22C10 datasheet(2/10 Pages) CATALYST

No. de pieza	22C10

Descripción Electrónicos	256-Bit Nonvolatile CMOS Static RAM

PDF	10 Pages

Scroll/Zoom	100%

Fabricante Electrónico	CATALYST [Catalyst Semiconductor]

Página de inicio	http://www.catalyst-semiconductor.com

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2 / 10 page

CAT22C10

Doc. No. 25018-0A 2/98 N-1

MODE SELECTION(1)(2)(3)

Input

Mode

RECALL

STORE

I/O

Standby

Output High-Z

RAM Read

Output Data

RAM Write

Input Data

(E2PROM

→RAM)

Output High-Z RECALL

(E2PROM

→RAM)

Output High-Z RECALL

(RAM

→E2PROM)

Output High-Z STORE

(RAM

→E2PROM)

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

2PROM ARRAY

STORE

RECALL

I/O0 I/O1 I/O2 I/O3

STATIC RAM

ARRAY

5153 FHD F02

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