参数资料
型号: P4C168L-35FSM
厂商: PYRAMID SEMICONDUCTOR CORP
元件分类: SRAM
英文描述: 4K X 4 STANDARD SRAM, 35 ns, PDFP20
封装: DFP-20
文件页数: 12/14页
文件大小: 628K
代理商: P4C168L-35FSM
P4C168/P4C168L, P4C169, P4C170
Page 7 of 14
Document # SRAM107 REV E
TIMING WAVEFORM OF WRITE CYCLE NO. 2 (CE/CS CONTROLLED)(10)
TRUTH TABLES
P4C168 (P4C169)
P4C170
Notes:
10. CE/CS and WE must be LOW for WRITE cycle.
11. If CE/CS goes HIGH simultaneously with WE HIGH, the output
remains in a high impedance state.
12. Write Cycle Time is measured from the last valid address to the first
transitioning address.
TIMING WAVEFORM OF WRITE CYCLE NO. 1 (WE CONTROLLED)(10)
Mode
CE
(CS)
WE
Output
Standby (Deselect)
H
X
High Z
Read
L
H
D
OUT
Write
L
High Z
Mode
CE
WE
OE
Output
Deselect
H
X
High Z
Read
L
H
L
D
OUT
Output Inhibit
L
H
High Z
Write
L
X
High Z
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