STK14CA8 查看數據表（PDF） - Simtek Corporation

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STK14CA8

128K x 8AutoStore™ nvSRAM QuantumTrap™ CMOS Nonvolatile Static RAM

Simtek Corporation 

STK14CA8

AutoStore™ /POWER-UP RECALL

SYMBOLS

NO.

Standard

Alternate

PARAMETER

22

tHRECALL

Power-up RECALL Duration

23

tSTORE

tHLHZ

STORE Cycle Duration

24

VSWITCH

Low Voltage Trigger Level

25

tVCCRISE

VCC Rise Time

Notes

i: tHRECALL starts from the time VCC rises above VSWITCH

j: If an SRAM WRITE has not taken place since the last nonvolatile cycle, no STORE will take place

k: Industrial Grade Devices require 15ms MAX.

STK14CA8

MIN

MAX

20

12.5

2.55

2.65

150

UNITS NOTES

ms

i

ms

j,k

V

µs

STORE occurs only if a

SRAM write has

happened.

No STORE occurs

without at least one

SRAM write.

AutoStore™/POWER-UP RECALL

VCC

24

VSWITCH

AutoStoreTM

25

tVCCRISE

POWER-UP RECALL

Read & Write Inhibited

22

tHRECALL

23

tSTORE

22

tHRECALL

23

tSTORE

POWER-UP

RECALL

BROWN OUT

AutoStoreTM

POWER-UP

RECALL

POWER DOWN

AutoStoreTM

Note: Read and Write cycles will be ignored during STORE, RECALL and while VCC is below VSWITCH

December 2005

7

Document Control #ML0022 rev 1.3

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