auto Precharge is disabled)
Non-Interrupting Write to Precharge
Rev 1.2 / Jun. 2008
45
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
Data for any WRITE burst may be truncated by a subsequent PRECHARGE command as shown in Figure.
Note that only data-in pairs that are registered prior to the tWR period are written to the internal array, and any subsequent data-in should be masked with DM, as shown in next Fig. Following the PRECHARGE command, a subsequent
command to the same bank cannot be issued until tRP is met.
/CLK
CLK
Command
WRITE
Address
BA,
Col b
NOP
NOP
PRE
NOP
NOP
BA
(A or All)
tDQSSmax
tWR
*2
DQS
DI
DQ
b
DM
*1
*1
*1
*1
Don't Care
1)
2)
3)
4)
5)
6)
DI b = Data In to column b .
An interrupted burst of 4 or 8 is shown, 2 data elements are written.
tWR is referenced from the positive clock edge after the last desired Data In pair.
A10 is LOW with the WRITE command (Auto Precharge is disabled)
*1 = can be Don't Care for programmed burst length of 4
*2 = for programmed burst length of 4, DQS becomes Don't Care at this point
Interrupting Write to Precharge
Rev 1.2 / Jun. 2008
46
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
BURST TERMINATE
The BURST TERMINATE command is used to truncate read bursts (with auto precharge disabled). The most recently
registered READ command prior to the BURST TERMINATE command will be truncated, as shown in the Operation section of this datasheet. Note the BURST TERMINATE command is not bank specific. This command should not be used
to terminate write bursts.
The below figure shows in case of 2KByte page size. If the page size is 4KByte, A0~A12 are provided.
CLK
CLK
CKE
(High)
CS
RAS
CAS
WE
A0~A13
Don't Care
BA0,BA1
BURST TERMINATE COMMAND
Rev 1.2 / Jun. 2008
47
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
PRECHARGE
The PRECHARGE command is used to deactivate the open row in a particular bank or the open row in all banks.
Another command to the same bank (or banks) being precharged must not be issued until the precharge time (tRP) is
completed.
If one bank is to be precharged, the particular bank address needs to be specified. If all banks are to be precharged,
A10 should be set high along with the PRECHARGE command. If A10 is high, BA0 and BA1 are ignored. A PRECHARGE
command will be treated as a NOP if there is no open row in that bank, or if the previously open row is already in the
process of precharging.
The below figure shows in case of 2KByte page size. If the page size is 4KByte, A0~A9, A11 and A12 are provided.
CLK
CLK
CKE
(High)
A10 defines the precharge
mode when a precharge
command, a read command
or a write command is
issued.
CS
RAS
If A10 =High when a
precharge command is
issued, all banks are
precharged.
CAS
If A10 =Lowwhen a
precharge command is
issued, only the bank that is
selected by BA1/BA0 is
precharged.
WE
A0~A9,
A11~A13
If A10 =High when read or
write command, autoprecharge function is
enabled.
While A10 = Low, autoprecharge function is
disabled.
A10
BA0, BA1
BA
Bank Address
Don't Care
PRECHARGE command
AUTO PRECHARGE
Auto Precharge is a feature which performs the same individual bank precharge function as described above, but without requiring an explicit command.
This is accomplished by using A10 (A10=high), to enable auto precharge in conjunction with a specific Read or Write
command. This precharges the bank/row after the Read or Write burst is complete.
Auto precharge is non persistent, so it should be enabled with a Read or Write command each time auto precharge is
desired. Auto precharge ensures that a precharge is initiated at the earliest valid stage within a burst.
The user must not issue another command to the same bank until the precharge time (tRP) is completed.
Rev 1.2 / Jun. 2008
48
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
AUTO REFRESH AND SELF REFRESH
Mobile DDR devices require a refresh of all rows in any rolling 64ms interval. Each refresh is generated in one of two
ways: by an explicit AUTO REFRESH command, or by an internally timed event in SELF REFRESH mode:
- AUTO REFRESH.
This command is used during normal operation of the Mobile DDR. It is non persistent, so must be issued each time a
refresh is required. The refresh addressing is generated by the internal refresh controller.The Mobile DDR requires
AUTO REFRESH commands at an average periodic interval of tREFI.
To allow for improved efficiency in scheduling and switching between tasks, some flexibility in the absolute refresh
interval is provided. A maximum of eight AUTO REFRESH commands can be posted to any given Mobile DDR, and the
maximum absolute interval between any AUTO REFRESH command and the next AUTO REFRESH command is 8*tREFI.
-SELF REFRESH.
