STK22C48-WF25 Cypress Semiconductor Corp, STK22C48-WF25 Datasheet - Page 10

• Manufacturer Part Number: STK22C48-WF25
• Manufacturer: Cypress Semiconductor Corp
• Type: NVSRAMr

Specifications of STK22C48-WF25

• Word Size: 8b
• Organization: 2Kx8
• Density: 16Kb
• Interface Type: Parallel
• Access Time (max): 25ns
• Operating Supply Voltage (typ): 5V
• Package Type: PDIP
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• Operating Temp Range: 0C to 70C
• Pin Count: 28
• Mounting: Through Hole
• Supply Current: 85mA
• Lead Free Status / RoHS Status: Compliant

AutoStore or Power Up RECALL
Switching Waveform
Document Number: 001-51000 Rev. *A
Notes
t
t
t
V
V
t
12. t
13. CE and OE low for output behavior.
14. CE and OE low and WE high for output behavior.
15. HSB is asserted low for 1us when V
HRECALL
STORE
DELAY
VSBL
SWITCH
RESET
takes place.
Parameter
HRECALL
[10]
[13]
[14, 15]
[12]
starts from the time V
WE
t
t
t
RESTORE
HLHZ
HLQZ ,
t
BLQZ
CC
Alt
rises above V
CAP
drops through V
Power up RECALL Duration
STORE Cycle Duration
Time Allowed to Complete SRAM Cycle
Low Voltage Trigger Level
Low Voltage Reset Level
Low Voltage Trigger (V
SWITCH
Figure 10. AutoStore/Power Up RECALL
.
SWITCH
. If an SRAM Write has not taken place since the last nonvolatile cycle, HSB is released and no store
Description
SWITCH
) to HSB Low
Min
4.0
1
STK22C48
Max
550
300
4.5
3.6
10
STK22C48
Page 10 of 14
Unit
ms
μs
μs
ns
V
V
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