U632H64

8

August 15, 2006

STK Control #ML0047

Rev 1.1

PowerStore and automatic Power Up RECALL

Hardware Controlled STORE

DQi

Output

Previous Data Valid

HSB

Data Valid

r:

s: Once the software controlled STORE or RECALL cycle is initiated, it completes automatically, ignoring all inputs.

t:

Noise on the E pin may trigger multiple READ cycles from the same address and abort the address sequence.

No.

Software Controlled STORE/

RECALL Cycle

Symbol

Unit

Alt.

IEC

Min. Max.

29 STORE/RECALL Initiation Time

25

ns

600

ns

31 STORE Cycle Time

10

ms

20

μs

33 Address Setup to Chip Enable

0ns

20

ns

35 Chip Disable to Address Change

0ns

(26)

(27)

High Impedance

5.0 V

t

PowerStore

Power Up

W

DQi

POWER UP

RECALL

BROWN OUT

BROWN OUT

PowerStore

(NO S RAM WRITES)

RECALL

(24)

(24)

NO STORE

(25)