This state retains data in the Mobile DDR, even if the rest of the system is powered down (even without external clocking). Note refresh interval timing while in Self Refresh mode is scheduled internally in the Mobile DDR and may vary
and may not meet tREFI time.
''Don't Care'' except CKE, which must remain low. An internal refresh cycle is scheduled on Self Refresh entry. The procedure for exiting Self Refresh mode requires a series of commands. First clock must be stable before CKE going high.
NOP commands should be issued for the duration of the refresh exit time (tXSR), because time is required for the completion of any internal refresh in progress.
The use of SELF REFRESH mode introduces the possibility that an internally timed event can be missed when CKE is
raised for exit from self refresh mode. Upon exit from SELF REFRESH an extra AUTO REFRESH command is recommended. In the self refresh mode, two additional power-saving options exist. They are Temperature Compensated Self
Refresh and Partial Array Self Refresh and are described in the Extended Mode Register section.
The Self Refresh command is used to retain cell data in the Mobile SDRAM. In the Self Refresh mode, the Mobile SDRAM
operates refresh cycle asynchronously.
The Self Refresh command is initiated like an Auto Refresh command except CKE is disabled (Low). The Mobile DDR
can accomplish an special Self Refresh operation by the specific modes (PASR) programmed in extended mode registers. The Mobile DDR can control the refresh rate automatically by the temperature value of Auto TCSR (Temperature
Compensated Self Refresh) to reduce self refresh current and select the memory array to be refreshed by the value of
PASR (Partial Array Self Refresh). The Mobile DDR can reduce the self refresh current(IDD6) by using these two
modes.
The figure of next page shows in case of 2KByte page size. If the page size is 4KByte, A0~A12 are provided.
Rev 1.2 / Jun. 2008
49
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
CLK
CLK
CLK
CLK
CKE
(High)
CKE
CS
CS
RAS
RAS
CAS
CAS
WE
WE
A0~A13
A0~A13
BA0, BA1
BA0, BA1
Don't Care
Auto Refresh Command
Rev 1.2 / Jun. 2008
Self Refresh Command
50
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
/CLK
CLK
tRFC
tXSR
tRFC
tRP
CKE
Command
NOP
PRE
ARF
NOP
NOP
ARF
NOP
ACT
BA A
Row n
Address
A10(AP)
NOP
Pre
All
Row n
High-Z
DQ
Enter
Self Refresh
Mode
Exit
Self Refresh
Mode
Any Command
(Auto Refresh
Recommended)
Cont't Care
SELF REFRESH ENTRY AND EXIT
Rev 1.2 / Jun. 2008
51
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
MODE REGISTER SET
The Mode Register and the Extended Mode Register are loaded via the address bits. BA0 and BA1 are used to select
among the Mode Register, the Extended Mode Register and Status Register. See the Mode Register description in the
register definition section. The MODE REGISTER SET command can only be issued when all banks are idle and no
bursts are in progress, and a subsequent executable command cannot be issued until tMRD is met.
The below figure shows in case of 2KByte page size. If the page size is 4KByte, A0~A12 are provided.
CLK
CLK
CKE
(H igh)
CS
RAS
CAS
WE
A 0 ~ A 13
C ode
B A 0 ,B A 1
C ode
D o n 't C a re
MODE REGISTER SET COMMAND
/CLK
CLK
Command
MRS
NOP
Valid
tMRD
Address
Code
Valid
Don't Care
Code = Mode Register / Extended Mode Register selection
(BA0, BA1) and op-code (A0 - An)
tMRD DEFINITION
Rev 1.2 / Jun. 2008
52
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
Mode Register
The mode register contains the specific mode of operation of the Mobile DDR SDRAM. This register includes the selection of a burst length(2, 4 or 8), a cas latency(2 or 3), a burst type. The mode register set must be done before any
activate command after the power up sequence. Any contents of the mode register be altered by re-programming the
mode register through the execution of mode register set command.
0
1
2
3
4
5
6
CLK
CLK
CM D
Mode
Register
Set
Precharge
All Bank
tCK
tRP
Comm and
(any)
2 CLK m in
Mode Register Set
BURST LENGTH
Read and write accesses to the Mobile DDR SDRAM are burst oriented, with the burst length being programmable, as
shown in Page10. The burst length determines the maximum number of column locations that can be accessed for a
given READ or WRITE command. Burst lengths of 2, 4 or 8 locations are available for both the sequential and the
interleaved burst types.
BURST TYPE
Accesses within a given burst may be programmed to be either sequential or interleaved.
CAS LATENCY
The CAS latency is the delay between the registration of a READ command and the availability of the first piece of output data. If a READ command is registered at a clock edge n and the latency is 3 clocks, the first data element will be
valid at n + 2tCK + tAC. If a READ command is registered at a clock edge n and the latency is 2 clocks, the first data
element will be valid at n + tCK + tAC.
