AEROFLEX ACT-D1M96S

ACT-D1M96S High Speed
96 MegaBit 3.3V Synchronous DRAM
Multichip Module
Features
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6 Low Power Micron 1M X 16 Synchronous Dynamic
Random Access Memory Chips in one MCM
User Configureable as "2" Independent 512K X 48 X 2
Banks
High-Speed, Low-Noise, Low-Voltage TTL (LVTTL)
Interface
3.3-V Power Supply (±10% Tolerance)
Separate Logic and Output Driver Power Pins
Two Banks for On-Chip Interleaving (Gapless
Accesses)
Up to 50-MHz Data Rates
CAS Latency (CL) Programmable to 2 Cycles From
Column-Address Entry
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Burst Length Programmable to 4 or 8
Pipeline Architecture
Cycle-by-Cycle DQ-Bus Write Mask Capability With
Upper and Lower Byte Control
Chip Select and Clock Enable for Enhanced-System
Interfacing
Serial Burst Sequence
Auto-Refresh
4K Refresh (Total for Both Banks)
200-lead CQFP, cavity-up package
General Description
The ACT-D1M96S device is a high-speed 96Mbit synchronous dynamic random access memory (SDRAM)
organized as 2 independent 512K X 48 X 2 banks. All inputs and outputs of the ACT-D1M96S are compatible
with the LVTTL interface. All inputs and outputs are synchronized with the CLK input to simplify system design
and enhance use with high-speed microprocessors and caches.
BLOCK DIAGRAM
S
E
C
T
I
O
N
A
CS1
CLK1
CKE1
DQMU1
DQML1
RAS1
CAS1
WE1
A0-A11
12
1M X 16 or
512K X 16 X 2 Banks
BANK T
1M X 16 or
512K X 16 X 2 Banks
1M X 16 or
512K X 16 X 2 Banks
BANK B
16
DQ 0-15
S
E
C
T
I
O
N
B
CS2
CLK2
CKE2
DQMU2
DQML2
RAS2
CAS2
WE2
BA0-BA11
BANK T
16
DQ 16-31
16
DQ 32-47
12
1M X 16 or
512K X 16 X 2 Banks
1M X 16 or
512K X 16 X 2 Banks
1M X 16 or
512K X 16 X 2 Banks
BANK B
16
DQ48-63
16
DQ 64-79
16
DQ80-95
eroflex Circuit Technology - Advanced Multichip Modules © SCD3369-1 REV C 5/31/00
Operation
complete
(as
determined
by
the
programmed-burst length), the outputs are in the
high-impedance state until the next read access
is initiated.
All inputs to the ACT-D1M96S SDRAM are
latched on the rising edge of the system
(synchronous) clock. The outputs, DQ0-DQ95,
also are referenced to the rising edge of CLK.
The ACT-D1M96S has two banks in each section
that are accessed independently. A bank must
be activated before it can be accessed (read from
or written to). Refresh cycles refresh both banks
alternately.
Five basic commands or functions control most
operations of the ACT-D1M96S:
● Bank activate/row-address entry
● Column-address entry/write operation
● Column-address entry/read operation
● Bank deactivate
● Auto-refresh
Additionally, operations can be controlled by
three methods:
● Chip select (CS) to select/ deselect the
devices
● DQMx to enable/mask the DQ signals on a
cycle-by-cycle basis
● CKE to suspend (or gate) the CLK input
The device contains a mode register that must
be programmed for proper operation. Table 1
through Table 3 show the various operations that
are available on the ACT-D1M96S. These truth
tables identify the command and/or operations
and their respective mnemonics. Each truth table
is followed by a legend that explains the
abbreviated symbols. An access operation refers
to any read or write command in progress at cycle
n. Access operations include the cycle upon
which the read or write command is entered and
all subsequent cycles through the completion of
the access burst.
Latency
The beginning data-out cycle of a read burst can
be programmed to occur two CLK cycles after the
read command. The delay between the READ
command and the beginning of the output burst
is known as CAS latency. After the initial output
cycle begins, the data burst occurs at the CLK
frequency without any intervening gaps.
