© Semiconductor Components Industries, LLC, 2009

October, 2009 − Rev. 7

1

Publication Order Number:

CAT93C46R/D

CAT93C46R

1 kb Microwire Serial

EEPROM

Description

The CAT93C46R is a 1 kb CMOS Serial EEPROM device which is

organized as either 64 registers of 16 bits or 128 registers of 8 bits, as

determined by the state of the ORG pin. The CAT93C46R features

sequential read and self−timed internal write with auto−clear. On−chip

Power−On Reset circuitry protects the internal logic against powering

up in the wrong state.

In contrast to the CAT93C46, the CAT93C46R features an internal

instruction clock counter which provides improved noise immunity

for Write/Erase commands.

Features

Compliant*

Figure 1. Functional Symbol

DO

GND

CAT93C46R

ORG

CS

SK

DI

*For additional information on our Pb−Free strategy and soldering details, please

download the ON Semiconductor Soldering and Mounting Techniques

Reference Manual, SOLDERRM/D.

http://onsemi.com

See detailed ordering and shipping information in the package

dimensions section on page 13 of this data sheet.

ORDERING INFORMATION

PIN CONFIGURATIONS

GND

NC

DO

DI

SK

CS

1

ORG

PDIP (L), SOIC (V, X),

TSSOP (Y),

TDFN (VP2)

Chip Select

CS

Clock Input

SK

Serial Data Input

DI

Serial Data Output

DO

Power Supply

Ground

GND

Function

Pin Name

PIN FUNCTION

Memory Organization

ORG

No Connection

NC

x16 organization is selected. When it is connected

to ground, the x8 pin is selected. If the ORG pin is

left unconnected, then an internal pull−up device will

select the x16 organization.

SOIC−8

V SUFFIX

CASE 751BD

PDIP−8

L SUFFIX

CASE 646AA

TDFN−8

VP2 SUFFIX

CASE 511AK

TSSOP−8

Y SUFFIX

CASE 948AL

SOIC−8

X SUFFIX

CASE 751BE

DI

GND

ORG

SK

CS

NC

1

DO

SOIC (W)

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