Rev 1.2 / Jun. 2008
53
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
Extended Mode Register
The Extended Mode Register contains the specific features of self refresh operation of the Mobile DDR SDRAM.
The Extended Mode Register is programmed via the MODE REGISTER SET command (with BA1=1 and BA0=0) and
will retain the stored information until it is reprogrammed, the device is put in Deep Power-Down mode, or the device
loses power. The Extended Mode Register should be loaded when all Banks are idle and no bursts are in progress, and
subsequent operation should only be initiated after tMRD. Violating these requirements will result in unspecified operation.
The Extended Mode Register is written by asserting low on CS, RAS, CAS, WE and high on BA0. The state of address
pins A0 ~ A13 (or A12 which depends on page size) and BA1 in the same cycle as CS, RAS, CAS and WE going low are
written in the extended mode register. The Extended Mode Register must be loaded when all banks are idle and no
bursts are in progress, and the controller must wait the specified time before initiating any subsequent operation. Violating either of these requirements will result in unspecified operation.
This register includes the selection of partial array to be refreshed (full array, half array, quarter array, etc.). The
extended mode register set must be done before any activate command after the power up sequence. Any contents of
the mode register be altered by re-programming the mode register through the execution of extended mode register
set command.
PARTIAL ARRAY SELF REFRESH (PASR)
With PASR, the self refresh may be restricted to a variable portion of the total array. The whole array (default), 1/2
array, 1/4 array, 1/8 array or 1/16 array could be selected.
DRIVE STRENGTH (DS)
The drive strength could be set to full or half via address bits A5 and A6. The half drive strength is intended for lighter
loads or point-to-point environments.
Rev 1.2 / Jun. 2008
54
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
Status Register Read
The Status Register contains the specific die information such as density, device type, data bus width, refresh rate,
revision ID and manufacturers. The Status Register is only for READ. Below figure is Status Register Read Timing Diagram.
To read out the Status Register values, BA[1:0] set to 01b and A[13:0] set to all 0 with MRS command followed by
Read command with that BA[1:0] and A[13:0] are Don’t care. If the page size is 4KByte, A[12:0] are provided.
tRP
tCK
tSRC
tSRR
CLK
CLK
CMD
CMD
NOP
MRS
NOP
READ
NOP
NOP
NOP
CMD
PRE All or PRE
BA[1:0]
01
Add
0
CL = 3
DQS
DQ[15:0]
Register
Value Out
Don’t care
Note)
1. SRR can only be issued after power-up sequence is complete.
2. SRR can only be issued with all banks precharged.
3. SRR CL is unchanged from value in the mode register.
4. SRR BL is fixed at 2.
5. tSRR = 2 CLK (min)
6. tSRC = CL + 1. (min time between READ to next valid command)
7. No commands other than NOP and DESELECT are allowed between the SRR and the READ.
Rev 1.2 / Jun. 2008
55
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
POWER DOWN
Power down occurs if CKE is set low coincident with Device Deselect or NOP command and when no accesses are in
progress. If power down occurs when all banks are idle, it is Precharge Power Down.
If Power down occurs when one or more banks are Active, it is referred to as Active power down. The device cannot
stay in this mode for longer than the refresh requirements of the device, without losing data. The power down state is
exited by setting CKE high while issuing a Device Deselect or NOP command.
A valid command can be issued after tXP. For Clock stop during power down mode, please refer to the Clock Stop subsection in Operation section of this datasheet.
NOTE: This case shows CKE low coincident with NO OPERATION.
Alternately POWER DOWN entry can be achieved with CKE low coincident with Device DESELECT.
DEEP POWER DOWN
The Deep Power Down (DPD) mode enables very low standby currents. All internal voltage generators inside the
Mobile DDR SDRAM are stopped and all memory data is lost in this mode.
All the information in the Mode Register and the Extended Mode Register is lost. Next Figure, DEEP POWER DOWN
COMMAND shows the DEEP POWER DOWN command All banks must be in idle state with no activity on the data bus
prior to entering the DPD mode. While in this state, CKE must be held in a constant low state.
To exit the DPD mode, CKE is taken high after the clock is stable and NOP command must be maintained for at least
200 us. After 200 us a complete re-initialization routing is required following steps 4 through 11 as defined in POWERUP and INITIALIZATION SEQUENCES. DPD is an optional feature, so please contact Hynix office for DPD feature.
The below figure shows in case of 2KByte page size. If the page size is 4KByte, A0~A12 are provided.
