CYPRESS CY7C1034DV33

CY7C1034DV33
6-Mbit (256K X 24) Static RAM
Features
Functional Description
■
High speed
❐ tAA = 8 ns
The CY7C1034DV33 is a high performance CMOS static RAM
organized as 256K words by 24 bits. This device has an
automatic power down feature that significantly reduces power
consumption when deselected.
■
Low active power
❐ ICC = 225 mA at 8 ns
■
Low CMOS standby power
❐ ISB2 = 25 mA
To write to the device, enable the chip (CE1 LOW, CE2 HIGH,
and CE3 LOW) while forcing the Write Enable (WE) input LOW.
To read from the device, enable the chip by taking CE1 LOW, CE2
HIGH, and CE3 LOW, while forcing the Output Enable (OE) LOW
and the Write Enable (WE) HIGH. See the Truth Table on page
7 for a complete description of Read and Write modes.
■
Operating voltages of 3.3 ± 0.3V
■
2.0V data retention
■
Automatic power down when deselected
■
TTL compatible inputs and outputs
■
Easy memory expansion with CE1, CE2, and CE3 features
■
Available in Pb-free standard 119-Ball PBGA
The 24 IO pins (IO0 – IO23) are placed in a high impedance state
when the device is deselected (CE1 HIGH, CE2 LOW, or CE3
HIGH) or when the output enable (OE) is HIGH during a write
operation. (CE1 LOW, CE2 HIGH, CE3 LOW, and WE LOW).
Logic Block Diagram
256K x 24
ARRAY
IO0 – IO23
SENSE AMPS
A(9:0)
ROW DECODER
INPUT BUFFER
COLUMN
DECODER
CONTROL LOGIC
CE1, CE2, CE3
WE
OE
A(17:10)
Cypress Semiconductor Corporation
Document Number: 001-08351 Rev. *B
•
198 Champion Court
•
San Jose, CA 95134-1709
•
408-943-2600
Revised September 10, 2007
CY7C1034DV33
Selection Guide
–8
Maximum Access Time
Unit
8
ns
Maximum Operating Current
225
mA
Maximum CMOS Standby Current
25
mA
Pin Configuration
Figure 1. 119-Ball PBGA Top View [1]
1
2
3
4
5
6
7
A
NC
A
A
A
A
A
NC
B
NC
A
A
CE1
A
A
NC
C
IO12
NC
CE2
A
CE3
NC
IO0
D
IO13
VDD
VSS
VSS
VSS
VDD
IO1
E
IO14
VSS
VDD
VSS
VDD
VSS
IO2
F
IO15
VDD
VSS
VSS
VSS
VDD
IO3
G
IO16
VSS
VDD
VSS
VDD
VSS
IO4
H
IO17
VDD
VSS
VSS
VSS
VDD
IO5
J
NC
VSS
VDD
VSS
VDD
VSS
NC
K
IO18
VDD
VSS
VSS
VSS
VDD
IO6
L
IO19
VSS
VDD
VSS
VDD
VSS
IO7
M
IO20
VDD
VSS
VSS
VSS
VDD
IO8
N
IO21
VSS
VDD
VSS
VDD
VSS
IO9
P
IO22
VDD
VSS
VSS
VSS
VDD
IO10
R
IO23
NC
NC
NC
NC
NC
IO11
T
NC
A
A
WE
A
A
NC
U
NC
A
A
OE
A
A
NC
Note
1. NC pins are not connected on the die.
Document Number: 001-08351 Rev. *B
Page 2 of 9
CY7C1034DV33
DC Input Voltage [2] ............................... –0.5V to VCC + 0.5V
Maximum Ratings
Current into Outputs (LOW) ........................................ 20 mA
Exceeding maximum ratings may shorten the useful life of the
device. These user guidelines are not tested.
Static Discharge Voltage............. ...............................>2001V
Storage Temperature ................................. –65°C to +150°C
(MIL-STD-883, Method 3015)
Ambient Temperature with
Power Applied ............................................ –55°C to +125°C
Latch up Current...................................................... >200 mA
Operating Range
Supply Voltage on VCC Relative to GND [2] ....–0.5V to +4.6V
DC Voltage Applied to Outputs
in High Z State [2] ................................... –0.5V to VCC + 0.5V
Range
Ambient
Temperature
VCC
Commercial
0°C to +70°C
3.3V ± 0.3V
DC Electrical Characteristics
Over the operating range
Parameter
Test Conditions [3]
Description
VOH
Output HIGH Voltage
VCC = Min, IOH = –4.0 mA
VOL
Output LOW Voltage
VCC = Min, IOL = 8.0 mA
VIH
Input HIGH Voltage
Input LOW Voltage
VIL
[2]
–8
Min
Max
Unit
2.4
V
0.4
V
2.0
VCC + 0.3
V
–0.3
0.8
V
IIX
Input Leakage Current
GND < VI < VCC
–1
+1
µA
IOZ
Output Leakage Current
GND < VOUT < VCC, output disabled
–1
+1
µA
ICC
VCC Operating Supply
Current
VCC = Max, f = fMAX = 1/tRC,
IOUT = 0 mA CMOS levels
225
mA
ISB1
Automatic CE Power Down Max VCC, CE > VIH
Current — TTL Inputs
VIN > VIH or VIN < VIL, f = fMAX
30
mA
ISB2
Automatic CE Power Down Max VCC, CE > VCC – 0.3V,
Current — CMOS Inputs
VIN > VCC – 0.3V, or VIN < 0.3V, f = 0
25
mA
Capacitance
Tested initially and after any design or process changes that may affect these parameters.
Parameter
Description
CIN
Input Capacitance
COUT
IO Capacitance
Test Conditions
TA = 25°C, f = 1 MHz, VCC = 3.3V
Max
Unit
8
pF
10
pF
119-Ball
PBGA
Unit
20.31
°C/W
8.35
°C/W
Thermal Resistance
Tested initially and after any design or process changes that may affect these parameters.
Parameter
Description
ΘJA
Thermal Resistance
(Junction to Ambient)
ΘJC
Thermal Resistance
(Junction to Case)
Test Conditions
Still air, soldered on a 3 × 4.5 inch,
four layer printed circuit board
Notes
2. VIL (min) = –2.0V and VIH(max) = VCC + 2V for pulse durations of less than 20 ns.
3. CE refers to a combination of CE1, CE2, and CE3. CE is active LOW when CE1 is LOW, CE2 is HIGH, and CE3 is LOW. CE is HIGH when CE1 is HIGH, CE2 is LOW,
or CE3 is HIGH.
Document Number: 001-08351 Rev. *B
Page 3 of 9
CY7C1034DV33
AC Test Loads and Waveform
The AC test loads and waveform diagram follows. [4]
50Ω
OUTPUT
Z0 = 50Ω
R1 317 Ω
3.3V
VTH = 1.5V
OUTPUT
30 pF*
R2
351Ω
5 pF*
*Including jig
and scope
(a)
(b)
*Capacitive Load consists of all
components of the test environment
All input pulses
3.0V
90%
10%
GND
90%
10%
Fall Time:> 1V/ns
Rise Time > 1V/ns
(c)
AC Switching Characteristics
Over the operating range [5]
Parameter
Description
–8
Min
Max
Unit
Read Cycle
tpower [6]
VCC(Typical) to the First Access
tRC
Read Cycle Time
tAA
Address to Data Valid
tOHA
Data Hold from Address Change
tACE
CE Active LOW to Data Valid [3]
8
ns
tDOE
OE LOW to Data Valid
5
ns
OE LOW to Low Z
tHZOE
OE HIGH to High Z [7]
tLZCE
CE Active LOW to Low Z
8
ns
3
ns
5
[3, 7]
CE Deselect HIGH to High Z
tPU
CE Active LOW to Power Up
[3, 8]
tPD
CE Deselect HIGH to Power Down [3, 8]
ns
ns
1
[3, 7]
tHZCE
µs
8
[7]
tLZOE
100
3
ns
ns
5
0
ns
ns
8
ns
Notes
4. Valid SRAM operation does not occur until the power supplies reach the minimum operating VDD (3.0V). 100 µs (tpower) after reaching the minimum operating VDD,
normal SRAM operation begins including reduction in VDD to the data retention (VCCDR, 2.0V) voltage.
5. Test conditions assume signal transition time of 3 ns or less, timing reference levels of 1.5V, and input pulse levels of 0 to 3.0V. Test conditions for the read cycle use
output loading as shown in part a) of the AC Test Loads and Waveform, unless specified otherwise.
6. tPOWER gives the minimum amount of time that the power supply is at typical VCC values until the first memory access is performed.
7. tHZOE, tHZCE, tHZWE, tLZOE, tLZCE, and tLZWE are specified with a load capacitance of 5 pF as in part (b) of AC Test Loads. Transition is measured ±200 mV from steady
state voltage.
8. These parameters are guaranteed by design and are not tested.
Document Number: 001-08351 Rev. *B
Page 4 of 9
CY7C1034DV33
AC Switching Characteristics
(continued)
Over the operating range [5]
Parameter
–8
Description
Min
Max
Unit
Write Cycle [9, 10]
tWC
Write Cycle Time
[3]
8
ns
6
ns
6
ns
tSCE
CE Active LOW to Write End
tAW
Address Setup to Write End
tHA
Address Hold from Write End
0
ns
tSA
Address Setup to Write Start
0
ns
tPWE
WE Pulse Width
6
ns
tSD
Data Setup to Write End
5
ns
tHD
Data Hold from Write End
0
ns
tLZWE
WE HIGH to Low Z [7]
3
ns
tHZWE
WE LOW to High Z [7]
5
ns
Data Retention Characteristics
Over the operating range
Parameter
Conditions [3]
Description
VDR
VCC for Data Retention
ICCDR
Data Retention Current
tCDR [11]
Chip Deselect to Data Retention Time
tR
[12]
Min
Typ
Max
Unit
25
mA
2
V
VCC = 2V, CE > VCC – 0.2V,
VIN > VCC – 0.2V or VIN < 0.2V
Operation Recovery Time
0
ns
tRC
ns
Data Retention Waveform
DATA RETENTION MODE
VCC
3.0V
tCDR
VDR > 2V
3.0V
tR
CE
Notes
9. The internal write time of the memory is defined by the overlap of CE1 LOW, CE2 HIGH, CE3 LOW, and WE LOW. Chip enables must be active and WE must be LOW
to initiate a write and the transition of any of these signals terminates the write. The input data setup and hold timing are referenced to the leading edge of the signal
that terminates the write.
10. The minimum write cycle time for Write Cycle No. 3 (WE controlled, OE LOW) is the sum of tHZWE and tSD.
11. Tested initially and after any design or process changes that may affect these parameters.
12. Full device operation requires linear VCC ramp from VDR to VCC(min) > 50 µs or stable at VCC(min) > 50 µs.
Document Number: 001-08351 Rev. *B
Page 5 of 9
CY7C1034DV33
Switching Waveforms
Figure 2. Read Cycle No. 1 (Address Transition Controlled) [13, 14]
tRC
RC
ADDRESS
tOHA
DATA OUT
tAA
PREVIOUS DATA VALID
DATA VALID
Figure 3. Read Cycle No. 2 (OE Controlled) [3, 14, 15]
ADDRESS
tRC
CE
tACE
OE
tHZOE
tDOE
DATA OUT
tHZCE
tLZOE
HIGH IMPEDANCE
DATA VALID
tLZCE
VCC
SUPPLY
CURRENT
HIGH
IMPEDANCE
tPD
tPU
ICC
50%
50%
ISB
Figure 4. Write Cycle No. 1 (CE Controlled) [3, 16, 17]
