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AM93LC46

1024-bits Serial Electrically Erasable PROM

Anachip Corporation 

1024-bits Serial Electrically Erasable PROM

ATC

AM93LC46

Features

•State-of-the-art architecture

- Non-volatile data storage

- Operating voltage Vcc: 2.7~ 5.5V

- Full TTL compatible inputs and outputs

- Auto increment read for efficient data dump

• Hardware and software write protection

- Defaults to write-disabled state at power up

- Software instructions for write-enable/disable

- Vcc level verification before self-timed

programming cycle.

• Advanced low voltage CMOS EEPROM

technology

• Versatile, easy-to-use interface

- Self-timed programming cycle

- Automatic erase-before-write

- Programming status Indicator

- Word and chip erasable

- Stop SK anytime for power savings

• Durability and reliability

- 40 year data retention

- Minimum of 1M write cycles

- Unlimited read cycles

- ESD protection

Connection Diagram

CS 1

SK 2

DI 3

DO 4

8 VCC

7 NC

6 NC

5 GND

NC 1

VCC 2

CS 3

SK 4

8 NC

7 GND

6 DO

5 DI

PDIP-8L / SOP-8L

Rotated SOP-8L

General Description

The AM93LC46 is a 1024-bit, non-volatile, serial

EEPROM. It is manufactured by using ATC's

advanced CMOS EEPROM technology. The

AM93LC46 provides efficient non-volatile read/write

memory arranged as 64 registers of 16 bits each.

Seven 9-bit instructions control the operation of the

device, which includes read, write, and write

enable/disable functions. The data out pin (DO)

indicates the status of the device during the

self-timed non-volatile programming cycle.

The self-timed write cycle includes an automatic

erase-before-write capability. Only when the chip is

in the WRITE ENABLE state and proper Vcc

operation range is the WRITE instruction accepted

and thus to protect against inadvertent writes. Data is

written in 16 bits per write instruction into the

selected register. If Chip Select (CS) is brought HIGH

after initiation of the write cycle, the Data Output (DO)

pin will indicate the READY/BUSY status of the chip.

The AM93LC46 is available in space-saving 8-lead

PDIP, 8-lead SOP and rotated 8-lead SOP package.

Pin Assignments

Name

CS

SK

DI

DO

GND

VCC

NC

Description

Chip Select

Serial Data Clock

Serial Data Input

Serial Data Output

Ground

Power Supply

No Connection

Ordering Information

AM 93 LC 46 X XX X

Operating Voltage Type

LC : 2.7~5.5V, CMOS 46:1K

Temp. grade

Blank: 0o C ~ + 70o C

I : - 40 o C ~ + 85o C

V: - 40o C ~ + 125 o C

Package

S : SOP-8L

GS: SOP-8L, G type

N : PDIP-8L

TS: TSSOP-8L

Packing

Blank : Tube

A : Taping

This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of

this product. No rights under any patent accompany the sale of the product.

Rev.A2 Oct 20, 2003

1/11

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