NM24C02U Ver la hoja de datos (PDF) - Fairchild Semiconductor

Número de pieza

componentes Descripción

Lista de partido

NM24C02U

2K-Bit Serial EEPROM 2-Wire Bus Interface

Fairchild Semiconductor 

Bus Timing

tF

tLOW

SCL

SDA

tSU:STA

tHD:STA

;;IN

tAA

SDA

OUT

System Layout

Typical System Configuration

tHIGH

tHD:DAT

tR

tLOW

tSU:DAT

tDH

tSU:STO

tBUF

DS800007-8

VCC

VCC

SDA

SCL

Master

Transmitter/

Receiver

Slave

Receiver

Slave

Transmitter/

Receiver

Master

Transmitter

Note: Due to open drain configuration of SDA, a bus-level pull-up resistor is called for, (typical value = 4.7kΩ)

Example of 16K of Memory on 2-Wire Bus

Note:

The SDA pull-up resistor is required due to the open-drain/open collector output of IIC bus devices.

The SCL pull-up resistor is recommended because of the normal SCL line inactive 'high' state.

It is recommended that the total line capacitance be less than 400pF

Master

Transmitter/

Receiver

VCC

DS800007-20

VCC

SDA

SCL

VCC

NM24C02U/03U

A0 A1 A2 VSS

VCC

NM24C02U/03U

A0 A1 A2 VSS

VCC

NM24C04U/05U

A1 A2 VSS

VCC

NM24C08U/09U

A2 VSS

To VCC or VSS

To VCC or VSS

To VCC or VSS

To VCC or VSS

DS800007-9

Device

NM24C02U/03U

Address Pins

Memory Size # of Page

A0

A1

A2

Blocks

ADR

ADR

ADR

2048 Bits

1

6

NM24C02U/NM24C03U Rev. B.1

www.fairchildsemi.com

Share Link: