STK14CA8-NF25ITR 查看數據表（PDF） - Simtek Corporation

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STK14CA8-NF25ITR

128Kx8 Autostore nvSRAM

Simtek Corporation 

AutoStore/POWER-UP RECALL

SYMBOLS

NO.

Standard

Alternate

PARAMETER

22

tHRECALL

23

tSTORE

24

VSWITCH

25

VCCRISE

tHLHZ

Power-up RECALL Duration

STORE Cycle Duration

Low Voltage Trigger Level

VCC Rise Time

Note i: tHRECALL starts from the time VCC rises above VSWITCH

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

Note k: Industrial Grade Devices require 15 ms MAX.

STK14CA8

STK14CA8

MIN MAX

20

12.5

2.65

150

UNITS NOTES

ms

i

ms

j,k

V

μs

AutoStore/POWER-UP RECALL

VCC

24

VSWITCH

STORE occurs only if a

SRAM write has

happened.

No STORE occurs

without at least one

SRAM write.

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

Document Control #ML0022 Rev 2.1

7

Jan, 2008

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