WCFS1008C3E Datasheet, PDF (5/8 Pages) Weida Semiconductor, Inc. – 128K x 8 Static RAM

Switching Waveforms (continued)
Write Cycle No. 1 (CE₁ or CE₂ Controlled)^{[10, 14]}
ADDRESS
CE₁
CE₂
WE
DATA I/O
t_SA
t_AW
t_WC
t_SCE
t_PWE
t_SCE
t_SD
DATA VALID
WCFS1008C3E
WCFS1008C9E
t_HA
t_HD
Write Cycle No. 2 (WE Controlled, OE HIGH During Write)^{[10, 14]}
ADDRESS
CE₁
t_WC
t_SCE
CE₂
t_SCE
t_AW
t_HA
t_SA
t_PWE
WE
OE
DATA I/O
NOTE 15
t_HZOE
t_SD
t_HD
DATA_IN VALID
Notes:
13. Data I/O is high impedance if OE = V_IH.
14. If CE₁ goes HIGH or CE₂ goes LOW simultaneously with WE going HIGH, the output remains in a high-impedance state.
15. During this period the I/Os are in the output state and input signals should not be applied.
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