STK11C48(2002) 데이터 시트보기 (PDF) - Simtek Corporation

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STK11C48
(Rev.:2002)

2K x 8 nvSRAM QuantumTrap™ CMOS Nonvolatile Static RAM

Simtek Corporation 

STK11C48

SOFTWARE STORE/RECALL MODE SELECTION

E

W

L

H

A10 - A0 (hex)

000

555

2AA

7FF

0F0

70F

MODE

Read SRAM

Read SRAM

Read SRAM

Read SRAM

Read SRAM

Nonvolatile STORE

I/O

Output Data

Output Data

Output Data

Output Data

Output Data

Output High Z

NOTES

l

000

Read SRAM

Output Data

555

Read SRAM

Output Data

L

H

2AA

7FF

Read SRAM

Read SRAM

Output Data

Output Data

l

0F0

Read SRAM

Output Data

70E

Nonvolatile RECALL

Output High Z

Note l: The six consecutive addresses must be in the order listed. W must be high during all six consecutive cycles to enable a nonvolatile cycle.

SOFTWARE STORE/RECALL CYCLEm, n

(VCC = 5.0V ± 10%)b

NO. SYMBOLS

PARAMETER

STK11C48-25

MIN

MAX

STK11C48-35

MIN

MAX

STK11C48-45

MIN

MAX

UNITS

26

tAVAV

STORE/RECALL Initiation Cycle Time

27

tAVELm

Address Set-up Time

28

tELEHm

Clock Pulse Width

29

tELAXm

Address Hold Time

30

tRECALLm

RECALL Duration

25

35

45

ns

0

0

0

ns

20

25

30

ns

20

20

20

ns

20

20

20

µs

Note m: The software sequence is clocked with E controlled reads.

Note n: The six consecutive addresses must be in the order listed in the Software STORE/RECALL Mode Selection Table: (000, 555, 2AA, 7FF, 0F0,

70F) for a STORE cycle or (000, 555, 2AA, 7FF, 0F0, 70E) for a RECALL cycle. W must be high during all six consecutive cycles.

SOFTWARE STORE/RECALL CYCLE: E Controlledn

ADDRESS

26

tAVAV

ADDRESS #1

26

tAVAV

ADDRESS #6

27

tAVEL

28

tELEH

E

DQ (DATA OUT)

29

tELAX

DATA VALID

/ 23

30

tSTORE tRECALL

DATA VALID

HIGH IMPEDANCE

December 2002

6 Document Control # ML0003 rev 0.0

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