U635H16

7

March 31, 2006

STK Control #ML0050

Rev 1.0

Nonvolatile Memory Operations

Mode Selection

E

W

A10 - A0

(hex)

Mode

I/O

Power

Notes

H

X

X

Not Selected

Output High Z

Standby

L

H

X

Read SRAM

Output Data

Active

m

L

L

X

Write SRAM

Input Data

Active

L

H

000

555

2AA

7FF

0F0

70F

Read SRAM

Read SRAM

Read SRAM

Read SRAM

Read SRAM

Nonvolatile STORE

Output Data

Output Data

Output Data

Output Data

Output Data

Output High Z

Active

k, l

k, l

k, l

k, l

k, l

k

L

H

000

555

2AA

7FF

0F0

70E

Read SRAM

Read SRAM

Read SRAM

Read SRAM

Read SRAM

Nonvolatile RECALL

Output Data

Output Data

Output Data

Output Data

Output Data

Output High Z

Active

k, l

k, l

k, l

k, l

k, l

k

k:

The six consecutive addresses must be in order listed (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.

See STORE cycle and RECALL cycle tables and diagrams for further details.

The following six-address sequence is used for testing purposes and should not be used: 000, 555, 2AA, 7FF, 0F0, 39C.

l:

Activation of nonvolatile cycles does not depend on the state of G.

m: I/O state assumes that G

≤ V

No.

PowerStore

Power Up RECALL

Symbol

Conditions

Min.

Max.

Unit

Alt.

IEC

24

650

μs

25

the power supply vol-

tage must stay above

3.6 V at least

10 ms after the start

of the STORE opera-

tion

10

ms

26

1

μs

Low Voltage Trigger Level

4.0

4.5

V

n: