STK12C68-SF25I Cypress Semiconductor Corp, STK12C68-SF25I Datasheet - Page 10

• Manufacturer Part Number: STK12C68-SF25I
• Description: STK12C68-SF25I
• Manufacturer: Cypress Semiconductor Corp
• Type: NVSRAMr

Specifications of STK12C68-SF25I

• Format - Memory: RAM
• Memory Type: NVSRAM (Non-Volatile SRAM)
• Memory Size: 64K (8K x 8)
• Speed: 25ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SOIC (8.69mm width)
• Word Size: 8b
• Organization: 8Kx8
• Density: 64Kb
• Interface Type: Parallel
• Access Time (max): 25ns
• Operating Supply Voltage (typ): 5V
• Package Type: SOIC
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• Operating Temp Range: -40C to 85C
• Pin Count: 28
• Mounting: Surface Mount
• Supply Current: 85mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AC Switching Characteristics
SRAM Read Cycle
Switching Waveforms
Document Number: 001-51027 Rev. *D
t
t
t
t
t
t
t
t
t
t
t
ACE
RC
AA
DOE
OHA
LZCE
HZCE
LZOE
HZOE
PU
PD
Parameter
Cypress
[8]
[7]
[6]
[6]
[8]
[9]
[9]
[9]
[9]
Parameter
t
t
t
t
t
t
t
t
t
t
t
ELQV
AVAV,
AVQV
GLQV
AXQX
ELQX
EHQZ
GLQX
GHQZ
ELICCH
EHICCL
t
ELEH
Alt
Chip Enable Access Time
Read Cycle Time
Address Access Time
Output Enable to Data Valid
Output Hold After Address Change
Chip Enable to Output Active
Chip Disable to Output Inactive
Output Enable to Output Active
Output Disable to Output Inactive
Chip Enable to Power Active
Chip Disable to Power Standby
Figure 8. SRAM Read Cycle 2: CE and OE Controlled
Figure 7. SRAM Read Cycle 1: Address Controlled
Description
Min
25
5
5
0
0
25 ns
Max
25
25
10
10
10
25
[7, 8]
[7]
Min
35
5
5
0
0
35 ns
Max
35
35
15
10
35
10
Min
45
5
5
0
0
45 ns
STK12C68
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Max
45
45
20
12
45
12
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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