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CAT22C10 Datasheet(PDF) 2 Page - Catalyst Semiconductor

Part No. CAT22C10
Description  256-Bit Nonvolatile CMOS Static RAM
Download  10 Pages
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Maker  CATALYST [Catalyst Semiconductor]
Homepage  http://www.catalyst-semiconductor.com
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CAT22C10 Datasheet(HTML) 2 Page - Catalyst Semiconductor

 
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CAT22C10
2
Doc. No. 1082, Rev. O
MODE SELECTION(1)(2)(3)
Input
Mode
CS
CS
CS
CS
CS
WE
WE
WE
WE
WE
RECALL
RECALL
RECALL
RECALL
RECALL
STORE
STORE
STORE
STORE
STORE
I/O
Standby
H
X
H
H
Output High-Z
RAM Read
L
H
H
H
Output Data
RAM Write
L
L
H
H
Input Data
(EEPROM
→RAM)
X
H
L
H
Output High-Z RECALL
(EEPROM
→RAM)
H
X
L
H
Output High-Z RECALL
(RAM
→EEPROM)
X
H
H
L
Output High-Z STORE
(RAM
→EEPROM)
H
X
H
L
Output High-Z STORE
BLOCK DIAGRAM
POWER-UP TIMING(4)
Symbol
Parameter
Min.
Max.
Units
VCCSR
VCC Slew Rate
0.5
0.005
V/ms
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 VCC is below ≈ 3.0V.
(4) This parameter is tested initially and after a design or process change that affects the parameter.
ROW
SELECT
COLUMN SELECT
CONTROL
LOGIC
READ/WRITE
CIRCUITS
RECALL
EEPROM ARRAY
STORE
A0
A1
A2
A3
A4
A5
STORE
RECALL
CS
WE
I/O0 I/O1 I/O2 I/O3
STATIC RAM
ARRAY


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