NM24C16U 데이터 시트보기 (PDF) - Fairchild Semiconductor

부품명

상세내역

일치하는 목록

NM24C16U

16K-Bit Serial EEPROM 2-Wire Bus Interface

Fairchild Semiconductor 

August 1999

NM24C16U/NM24C17U

16K-Bit Serial EEPROM

2-Wire Bus Interface

General Description

The NM24C16U/17U devices are 16K (16,384) bit serial interface

CMOS EEPROMs (Electrically Erasable Programmable Read-

Only Memory). These devices fully conform to the Standard I2C™

2-wire protocol which uses Clock (SCL) and Data I/O (SDA) pins

to synchronously clock data between the "master" (for example a

microprocessor) and the "slave" (the EEPROM device). In addi-

tion, the serial interface allows a minimal pin count packaging

designed to simplify PC board layout requirements and offers the

designer a variety of low voltage and low power options.

NM24C17U incorporates a hardware "Write Protect" feature, by

which, the upper half of the memory can be disabled against

programming by connecting the WP pin to VCC. This section of

memory then effectively becomes a ROM (Read-Only Memory)

and can no longer be programmed as long as WP pin is connected

to VCC.

Fairchild EEPROMs are designed and tested for applications requir-

ing high endurance, high reliability and low power consumption for a

continuously reliable non-volatile solution for all markets.

Block Diagram

VCC

VSS

WP

SDA

SCL

START

STOP

LOGIC

SLAVE ADDRESS

REGISTER &

COMPARATOR

CONTROL

LOGIC

Functions

I I2C™ compatible interface

I 4,096 bits organized as 512 x 8

I Extended 2.7V – 5.5V operating voltage

I 100 KHz or 400 KHz operation

I Self timed programming cycle (6ms typical)

I "Programming complete" indicated by ACK polling

I NM24C17U: Memory "Upper Block" Write Protect pin

Features

I The I2C™ interface allows the smallest I/O pincount of any

EEPROM interface

I 16 byte page write mode to minimize total write time per byte

I Typical 200µA active current (ICCA)

I Typical 1µA standby current (ISB) for "L" devices and 0.1µA

standby current for "LZ" devices

I Endurance: Up to 1,000,000 data changes

I Data retention greater than 40 years

H.V. GENERATION

TIMING &CONTROL

XDEC

E2PROM

ARRAY

WORD

ADDRESS

COUNTER

R/W

YDEC

CK

DIN

DATA REGISTER

DOUT

I2C™ is a registered trademark of Philips Electronics N.V.

© 1999 Fairchild Semiconductor Corporation

1

NM24C16U/17U Rev. B.1

DS800010-1

www.fairchildsemi.com

Share Link: