cym1821 Cypress Semiconductor Corporation., cym1821 Datasheet - Page 6

• Manufacturer Part Number: cym1821
• Description: 16k X 32 Static Ram Module
• Manufacturer: Cypress Semiconductor Corporation.

Switching Waveforms
Truth Table
Ordering Information
Document #: 38-M-00015-E
Write Cycle No. 2 (CS Controlled)
CS
Note:
11. If CS goes HIGH simultaneously with WE HIGH, the output remains in a high-impedance state.
DATA OUT
Speed
ADDRESS
H
L
L
L
DATA IN
12
15
20
25
35
45
N
WE OE Inputs/Outputs
WE
CS
H
H
X
L
CYM1821PM-12C
CYM1821PZ-12C
CYM1821PM-15C
CYM1821PZ-15C
CYM1821PM-20C
CYM1821PZ-20C
CYM1821PM-25C
CYM1821PZ-25C
CYM1821PM-35C
CYM1821PZ-35C
CYM1821PM-45C
CYM1821PZ-45C
H
X
X
L
Ordering Code
High Z
Data Out
Data In
High Z
(continued)
DATA UNDEFINED
[7,11]
Deselect/Power-Down
Read
Write
Deselect
Package
Name
t
PM01
PM01
PM01
PM01
PM01
PM01
PZ01
PZ01
PZ01
PZ01
PZ01
PZ01
SA
Mode
64-Pin Plastic SIMM Module
64-Pin Plastic ZIP Module
64-Pin Plastic SIMM Module
64-Pin Plastic ZIP Module
64-Pin Plastic SIMM Module
64-Pin Plastic ZIP Module
64-Pin Plastic SIMM Module
64-Pin Plastic ZIP Module
64-Pin Plastic SIMM Module
64-Pin Plastic ZIP Module
64-Pin Plastic SIMM Module
64-Pin Plastic ZIP Module
t
AW
t
Package
WC
6
Type
t
HZWE
DATA VALID
t
PWE
t
t
SCS
SD
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Operating
HIGH IMPEDANCE
Range
t
HD
t
HA
CYM1821
1821–8