Cypress Semiconductor STK16C88 Manuale d'uso - Pagina 11
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Stampa la paginaSoftware Controlled STORE/RECALL Cycle
The software controlled STORE/RECALL cycle follows.
Parameter
Alt
t
t
RC
AVAV
[11]
t
t
SA
AVEL
[11]
t
t
CW
ELEH
[7, 11]
t
t
HACE
ELAX
t
RECALL
Switching Waveforms
ADDRESS
t
SA
CE
OE
DQ (DATA)
Notes
11. The software sequence is clocked on the falling edge of CE without involving OE (double clocking aborts the sequence).
12. The six consecutive addresses must be read in the order listed in the Mode Selection table. WE must be HIGH during all six consecutive cycles.
Document Number: 001-50595 Rev. **
[11, 12]
Description
STORE/RECALL Initiation Cycle Time
Address Setup Time
Clock Pulse Width
Address Hold Time
RECALL Duration
Figure 10. CE Controlled Software STORE/RECALL Cycle
t
RC
A
D
D
R
E
S
S
#
1
t
SCE
t
HACE
DATA VALID
25 ns
Min
Max
25
0
20
20
20
[12]
t
RC
A
D
D
R
E
S
S
#
6
t
/ t
STORE
RECALL
HIGH IMPEDANCE
DATA VALID
STK16C88
45 ns
Unit
Min
Max
45
ns
0
ns
30
ns
20
ns
μs
20
Page 11 of 14
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