tWC
ADDRESS
tSCE
CE
tSA
tSCE
tAW
tHA
tPWE
WE
tSD
DATA IO
tHD
DATA VALID
Notes
13. Device is continuously selected. OE, CE = VIL.
14. WE is HIGH for read cycle.
15. Address valid before or similar to CE transition LOW.
16. Data IO is high impedance if OE = VIH.
17. If CE goes HIGH simultaneously with WE going HIGH, the output remains in a high impedance state.
Document Number: 001-08351 Rev. *B
Page 6 of 9
CY7C1034DV33
Switching Waveforms (continued)
Figure 5. Write Cycle No. 2 (WE Controlled, OE HIGH During Write) [3, 16, 17]
tWC
ADDRESS
tSCE
CE
tAW
tHA
tSA
tPWE
WE
OE
tSD
DATA IO
tHD
DATAIN VALID
NOTE 18
tHZOE
Figure 6. Write Cycle No. 3 (WE Controlled, OE LOW) [3, 17]
tWC
ADDRESS
tSCE
CE
tAW
tSA
tHA
tPWE
WE
tSD
DATA IO
NOTE 18
tHD
DATA VALID
tLZWE
tHZWE
Truth Table
CE1
CE2
CE3
OE
WE
IO0 – IO23
Mode
Power
H
X
X
X
X
High Z
Power Down
Standby (ISB)
X
L
X
X
X
High Z
Power Down
Standby (ISB)
X
X
H
X
X
High Z
Power Down
Standby (ISB)
L
H
L
L
H
Full Data Out
Read
Active (ICC)
L
H
L
X
L
Full Data In
Write
Active (ICC)
L
H
L
H
H
High Z
Selected, Outputs Disabled Active (ICC)
Note
18. During this period, the IOs are in the output state and input signals are not applied.
Document Number: 001-08351 Rev. *B
Page 7 of 9
CY7C1034DV33
Ordering Information
Speed
(ns)
8
Ordering Code
CY7C1034DV33-8BGXC
Package
Name
Package Type
51-85115 119-Ball Plastic Ball Grid Array (14 x 22 x 2.4 mm) (Pb-Free)
Operating
Range
Commercial
Package Diagram
Figure 7. 119-Ball PBGA (14 x 22 x 2.4 mm)
51-85115-*B
Document Number: 001-08351 Rev. *B
Page 8 of 9
CY7C1034DV33
Document History Page
Document Title: CY7C1034DV33 6-Mbit (256K X 24) Static RAM
Document Number: 001-08351
REV.
ECN NO.
Issue
Date
Orig. of
Change
**
469517
See ECN
NXR
New datasheet
*A
499604
See ECN
NXR
Added note 1 for NC pins
Changed ICC specification from 150 mA to 185 mA
Updated Test Condition for ICC in DC Electrical Characteristics table
Added note for tACE, tLZCE, tHZCE, tPU, tPD, tSCE in AC Switching Characteristics Table
on page 4
*B
1462586 See ECN
VKN/SFV
Description of Change
Converted from preliminary to final
Updated block diagram
Changed ICC specification from 185 mA to 225 mA
Updated thermal specs
© Cypress Semiconductor Corporation, 2006-2007. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use
of any circuitry other than circuitry embodied in a Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be used
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as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress products in life-support
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integrated circuit as specified in the applicable agreement. Any reproduction, modification, translation, compilation, or representation of this Source Code except as specified above is prohibited without
the express written permission of Cypress.
Disclaimer: CYPRESS MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Cypress reserves the right to make changes without further notice to the materials described herein. Cypress does not
assume any liability arising out of the application or use of any product or circuit described herein. Cypress does not authorize its products for use as critical components in life-support systems where
a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress’ product in a life-support systems application implies that the manufacturer
assumes all risk of such use and in doing so indemnifies Cypress against all charges.
Use may be limited by and subject to the applicable Cypress software license agreement.
Document Number: 001-08351 Rev. *B
Revised September 10, 2007
All product and company names mentioned in this document are the trademarks of their respective holders.
Page 9 of 9