NM93C86A Datasheet, PDF(1/13 Page) Fairchild Semiconductor – 16K-Bit Serial CMOS EEPROM (MICROWIRE™ Synchronous Bus)

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NM93C86A Datasheet, PDF (1/13 Pages) Fairchild Semiconductor – 16K-Bit Serial CMOS EEPROM (MICROWIRE™ Synchronous Bus)

February 2000

NM93C86A

16K-Bit Serial CMOS EEPROM

(MICROWIREâ¢ Synchronous Bus)

General Description

NM93C86A is a 16,384-bit CMOS non-volatile EEPROM orga-

nized as 1024 x 16-bit array. This device features MICROWIRE

interface which is a 4-wire serial bus with chipselect (CS), clock

(SK), data input (DI) and data output (DO) signals. This interface

is compatible to many of standard Microcontrollers and Micropro-

cessors. This device offers a pin (ORG), using which, the user can

select the format of the data (16-bit or 8-bit). If ORG is tied to GND,

then 8-bit format is selected, while if ORG is tied to VCC, then 16-

bit format is selected. There are 7 instructions implemented on the

NM93C86A for various Read, Write, Erase, and Write Enable/

Disable operations. This device is fabricated using Fairchild

Semiconductor floating-gate CMOS process for high reliability,

high endurance and low power consumption.

âLZâ and âLâ versions of NM93C86A offer very low standby current

making them suitable for low power applications. This device is

offered in both SO and TSSOP packages for small space consid-

erations.

Features

I Wide VCC 2.7V - 5.5V

I User selectable organization

x16 (ORG = 1)

x8 (ORG = 0)

I Typical active current of 200ÂµA

10ÂµA standby current typical

1ÂµA standby current typical (L)

0.1ÂµA standby current typical (LZ)

I No Erase instruction required before Write instruction

I Self timed write cycle

I Device status during programming cycles

I 40 year data retention

I Endurance: 1,000,000 data changes

I Packages available: 8-pin SO, 8-pin DIP, 8-pin TSSOP

Functional Diagram

INSTRUCTION

ADDRESS

INSTRUCTION

DECODER

CONTROL LOGIC

AND CLOCK

GENERATORS

ORG

DECODER

EEPROM ARRAY

READ/WRITE AMPS

DATA IN/OUT REGISTER

16/8 BITS

DATA OUT BUFFER

VCC

HIGH VOLTAGE

GENERATOR

AND

PROGRAM

TIMER

VSS

NM93C86A Rev. F.1

www.fairchildsemi.com

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