cym1841c ETC-unknow, cym1841c Datasheet - Page 7

• Manufacturer Part Number: cym1841c
• Description: 256k X 32 Static Ram Module
• Manufacturer: ETC-unknow

Switching Waveforms
Truth Table
Write Cycle No. 2 (CS Controlled)
Notes:
11. If CS goes HIGH simultaneously with WE HIGH, the output remains in a high-impedance state.
CS
DATA OUT
H
L
L
L
ADDRESS
DATA IN
WE OE
H
H
X
L
WE
CS
X
X
H
L
High Z
Data Out
Data In
High Z
Input/Output
(continued)
DATA UNDEFINED
[7, 11]
Deselect/Power-Down
Read
Write
Deselect
t
SA
Mode
t
AW
t
WC
7
t
HZWE
DATA VALID
t
PWE
t
t
SCS
SD
HIGH IMPEDANCE
t
HD
t
HA
CYM1841A
CYM1841C
1841A–9