STK11C68-5K45M Cypress Semiconductor Corp, STK11C68-5K45M Datasheet - Page 8

• Manufacturer Part Number: STK11C68-5K45M
• Description: STK11C68-5K45M
• Manufacturer: Cypress Semiconductor Corp
• Type: NVSRAMr

Specifications of STK11C68-5K45M

• Format - Memory: RAM
• Memory Type: NVSRAM (Non-Volatile SRAM)
• Memory Size: 64K (8K x 8)
• Speed: 45ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -55°C ~ 125°C
• Package / Case: 28-CDIP (0.300", 7.62mm)
• Word Size: 8b
• Organization: 8Kx8
• Density: 64Kb
• Interface Type: Parallel
• Access Time (max): 45ns
• Operating Supply Voltage (typ): 5V
• Operating Temperature Classification: Military
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• Operating Temp Range: -55C to 125C
• Pin Count: 28
• Mounting: Through Hole
• Supply Current: 65mA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Switching Waveforms
Notes
Document Number: 001-51001 Rev. *A
SRAM Write Cycle
t
t
t
t
t
t
t
t
t
t
7. If WE is Low when CE goes Low, the outputs remain in the high impedance state.
8. CE or WE must be greater than V
Parameter
WC
PWE
SCE
SD
HD
AW
SA
HA
HZWE
LZWE
Cypress
[6]
[6,7]
Parameter
ADDRESS
DATA OUT
ADDRESS
DATA IN
DATA OUT
DATA IN
t
t
t
t
t
t
t
t
t
t
CE
WE
WE
AVAV
WLWH,
ELWH,
DVWH,
WHDX,
AVWH,
AVWL,
WHAX,
WLQZ
WHQX
CE
Alt
t
t
t
t
t
t
t
ELEH
AVEL
AVEH
WLEH
EHAX
DVEH
EHDX
Write Cycle Time
Write Pulse Width
Chip Enable To End of Write
Data Setup to End of Write
Data Hold After End of Write
Address Setup to End of Write
Address Setup to Start of Write
Address Hold After End of Write
Write Enable to Output Disable
Output Active After End of Write
IH
during address transitions.
Figure 9. SRAM Write Cycle 2: CE and OE Controlled
PREVIOUS DATA
t
SA
Figure 8. SRAM Write Cycle 1: WE Controlled
t
SA
Description
HIGH IMPEDANCE
t
t
t
AW
AW
t
PWE
HZWE
t
t
SCE
t
SCE
WC
t
WC
Min
t
HIGH IMPEDANCE
35
25
25
12
25
PWE
t
0
0
0
5
DATA VALID
SD
35 ns
DATA VALID
t
SD
Max
13
STK11C68-5 (SMD5962-92324)
[7, 8]
Min
45
30
30
15
30
t
0
0
0
5
HA
t
t
HD
HA
t
HD
45 ns
[7, 8]
Max
t
15
LZWE
Min
55
45
45
45
30
0
0
0
5
55 ns
Max
35
Page 8 of 15
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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