WCMB4016R4X Datasheet, PDF (7/12 Pages) Weida Semiconductor, Inc. – 256K x 16 Static RAM

Switching Waveforms
[11, 15, 16]
Write Cycle No. 1(WE Controlled)
ADDRESS
CE
t_WC
t_SCE
t_AW
t_SA
t_PWE
WE
BHE/BLE
t_BW
OE
DATA I/O
NOTE ₁₇
t_HZOE
Write Cycle No. 2 (CE Controlled)^{[11, 15, 16]}
ADDRESS
CE
WE
t_SA
t_AW
t_SD
DATA_IN VALID
t_WC
t_SCE
t_PWE
BHE/BLE
t_BW
OE
DATA I/O
NOTE 17
t_HZOE
t_SD
DATA_IN VALID
Notes:
15. Data I/O is high impedance if OE = V_IH.
16. If CE goes HIGH simultaneously with WE HIGH, the output remains in a high-impedance state.
17. During this period, the I/Os are in output state and input signals should not be applied.
WCMB4016R4X
t_HA
t_HD
t_HA
t_HD
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