7

STK16C88-3

Jan, 2008

Document Control #ML0019 Rev 2.0

SOFTWARE STORE/RECALL MODE SELECTION

Note l:

The six consecutive addresses must be in the order listed. W must be high during all six consecutive E controlled cycles to enable a nonvolatile

cycle.

Note m: While there are 15 addresses on the STK16C88-3, only the lower 14 are used to control software modes.

SOFTWARE STORE/RECALL CYCLEn, o

Note n:

The software sequence is clocked on the falling edge of E controlled Reads without involving G (double clocking will abort the sequence). See

application note: MA0002 http://www.simtek.com(/attachments/AppNote02.pdf.

Note o:

The six consecutive addresses must be in the order listed in the Software STORE/RECALL Mode Selection Table: (0E38, 31C7, 03E0, 3C1F,

303F, 0FC0) for a STORE cycle or (0E38, 31C7, 03E0, 3C1F, 303F, 0C63) for a RECALL cycle. W must be high during all six consecutive

cycles.

SOFTWARE STORE/RECALL CYCLE: E Controlledo

E

W

MODE

I/O

NOTES

L

H

0E38

31C7

03E0

3C1F

303F

0FC0

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

l, m

L

H

0E38

31C7

03E0

3C1F

303F

0C63

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

l, m

NO.

SYMBOLS

PARAMETER

STK16C88-3-35

UNITS

MIN

MAX

26

STORE/RECALL Initiation Cycle Time

35

ns

27

n

Address Set-up Time

0

ns

28

n

Clock Pulse Width

25

ns

29

g, n

Address Hold Time

20

ns

30

RECALL Cycle Duration

20

μs

31

STORE Cycle Duration

10

ms

HIGH IMPEDANCE

ADDRESS #6

ADDRESS #1

DATA VALID

26

DATA VALID

DQ (DATA

E

ADDRESS

31

30

26

27

28

29