There is no latency for data-in cycles (write
latency). The first data-in cycle of a write burst is
entered at the same rising edge of CLK on which
the WRT command is entered. The write latency
is fixed and is not determined by the
mode-register contents.
Two-Bank Operation
The ACT-D1M96S contains two independent
banks that can be accessed individually or in an
interleaved fashion. Each bank must be activated
with a row address before it can be accessed.
Each bank then must be deactivated before it can
be activated again with a new row address. The
bank-activate/row-address-entry
command
(ACTV) is entered by holding RAS low, CAS high,
WE high, and A11 valid on the rising edge of CLK.
A bank can be deactivated either automatically
during a READ-P or a WRT-P command or by
use of the deactivate-bank (DEAC) command.
Both banks can be deactivated at once by use of
the DCAB command (see Table 1 and the section
on bank deactivation).
Two-Bank Row-Access Operation
The two-bank feature allows access of
information on random rows at a higher rate of
operation than is possible with a standard DRAM,
by activating one bank with a row address and,
while the data stream is being accessed to/from
that bank, activating the second bank with
another row address. When the data stream to
or from the first bank is complete, the data stream
to or from the second bank can begin without
interruption. After the second bank is activated,
the first bank can be deactivated to allow the
entry of a new row address for the next round of
accesses. In this manner, operation can continue
in an interleaved fashion.
Burst Sequence
All data for the ACT-D1M96S is written or read in
a burst fashion, that is, a single starting address
is entered into the device and then the
ACT-D1M96S internally accesses a sequence of
locations based on that starting address. After
the first access some of the subsequent
accesses can be at preceding as well as
succeeding column addresses, depending on
the starting address entered. This sequence is
programmed to follow a serial burst (see Table 4
and 5). The length of the burst can be
programmed is 4 or 8. After a read burst is
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DQ80-87 and DQMU controls DQ8-15, DQ24-31,
DQ40-47, DQ56-63, DQ72-79, and DQ88-95. The
application of DQMx to a write burst has no
latency (nDID = 0 cycle). During a write burst, if
DQMx is held high on the rising edge of CLK, the
data-input is ignored on that cycle.
Two-Bank Column-Access Operation
The availability of two banks allows the access
of data from random starting columns between
banks at a higher rate of operation. After
activating each bank with a row address (ACTV
command), A11 can be used to alternate READ
or WRT commands between the banks to
provide gapless accesses at the CLK frequency,
provided all specified timing requirements are
met.
CLK-Suspend
For normal device operation, CKE should be held
high to enable CLK. If CKE goes low during the
execution of a READ (READ-P) or WRT
(WRT-P) operation, the DQ bus occurring at the
immediate next rising edge of CLK is frozen at its
current state, and no further inputs are accepted
until CKE returns high. This is known as a
CLK-suspend operation, and its execution
indicates a HOLD command. The device
resumes operation from the point when it was
placed in suspension, beginning with the second
rising edge of CLK after CKE returns high.
Bank Deactivation (Precharge)
Both banks can be deactivated (placed in
precharge) simultaneously by using the DCAB
command. A single bank can be deactivated by
using the DEAC command. The DEAC command
is entered identically to the DCAB command
except that A10 must be low and A11 used to
select the bank to be precharged as shown in
Table 1. A bank can be deactivated automatically
by using A10 during a read or write command. If
A10 is held high during the entry of a read or write
command, the accessed bank (selected by A11)
is deactivated automatically upon completion of
the access burst. If A10 is held low during the
entry of a read or write command, that bank
remains active following the burst. The read and
write commands with automatic deactivation are
signified as READ-P and WRT-P.
Setting the Mode Register
The ACT-D1M96S contains a mode register in
each chip that must be programmed with the
CAS latency, the burst type, and the burst length.
This is accomplished by executing a
mode-register set (MRS) command with the
information entered on the address lines A0-A9.
A logic 0 must be entered on A7 and A8, but A10
and A11 are don’t-care entries for the
ACT-D1M96S. When A9 = 0, the write-burst
length is defined by A0-A2. Figure 1 shows the
valid combinations for a successful MRS
command. Only valid addresses allow the mode
register to be changed. If the addresses are not
valid, the previous contents of the mode register
remain unaffected. The MRS command is
executed by holding RAS, CAS, and WE low and
the input mode word valid on A0-A9 on the rising
edge of CLK (see Table 1). The MRS command
can be executed only when both banks are
deactivated.
Chip Select (CS)
CS can be used to select or deselect the
ACT-D1M96S for command entry, which might
be
required
for
multiple-memory-device
decoding. If CS is held high on the rising edge of
CLK (DESL command), the device does not
respond to RAS, CAS, or WE until the device is
selected again by holding CS low on the rising
edge of CLK. Any other valid command can be
entered simultaneously on the same rising CLK
edge of the select operation. The device can be
selected/deselected on a cycle-by-cycle basis
(see Table 1 and Table 2). The use of CS does
not affect an access burst that is in progress; the
DESL command can only restrict RAS, CAS, and
WE input to the ACT-D1M96S.
Refresh
The ACT-D1M96S must be refreshed at intervals
not exceeding tREF (see timing requirements) or
data cannot be retained. Refresh can be
accomplished by performing a read or write
access to every row in both banks or 4096
auto-refresh (REFR) commands. Regardless of
the method used, refresh must be accomplished
before tREF has expired.
Data Mask
The mask command or its opposite, the data-in
enable (ENBL) command (see Table 3), is
performed on a cycle-by-cycle basis to gate any
data cycle within a write burst. DQML controls
DQ0-7, DQ16-23, DQ32-39, DQ48-55, DQ64-71,
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Auto Refresh (REFR)
Before performing a REFR, both banks of all 6 chips must be deactivated (placed in precharge). To
enter a REFR command, RAS and CAS must be low and WE must be high upon the rising edge of
CLK (see Table 1). The refresh address is generated internally such that, after 4096 REFR commands,
both banks of all 6 chips of the ACT-D1M96S have been refreshed. The external address and bank
select (A11) are ignored. The execution of a REFR command automatically deactivates both banks
upon completion of the internal auto-refresh cycle, allowing consecutive REFR-only commands to be
executed, if desired, without any intervening DEAC commands. The REFR commands do not
necessarily have to be consecutive, but all 4096 must be completed before tREF expires.
Power Up Initialization
Device initialization should be performed after a power up to the full VCC level. After power is
established, a 200µs interval is required (with no inputs other than CLK). After this interval, both banks
of the device must be deactivated. Eight REFR commands must be performed, and the mode register
must be set to complete the device initialization.
General Information for AC Timing Measurements
All specifications referring to READ commands are also valid for READ-P commands unless otherwise
noted. All specifications referring to WRT commands are also valid for WRT-P commands unless
otherwise noted. All specifications referring to consecutive commands are specified as consecutive
commands for the same bank unless otherwise noted.
Note: For all pin references in the General Description, both sections apply. For example, A11 signals
also apply for BA11 signals.
For additional Detail Information regarding the operation of the individual chip (MT48LC1M16A1) see
Micron’s 524,288-WORD BY 16-BIT BY 2-BANK SYNCHRONOUS DYNAMIC RANDOM-ACCESS
MEMORY Datasheet Revision 8/99 or contact the Aeroflex Sales Department.
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A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
BA11
BA10
BA9
BA8
BA7
BA6
BA5
BA4
BA3
BA2
BA1
BA0
0
0
Reserved
0 = Serial
Register Bits
Register
Bit A9/
BA9
Write Burst
Length
A2 - A0
0
BA2 - BA0
†
Register Bits
A6
A5
A4
BA6
BA5
BA4
0
1
0
CAS Latency
†
Burst Length
A2
A1
A0
BA2
BA1
BA0
0
1
0
4
0
1
1
8
2
NOTES:
† All other combinations are reserved.