CLK
CLK
CLK
CLK
CKE
CKE
CS
CS
RAS
RAS
CAS
CAS
WE
WE
A0~A13
A0~A13
BA0, BA1
BA0, BA1
Don't Care
POWER-DOWN ENTRY COMMAND
Rev 1.2 / Jun. 2008
Don't Care
DEEP POWER DOWN ENTRY COMMAND
56
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
Mobile DDR SDRAM Deep Power Down Entry and Exit
Before entering deep power down the DRAM must be in an all banks idle state with no activity on the data bus. Upon
entering deep power down all data will be lost. While in deep power down CKE must be held in a constant low state.
Upon exiting deep power down NOP command must be maintained for 200us. After 200us a complete initialization
routine is required following steps 4 through 11 as defined in POWER-UP and INITIALIZATION SEQUENCES.
T0
T1
Ta01
Ta1
Tb1
CK
CK
CKE
COM
tCH
tIS
tIH
tIS
tIH
NOP
tCK
tCL
tIS
tIS
DPD4
VALID5
NOP
tIS
ADD
tIH
VALID
DQS
DQ
DM
tRP2
T=200us3
Deep Power Down Mode
Exit Deep Power Down Mode
DON'T CARE
Mobile DDR SDRAM Deep Power-Down Entry and Exit
Note:
1. Clock must be stable before exiting deep power down mode. That is, the clock must be cycling within specifications by Ta0.
2. Device must be in the all banks idle state prior to entering Deep Power Down mode.
3. 200us is required before any command can be applied upon exiting DPD.
4. DPD = Deep Power Down command.
5. Upon exiting Deep Power Down a precharge all command must be issued followed by two auto refresh commands and a load
mode register sequence.
Rev 1.2 / Jun. 2008
57
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
CAS LATENCY DEFINITION
CAS latency definition of Mobile DDR SDRAM must be must be loaded when all banks are idle, and the controller must
wait the specified time before initiating the subsequent operation.
CAS latency definition: with CL = 3 the first data element is valid at (2 * tCK + tAC) after the clock at which the READ
command was registered (See Figure 2)
T0
T1
Read
NOP
T2
T2n
T3
T3n
T4
T4n
T5
T5n
T6
CK
CK
CMD
NOP
NOP
NOP
NOP
NOP
CL = 3
tDQSCK
tDQSCK
tRPST
tLZ
tRPRE
DQS
tDQSQ
All DQ values,
collectively2
tAC
T2
T2n
T3
T3n
T4
T4n
T5
T5n
tLZ
CAS LATENCY DEFINITION
NOTE
1. DQ transitioning after DQS transition define tDQSQ window.
2. All DQ must transition by tDQSQ after DQS transitions, regardless of tAC.
3. tAC is the DQ output window relative to CK, and is the long term component of DQ skew.
Rev 1.2 / Jun. 2008
58
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
Clock Stop Mode
Clock stop mode is a feature supported by Mobile DDR SDRAM devices. It reduces clock-related power consumption
during idle periods of the device.
Conditions: the Mobile DDR SDRAM supports clock stop in case:
● The last access command (ACTIVE, READ, WRITE, PRECHARGE, AUTO REFRESH or MODE REGISTER SET) has
executed to completion, including any data-out during read bursts; the number of required clock pulses per access
command depends on the device's AC timing parameters and the clock frequency;
● The related timing condition (tRCD, tWR, tRP, tRFC, tMRD) has been met;
● CKE is held HIGH.
When all conditions have been met, the device is either in ''idle'' or ''row active'' state, and clock stop mode may be
entered with CK held LOW and CK held HIGH. Clock stop mode is exited when the clock is restarted. NOPs command
have to be issued for at least one clock cycle before the next access command may be applied. Additional clock pulses
might be required depending on the system characteristics.
Figure1 illustrates the clock stop mode:
● Initially the device is in clock stop mode;
● The clock is restarted with the rising edge of T0 and a NOP on the command inputs;
● With T1 a valid access command is latched; this command is followed by NOP commands in order to allow for clock
stop as soon as this access command has completed;
● Tn is the last clock pulse required by the access command latched with T1.
● The timing condition of this access command is met with the completion of Tn; therefore Tn is the last clock pulse
required by this command and the clock is then stopped.
T0
CK
T1
Tn
T2
CK
CKE
Timing Condition
CMD
NOP
ADD
CMD
NOP
NOP
NOP
Valid
(High-Z)
DQ,
DQS
Clock
Stopped
Exit Clock
Stop Mode
Valid
Command
Enter Clock
Stop Mode
Don't Care
Clock Stop Mode
Rev 1.2 / Jun. 2008
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Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
Data mask1,2)
Mobile DDR SDRAM uses a DQ write mask enable signal (DM) which masks write data.
