STK22C48-NF25 Cypress Semiconductor Corp, STK22C48-NF25 Datasheet - Page 11

• Manufacturer Part Number: STK22C48-NF25
• Description: STK22C48-NF25
• Manufacturer: Cypress Semiconductor Corp

Specifications of STK22C48-NF25

• Format - Memory: RAM
• Memory Type: NVSRAM (Non-Volatile SRAM)
• Memory Size: 16K (2K x 8)
• Speed: 25ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AutoStore or Power Up RECALL
Switching Waveform
Document Number: 001-51000 Rev. *D
Notes
t
t
t
V
V
t
14. t
15. CE and OE low and WE high for output behavior.
16. HSB is asserted low for 1us when V
17. CE and OE low for output behavior.
18. HSB must be high during SRAM Write cycles.
HRECALL
STORE
DELAY
VSBL
SWITCH
RESET
takes place.
Parameter
HRECALL
[18]
[17]
[15, 16]
[14]
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 11. 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 11 of 17
Unit
ms
μs
μs
ns
V
V
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