M48Z129Y Datasheet, PDF (9/13 Pages) STMicroelectronics – 3.3V/5V 1 Mbit 128Kb x8 ZEROPOWER SRAM

M48Z129Y, M48Z129V
Table 10. Write Mode AC Characteristics
(T_A = 0 to 70 °C; V_CC = 4.5V to 5.5V or 3.0V to 3.6V)
M48Z129Y
M48Z129V
Symbol
Parameter
-70
-85
Min
Max
Min
Max
t_AVAV
Write Cycle Time
70
85
t_AVWL
Address Valid to Write Enable Low
0
0
t_AVEL
Address Valid to Chip Enable Low
0
0
t_WLWH
Write Enable Pulse Width
55
65
t_ELEH
Chip Enable Low to Chip Enable High
55
75
t_WHAX
Write Enable High to Address Transition
5
5
t_EHAX
Chip Enable High to Address Transition
15
15
t_DVWH
Input Valid to Write Enable High
30
35
t_DVEH
Input Valid to Chip Enable High
30
35
t_WHDX
Write Enable High to Input Transition
0
0
t_EHDX
Chip Enable High to Input Transition
10
15
t_WLQZ ^{(1, 2)}
Write Enable Low to Output Hi-Z
25
30
t_AVWH
Address Valid to Write Enable High
65
75
t_AVEH
Address Valid to Chip Enable High
65
75
t_WHQX ^{(1, 2)}
Write Enable High to Output Transition
5
5
Note: 1. C_L = 5pF (see Figure 4).
2. If E goes low simultaneously with W going low, the outputs remain in the high impedance state.
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Figure 8. Write Enable Controlled, Write AC Waveforms
A0-A16
E
W
DQ0-DQ7
tAVEL
tAVAV
VALID
tAVWH
tWHAX
tAVWL
tWLWH
tWLQZ
tWHDX
DATA INPUT
tDVWH
tWHQX
AI02382
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