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P4C168, P4C169, P4C170
AC CHARACTERISTICS—READ CYCLE
(V
CC = 5V ± 10%, All Temperature Ranges)
(2)
Sym.
t
RC
t
AA
Parameter
Read Cycle Time
Address Access Time
–12
–15
–20
–25
Min Max Min Max Min Max Min Max Min Max
–35
Unit
12
12
15
15
20
25
35
ns
ns
20
25
35
Chip Enable Access Time
t
AC
§
12
15
20
25
35
ns
Chip Select Access Time
t
AC
‡
8
9
12
15
20
ns
t
OH
Output Hold from Address Change
2
2
2
2
2ns
Chip Enable to Output in Low Z
t
LZ
‡
2
22
2
2
ns
Chip Disable to Output in High Z
t
HZ
†
6
79
10
15
ns
Output Enable to Data Valid
t
OE
†
812
10
15
15
ns
Output Enable to Output in Low Z
t
OLZ
†
00
0
00
ns
Output Disable to Output in High Z
t
OHZ
†
6
79
11
15
ns
Read Command Setup Time
t
RCS
00
0
00
ns
Read Command Hold Time
t
RCH
0
0
0
00
ns
Chip Enable to Power Up Time
t
PU
§
0
0
00
0
ns
Chip Disable to Power Down Time
t
PD
§
12
15
20
25
35
ns
§ P4C168 only
† P4C170 only
‡ Chip Select/Deselect for P4C169 and P4C170
TIMING WAVEFORM OF READ CYCLE NO. 1 (ADDRESS CONTROLLED)(5,6)
t
ADDRESS
DATA OUT
AA
t
tOH
DATA VALID
PREVIOUS DATA VALID
(9)
RC
Notes:
5.
WE is HIGH for READ cycle.
6.
CE/CS and OE are LOW for READ cycle.
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