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Q67100-H3765

64 Kbit (8192 × 8 bit) Serial CMOS-EEPROM with I2C Synchronous 2-Wire Bus

Siemens AG 

SLx 24C64

2

Description

The SLx 24C64 device is a serial electrically erasable and programmable read only

memory (EEPROM), organized as 8192 × 8 bit. The data memory is divided into

256 pages. The 32 bytes of a page can be programmed simultaneously.

The device conforms to the specification of the 2-wire serial I2C-Bus. Three chip select

pins allow the addressing of 8 devices on the I2C-Bus. Low voltage design permits

operation down to 2.7 V with low active and standby currents. All devices have a

minimum endurance of 106 erase/write cycles.

The device operates at 5.0 V ± 10% with a maximum clock frequency of 400 kHz and at

2.7 ... 5.5 V with a maximum clock frequency of 100 kHz. The device is available as 5 V

type (VCC = 4.5 … 5.5 V) with two temperature ranges for industrial and automotive

applications and as 3 V type (VCC = 2.7 … 5.5 V) for industrial applications. The

EEPROMs are mounted in eight-pin DIP and DSO packages or are also supplied as

chips.

V SS

V CC

CS0 CS1 CS2 WP

Start/

Stop

Logic

SCL

SDA

Figure 2

Block Diagram

Semiconductor Group

Chip Address

Control

Logic

Serial

Control

Logic

Programming

Control

H.V. Pump

Address

Logic

X

DEC

EEPROM

Page Logic

Y DEC

Dout/ACK

IEB02525

6

Preliminary 1998-07-27

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