Figure 1 – Mode Register Programming
3.3 V
AC Test Conditions
1200 Ω
Output
10 pF
870 Ω
Parameter
Input Pulse Level
Input Rise and Fall
Input and Output Timing Reference
Typical
0.4 – 2.4
5
1.5
Units
V
ns
V
Figure 2 – LVTTL-Load Circuit
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Table 1 — Basic Command Truth Table
State of
Bank(s)
Command ‡
T = deac
Mode register set
B = deac
†
CS1
RAS1
CAS1
WE1
A11
A10
A9-A0
CS2
RAS2
CAS2
WE2
BA11
BA10
BA9-BA0
L
L
L
L
X
X
A8,BA8,A7,BA7 = 0
Mnemonic
A9,BA9 = V
MRS
A6-A0,BA6-BA0 = V
Bank deactivate (precharge)
X
L
L
H
L
BS
L
X
DEAC
Deactivate all banks (precharge)
X
L
L
H
L
X
H
X
DCAB
Bank activate/row-address entry
SB = deac
L
L
H
H
BS
V
V
ACTV
Column-address entry/write
operation
SB = actv
L
H
L
L
BS
L
V
WRT
Column-address entry/write
operation with auto-deactivate
SB = actv
L
H
L
L
BS
H
V
WRT-P
Column-address entry/read
operation
SB = actv
L
H
L
H
BS
L
V
READ
Column-address entry/read
operation with auto-deactivate
SB = actv
L
H
L
H
BS
H
V
READ-P
Burst stop
SB = actv
L
H
H
L
X
X
X
STOP
No operation
X
L
H
H
H
X
X
X
NOOP
Control-input inhibit/no operation
X
H
X
X
X
X
X
X
DESL
L
L
L
H
X
X
X
REFR
Auto refresh
T = deac
§
B = deac
NOTES:
† For execution of these commands on cycle n:
-CKE (n-1) must be high, or
-tCES and nCLE must be satisfied for clock-suspend exit.
DQMx(n) is a don’t care.
‡ All other unlisted commands are considered vendor-reserved commands or illegal commands.
§ Auto-refresh entry requires that all banks be deactivated or in an idle state prior to the command entry.
Legend:
n = CLK cycle number, L = Logic low, H = Logic high, X = Don’t care, either logic low or logic high, V = Valid, T = Bank T, B = Bank B, actv = Activated, deac = Deactivated, BS
= Logic high to select bank T; logic low to select bank B, SB = Bank selected by A11 at cycle n
Table 2 — Clock Enable (CKE) Command Truth Table †
Command
‡
CLK suspend on cycle (n + 1)
CLK suspend exit on cycle (n + 1)
State of Bank(s)
CKE
(n-1)
CKE
(n)
CS
RAS
CAS
WE
(n)
(n)
(n)
(n)
H
L
X
X
X
X
HOLD
L
H
X
X
X
X
—
T = access operation¶
B = access operation¶
T = access operation¶
B = access operation¶
Mnemonic
NOTES:
† For execution of these commands, A0-A11 (n) and DQMx (n) are don’t cares.
‡ All other unlisted commands are considered vendor-reserved commands or illegal commands.
¶ A bank is no longer in an access operation one cycle after the last data-out cycle of a read operation, and two cycles after the last data-in cycle
of a write operation. Neither the PDE nor the HOLD command is allowed on the cycle immediately following the last data-in cycle of a write operation.
Legend:
n = CLK cycle number, L = Logic low, H = Logic high, X = Don’t care, either logic low or logic high, T = Bank T, B = Bank B
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Table 3 — Data-Mask (DQM) Command Truth Table
Command
‡
DQML
§
State of Bank(s)
Data In (n)
Data Out
(n+2)
Mnemonic
X
N/A
Hi-Z
—
X
N/A
Hi-Z
—
L
V
N/A
ENBL
H
M
N/A
MASK
L
N/A
V
ENBL
DQMU
(n)
T = deac and
—
B = deac
†
T = actv and
—
B = actv
(no access operation) ¶
T = Write or
Data-in enable
B = Write
T = Write or
Data-in mask
B = Write
T = Write or
Data-out enable
B = Write
NOTES:
† For execution of these commands on cycle n:
- CKE (n) must be high, or
-t CES and n CLE must be satisfied for clock suspend exit.
CS(n), RAS(n), CAS(n), WE(n), and A0-A11 are don’t cares.
‡ All other unlisted commands are considered vendor-reserved commands or illegal commands.
§ DQML controlsDQ0-7, DQ16-23, DQ32-39, DQ48-55, DQ64-71, DQ80-87 and DQMU controls DQ8-15, DQ24-31, DQ40-47, DQ56-63, DQ72-79, and DQ88-95
¶ A bank is no longer in an access operation one cycle after the last data-out cycle of a read operation, and two cycles after the last data-in cycle
of a write operation. Neither the PDE nor the HOLD command is allowed on the cycle immediately following the last data-in cycle of a write operation.
