22C10 CatalystSemiconductor, 22C10 Datasheet - Page 2

• Manufacturer Part Number: 22C10
• Description: 256-BitNonvolatileCMOSStaticRAM
• Manufacturer: CatalystSemiconductor

BLOCK DIAGRAM
MODE SELECTION
POWER-UP TIMING
Doc. No. 25018-0A 2/98 N-1
Note:
(1) RECALL signal has priority over STORE signal when both are applied at the same time.
(2) STORE is inhibited when RECALL is active.
(3) The store operation is inhibited when V
(4) This parameter is tested initially and after a design or process change that affects the parameter.
Symbol
VCCSR
Standby
RAM Read
RAM Write
(E
(E
(RAM E
(RAM E
2
2
PROM RAM)
PROM RAM)
Mode
2
2
PROM)
PROM)
(1)(2)(3)
(4)
V
CS
CS
CS
CS
CS
CC
H
H
H
Parameter
X
X
L
L
RECALL
STORE
Slew Rate
A 0
A 1
A 2
A 3
A 4
A 5
CC
is below
WE
WE
WE
WE
WE
CONTROL
X
H
H
X
H
X
L
CS
SELECT
LOGIC
ROW
3.0V.
WE
Input
COLUMN SELECT
RECALL
RECALL
RECALL
RECALL
RECALL
I/O 0 I/O 1 I/O 2 I/O 3
H
H
H
H
H
L
L
READ/WRITE
STATIC RAM
2
CIRCUITS
ARRAY
Min.
0.5
STORE
STORE
STORE
STORE
STORE
E
2
PROM ARRAY
H
H
H
H
H
L
L
STORE
RECALL
0.005
Max.
Output High-Z
Output Data
Input Data
Output High-Z RECALL
Output High-Z RECALL
Output High-Z STORE
Output High-Z STORE
I/O
Units
V/ms
5153 FHD F02