Data masking is only available in the write cycle for Mobile DDR SDRAM. Data masking is available during write, but
data masking during read is not available.
DM command masks burst write data with reference to data strobe signal and it is not related with read data. DM command can be initiated at both the rising edge and the falling edge of the DQS. DM latency for write operation is zero.
For x32 data I/O, Mobile DDR SDRAM is equipped with DM0, DM1, DM2 and DM3 which control DQ0~DQ7,
DQ8~DQ15, DQ16~DQ23 and DQ24~DQ31 respectively.
Note:
1) Mobile SDR SDRAM can mask both read and write data, but the read mask is not supported by Mobile DDR SDRAM.
2) Differences in Functions and Specifications (next table)
Item
Data mask
Mobile DDR SDRAM
Mobile SDR SDRAM
Write mask/Read mask
Write mask only
CK
CK
WRITE
CMD
WRITE
tDQSS
tDS
tDH
DM
DQS
tDQSL
Hi-Z
Data
Masking
Data
Masking
Hi-Z
DQ
tDQSH
D0
D1
D3
D0
D1
D3
Data Masking (Write cycle: BL=4)
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Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
POWER-UP AND INITIALIZATION SEQUENCES
Mobile DDR SDRAM must be powered up and initialized in a predefined manner. Operations procedures other thank
those specified may result in undefined operation. If there is any interruption to the device power, the initialization
routine should be followed. The steps to be followed for device initialization are listed below.
● Step1: Provide power, the device core power (VDD) and the device I/O power (VDDQ) must be brought up simulta-
neously to prevent device latch-up. Although not required, it is recommended that VDD and VDDQ are from
the same power source. Also assert and hold CLOCK ENABLE (CKE) to a LVCMOS logic high level.
● Step 2: Once the system has established consistent device power and CKE is driven high, it is safe to apply stable
clock.
● Step 3: There must be at least 200us of valid clocks before any command may be given to the DRAM. During this
time NOP or DESELECT commands must be issued on the command bus.
● Step 4: Issue a PRECHARGE ALL command.
● Step 5: Provide NOPs or DESELECT commands for at least tRP time.
● Step 6: Issue an AUTO REFRESH command followed by NOPs or DESELECT command for at least tRFC time. Issue
the second AUTO REFRESH command followed by NOPs or DESELECT command for at least tRFC time.
Note as part of the initialization sequence there must be two auto refresh commands issued. The typical
flow is to issue them at Step 6, but they may also be issued between steps 10 and 11.
● Step 7: Using the MRS command, load the base mode register. Set the desired operating modes.
● Step 8: Provide NOPs or DESELECT commands for at least tMRD time.
● Step 9: Using the MRS command, program the extended mode register for the desired operating modes. Note the
order of the base and extended mode register programming is not important.
● Step 10: Provide NOP or DESELCT commands for at least tMRD time.
● Step 11: The DRAM has been properly initialized and is ready for any valid command.
Rev 1.2 / Jun. 2008
61
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
The Initialization flow sequence is below.
VDD
VDDQ
T=200usec
tCK
tRFC
tRFC
tRP
tMRD
tMRD
/CLK
CLK
tCH
tCL
CKE
CMD
NOP
PRE
ARF
ARF
MRS
ACT
CODE
RA
CODE
RA
BA0=L
BA1=L
BA0=L
BA1=H
BA
Load
Mode
Register
Load
Extended
Mode
Register
MRS
tIS
tIH
CODE
ADDR
tIS
ALL
BANKS
A10
tIH
CODE
tIS
tIS tIH
BA0,
BA1
tIH
DM
DQ,
DQS
High-Z
VDD/VDDQ
Powered up
CLOCK stable
Precharge
All
Auto
Refresh
Auto
Refresh
DON'T CARE
Initialization Waveform Sequence
Rev 1.2 / Jun. 2008
62
Mobile DDR SDRAM 1Gbit (32M x 32bit)
H5MS1G22MFP Series / H5MS1G32MFP Series
PACKAGE INFORMATION
90 Ball 0.8mm pitch 8mm FBGA [8.0 x 13.0 mm2, t=1.0mm max]
A1 INDEX MARK
8.00 Typ.
0.8Typ.
0.8
Unit [mm]
0.90.
11.2 Typ.
13.0 Typ.
0.80 Typ.
Bottom
View
0.45
+/- 0.05
0.34
+/- 0.05
0.90
0.80
6.40 Typ.
1.00 max
Rev 1.2 / Jun. 2008
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