Legend:
n = CLK cycle number, L = Logic low, H = Logic high, X = Don’t care, either logic low or logic high, V = Valid, M = Masked input data, N/A = Not applicable,
T = Bank T, B = Bank B, actv = Activated, deac = Deactivated, write = Activated and accepting data inputs on cycle n, read = Activated and delivering data outputs on cycle (n + 2)
.
Table 4 — Serial 4-Word Burst Sequences
INTERNAL COLUMN ADDRESS A1-A0, BA1-BA0
DECIMAL
BINARY
START
2ND
3RD
4TH
START
2ND
3RD
4TH
0
1
2
3
00
01
10
11
1
2
3
0
01
10
11
00
2
3
0
1
10
11
00
01
3
0
1
2
11
00
01
10
Table 5 – Serial 8-Word Burst Sequences
INTERNAL COLUMN ADDRESS A2-A0, BA2-BA0
DECIMAL
BINARY
START
2ND
3RD
4TH
5TH
6TH
7TH
8TH
START
2ND
3RD
4TH
5TH
6TH
7TH
8TH
0
1
2
3
4
5
6
7
000
001
010
011
100
101
110
111
1
2
3
4
5
6
7
0
001
010
011
100
101
110
111
000
2
3
4
5
6
7
0
1
010
011
100
101
110
111
000
001
3
4
5
6
7
0
1
2
011
100
101
110
111
000
001
010
4
5
6
7
0
1
2
3
100
101
110
111
000
001
010
011
5
6
7
0
1
2
3
4
101
110
111
000
001
010
011
100
6
7
0
1
2
3
4
5
110
111
000
001
010
011
100
101
7
0
1
2
3
4
5
6
111
000
001
010
011
100
101
110
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Absolute Maximum Ratings1
Symbol
Rating
Range
Units
VCC
Supply Voltage
-0.5 to 4.6
V
VCCQ
Supply Voltage range for output drivers
-0.5 to 4.6
V
Voltage range on any pin with respect to VSS
-0.5 to 4.6
V
-55 to +125
°C
-65 to +150
°C
Short-Circuit Output Current
50
mA
Power Dissipation
4.2
W
VRANGE
TBIAS
Case Temperature under Bias
TSTG
Storage Temperature
ISHORT
PW
2
1. Stresses above those listed under "Absolute Maximums Rating" may cause permanent damage to the device. This is a stress rating only and functional operation of
the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
2. The temperature rise of θjc is negligible due to the low duty cycle during testing.
Recommended Operating Conditions
Symbol
Parameter
Minimum
Typical
Maximum
Units
VCC
Supply Voltage
3
3.3
3.6
V
VCCQ
Supply Voltage range for output drivers
3
3.3
3.6
V
VSS
Supply Voltage
0
V
VSSQ
Supply Voltage range for output drivers
0
V
VIH
Input High Voltage
VIL
Input Low Voltage 1
TC
Operating Temperature (Case)
2
2
VCC + 0.3
V
-0.3
0.8
V
-55
+110
°C
1. VIL Minimum = 1.5Vac (Pulsewidth < 5ns)
2. The temperature rise of θjc is negligible due to the low duty cycle during testing.
DC Characteristics
(VCC = 3.3V ±10%; Tc =-55°C to +110°C, See Notes 1 & 5)
Parameter
Symbol
Conditions
Min
Output Low Voltage
VOL
IOL = 2mA
Output High Voltage
VOH
IOH = -2mA
2.4
Max
Units
0.4
V
V
Input current (Leakage)
II
0V < VI < VCC + 0.3V, All other pins = 0V to VCC
-10
+10
µA
Output current (Leakage)
IO
0V < VO < VCC + 0.3V, Output disabled
-10
+10
µA
Precharge standby
current in
non-power-down mode
ICC2N
CKE > VIH MIN, tCK = 20ns (See note 2)
180
mA
ICC2NS
CKE > VIH MIN, CLK < VIL MAX, tCK = ∞
(See note 3)
40
mA
1. All specifications apply to the device after power- up initialization. All control and address inputs must be stable and valid.
