AT24C16C 데이터 시트보기 (PDF) - Atmel Corporation

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AT24C16C

I2C-Compatible, (2-Wire) Serial EEPROM

Atmel Corporation 

3. Block Diagram

VCC

GND

WP

SCL

SDA

Start

Stop

Logic

Serial

Control

Logic

Enable

Device

Address

Comparator

COMP

Load

INC

Data Word

A2

Read/Write

ADDR/Counter

A1

High Voltage

Pump & Timing

Data Latches

EEPROM

Array

DOUT

Column

Decoder

Serial MUX

DOUT / ACK

Logic

DIN

4. Pin Description

Serial Clock (SCL): The SCL input is used to positive edge clock data into each EEPROM device and negative edge

clock data out of each device.

Serial Data (SDA): The SDA pin is bidirectional for serial data transfer. This pin is open-drain driven and may be

wire-ORed with any number of other open-drain or open-collector devices.

Device/Page Addresses: The AT24C16C does not use the device address pins, which limits the number of devices on

a single bus to one (see Section 7. “Device Addressing” on page 9).

Write Protect (WP): AT24C16C has a Write Protect pin that provides hardware data protection. The Write Protect pin

allows normal Read/Write operations when connected to Ground (GND). When the Write Protect pin is connected to VCC,

the Write Protection feature is enabled and operates as shown in Table 4-1.

Table 4-1. Write Protect

WP Pin Status

At VCC

At GND

Part of the Array Protected

AT24C16C

Full Array

Normal Read/Write Operations

Atmel AT24C16C [DATASHEET]

3

Atmel-8719B-SEEPROM-AT24C16C-Datasheet_042013

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