2. Control, DQ, and address inputs change state only once every 40 ns.
3. Control, DQ, and address inputs do not change (stable).
4. All ICC parameters measured with VCC, not VCCQ.
5. The temperature rise of θjc is negligible due to the low duty cycle during testing.
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Capacitance
†
(f = 1MHz, Tc = 25°C)
Symbol
Ci(S)
Ci(AC)
Ci(E)
CO
†
Parameter
Min
Max
Units
Input Capacitance, CLK Input
50
pF
Input Capacitance, Address and Control Inputs: A0-A11, CS, DQMx, RAS, CAS, WE
40
pF
Input Capacitance, CKE Input
50
pF
Output Capacitance
20
pF
Parameters Guaranteed but not tested
†‡
AC Timing
(Vcc = 3.3V ±0.3V, Tc = -55°C to +110°C, See Note 4)
Parameter
Symbol
Cycle time, CLK
tCK2
Pulse duration, CLK high
Test Conditions
Min
Max
Units
20
ns
tCH
6
ns
Pulse duration, CLK low
tCL
6
ns
Access time, CLK high to data out (see Note 1)
tAC2
Hold time, CLK high to data out
tOH
1
ns
Setup time, address, control, and data input
tIS
5
ns
Hold time, address, control, and data input
tIH
3
ns
Delay time, ACTV command to DEAC or DCAB
command
tRAS
72
Delay time, ACTV or REFR to ACTV, MRS or
REFR command
tRC
108
ns
Delay time ACTV command to READ, READ-P,
WRT, or WRT-P command (see Note 2)
tRCD
30
ns
Delay time, DEAC or DCAB command to ACTV,
MRS or REFR command
tRP
36
ns
Delay time, ACTV command in one bank to
ACTV command in the other bank
tRRD
24
ns
Delay time, MRS command to ACTV, MRS or
REFR command
tRSA
30
ns
Final data out of READ-P operation to ACTV,
MRS or REFR command
tAPR
Final data in of WRT-P operation to ACTV, MRS
or REFR command
tAPW
CAS latency = 2
13
CAS latency = 2
100000
ns
ns
Min
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t RP - (CL -1) * tCK
ns
(see Note 3)
9
60
ns
SCD3369-1 REV C 5/31/00 Plainview NY (516) 694-6700
†‡ (cont.)
AC Timing
(Vcc = 3.3V ±0.3V, Tc = -55°C to +110°C, See Note 4)
Parameter
Symbol
Delay time, final data in of WRT operation to
DEAC or DCAB command
tWR
Refresh interval
tREF
Delay time, CS low or high to input enabled or
inhibited
nCDD
Delay time, CKE high or low to CLK enabled or
disabled
Test Conditions
Min
Max
20
Units
ns
50
ms
0
0
cycle
nCLE
1
1
cycle
Delay time, final data in of WRT operation to
READ, READ-P, WRT, or WRT-P
nCWL
1
Delay time, ENBL or MASK command to
enabled or masked data in
nDID
0
0
cycle
Delay time, ENBL or MASK command to
enabled or masked data out
nDOD
2
2
cycle
Delay time, DEAC or DCAB, command to DQ in
high-impedance state
nHZP2
2
cycle
Delay time, WRT command to first data in
nWCD
0
cycle
Delay time, STOP command to READ or WRT
command
nBSD
2
cycle
CAS latency = 2
0
cycle
† See Figure 2 - LVTTL Load Circuit for load circuits.
‡ All references are made to the rising transition of CLK, unless otherwise noted.
NOTES:
1. tAC is referenced from the rising transition of CLK that is previous to the data-out cycle. For example, the first data out tAC is
referenced from the rising transition of CLK within the following cycle: CAS latency minus one cycle after the READ command. An access time is measured
at output reference level 1.5 V.
2. For read or write operations with automatic deactivate, tRCD must be set to satisfy minimum tRAS .
3. CL = CAS Latency.
4. The temperature rise of θjc is negligible due to the low duty cycle during testing.
Aeroflex Circuit Technology
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SCD3369-1 REV C 5/31/00 Plainview NY (516) 694-6700
tCK
tCH
CLK
tT
tCL
tT
ti S
ti H
DQ, A0-A11, CS, RAS,
CAS, WE, DQMx, CKE
tT
ti H
tiS, tCESP
DQ, A0-A11, CS, RAS,
CAS, WE, DQMx, CKE
tT
Figure 3 – Input-Attribute Parameters
CAS latency
CLK
ACTV
Command
tHZ
tAC
READ
Command
tLZ
tOH
DQ
Figure 4 – Output Parameters
DESL
nCDD
Command Disable
ACTV
tRAS
DEAC, DCAB
ACTV, REFR
tRC
ACTV (same bank), MRS, REFR
ACTV
tRCD
READ, READ-P, WRT, WRT-P
DEAC, DCAB
tRP
ACTV
tRRD
ACTV (Different Bank)
MRS
tRSA
ACTV, MRS, REFR
ACTV, MRS, REFR
Figure 5 – Command-to-Command Parameters
Aeroflex Circuit Technology
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SCD3369-1 REV C 5/31/00 Plainview NY (516) 694-6700
Package Information – "F20" – CQFP 200 Leads
1.464 (37.186) SQ
1.436 (36.474) SQ
150
101
100
.028 (.711)
.022 (.559)
151
.010R MIN
.015 (.381)
.009 (.229)
.010R MIN
.130 (3.302)
MAX
1.230 (31.242)
1.220 (30.988)
49 Spaces at .025
(49 Spaces at .635)
0°±5°
.100 (2.540)
.080 (2.032)
.012 (.304)
.009 (.229)
.035 (.889)
.025 (.635)
Detail "A"
51
200
Pin 1 Chamfer
1
50
.045 (1.143)
REF
.1.290 (32.766) SQ
REF
.008 (.202)
.005 (.127)
Detail "A"
1.664 (42.266)
1.596 (40.538)
.115 (2.921)
MAX
.066 (1.676)
.054 (1.372)
Note: 1. All Dimensions in inches (Millimeters) MAX or Typical where noted.
MIN
Pin Nomenclature
A0-A10
BA0-BA10
Address Inputs
A0-A10, BA0-BA10 Row Addresses
A0-A7, BA0-BA7 Column Addresses
A10, BA10 Automatic-Precharge Select
DQML1,2
DQMU1,2
Data/Input Mask Enables
A11,BA11
Bank Select
RAS1,RAS2
Row-Address Strobe
CAS1,CAS2
Column-Address Strobe
VCC
Power Supply
CKE1,CKE2
Clock Enable
VCCQ
Power Supply for Output Drivers
CLK1,CLK2
System Clock
VSS
Ground
CS1,CS2
Chip Select
VSSQ
Ground for Output Drivers
DQ0-DQ95
SDRAM Data Input/Output
WE1,WE2
Write Enable
Aeroflex Circuit Technology
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SCD3369-1 REV C 5/31/00 Plainview NY (516) 694-6700
ACT-D1M96S CQFP Pinouts – "F20"
PIN
#
FUNCTION
PIN
#
FUNCTION
PIN
#
FUNCTION
PIN
#
FUNCTION
PIN
#
FUNCTION
1
DQ2
41
DQ91
81
DQ67
121
VSSQ
161
DQ30
2
DQ3
42
VSSQ
82
DQ66
122
BA1
162
VSSQ
3
VSSQ
43
DQ92
83
VSS
123
BA2
163
DQ29
4
DQ4
44
DQ93
84
DQ65
124
VCCQ
164
DQ28
5
DQ5
45
VCCQ
85
DQ64
125
BA3
165
VCC
6
VCCQ
46
DQ94
86
VCC
126
A4
166
DQ27
7
DQ6
47
DQ95
87
DQ63
127
VCCQ
167
DQ26
8
DQ7
48
VSSQ
88
DQ62
128
A5
168
VSS
9
VSSQ
49
DQ87
89
VSSQ
129
A6
169
DQ25
10
DQML1
50
DQ86
90
DQ61
130
VSSQ
170
DQ24
11
WE1
51
DQ85
91
DQ60
131
A7
171
VSSQ
12
VSSQ
52
DQ84
92
VSSQ
132
A8
172
CLK1
13
CAS1
53
VSSQ
93
DQ59
133
VSS
173
CKE1
14
RAS1
54
DQ83
94
DQ58
134
A9
174
VCCQ
15
VCC
55
DQ82
95
VCCQ
135
DQMU1
175
DQ23
16
CS1
56
VCCQ
96
DQ57
136
VCC
176
DQ22
17
A11
57
DQ81
97
DQ56
137
DQ40
177
VCCQ
18
VSS
58
DQ80
98
VSSQ
138
DQ41
178
DQ21
19
A10
59
VSSQ
99
DQ48
139
VSSQ
179
DQ20
20
A0
60
DQ79
100
DQ49
140
DQ42
180
VSSQ
21
VSSQ
61
DQ78
101
DQ50
141
DQ43
181
DQ19
22
A1
62
VSSQ
102
DQ51
142
VSSQ
182
DQ18
23
A2
63
DQ77
103
VSSQ
143
DQ44
183
VSS
24
VCCQ
64
DQ76
104
DQ52
144
DQ45
184
DQ17
25
A3
65
VCC
105
DQ53
145
VCCQ
185
DQ16
26
BA4
66
DQ75
106
VCCQ
146
DQ46
186
VCC
27
VCCQ
67
DQ74
107
DQ54
147
DQ47
187
DQ15
28
BA5
68
VSS
108
DQ55
148
VSSQ
188
DQ14
29
BA6
69
DQ73
109
VSSQ
149
DQ39
189
VSSQ
30
VSSQ
70
DQ72
110
DQML2
150
DQ38
190
DQ13
31
BA7
71
VSSQ
111
WE2
151
DQ37
191
DQ12
32
BA8
72
CLK2
112
VSSQ
152
DQ36
192
VSSQ
33
VSS
73
CKE2
113
CAS2
153
VSSQ
193
DQ11
34
BA9
74
VCCQ
114
RAS2
154
DQ35
194
DQ10
35
DQMU2
75
DQ71
115
VCC
155
DQ34
195
VCCQ
36
VCC
76
DQ70
116
CS2
156
VCCQ
196
DQ9
37
DQ88
77
VCCQ
117
BA11
157
DQ33
197
DQ8
38
DQ89
78
DQ69
118
VSS
158
DQ32
198
VSSQ
39
VSSQ
79
DQ68
119
BA10
159
VSSQ
199
DQ0
40
DQ90
80
VSSQ
120
BA0
160
DQ31
200
DQ1
Aeroflex Circuit Technology
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SCD3369-1 REV C 5/31/00 Plainview NY (516) 694-6700
CIRCUIT TECHNOLOGY
Sample Ordering Information
Part Number
Screening
Speed
Package
ACT-D1M96S-020F20C
Commercial Temperature
20 ns
200 Lead CQFP
ACT-D1M96S-020F20T
Extended Temperature
20 ns
200 Lead CQFP
ACT-D1M96S-020F20M
Extended Temperature Screening
20 ns
200 Lead CQFP
Part Number Breakdown
ACT– D 1M 96 S – 020 F20 M
Aeroflex Circuit
Technology
Screening
Memory Type
C = Commercial Temp, 0°C to +70°C
I = Industrial Temp, -40°C to +85°C
T = Extended Temp, -55°C to +110°C
M = Extended Temp, -55°C to +110°C, Screened *
Q = MIL-PRF-38534 Compliant/SMD if applicable
Package Type & Size
D = DRAM
Memory Depth, Locations
Memory Width, Bits
Surface Mount Package
F20 = 1.45" SQ 200 Lead CQFP
Options
S = Syncronous
Memory Speed, ns
* Screened to the individual test methods of MIL-STD-883
Specifications subject to change without notice.
Aeroflex Circuit Technology
35 South Service Road
Plainview New York 11803
www.aeroflex.com/act1.htm
Aeroflex Circuit Technology
Telephone: (516) 694-6700
FAX:
(516) 694-6715
Toll Free Inquiries: (800) 843-1553
E-Mail: [email protected]
14
SCD3369-1 REV C 5/31/00 Plainview NY (516) 694-6700