 2004 Microchip Technology Inc.

DS21072G-page 1

FEATURES

• Voltage operating range: 2.5V to 6.0V

- Peak write current 3 mA at 6.0V

- Maximum read current 150

µA at 6.0V

- Standby current 1

µA typical



compatible

- Including 100 kHz (2.5V) and 400 kHz (5V) modes

• Self-timed ERASE and WRITE cycles

• Power on/off data protection circuitry

• Endurance:

- 10,000,000 Erase/Write cycles

guaranteed for High Endurance Block

- 1,000,000 E/W cycles guaranteed for

Standard Endurance Block

• 8 byte page, or byte modes available

• 1 page x 8 line input cache (64 bytes) for fast write

loads

• Schmitt trigger, filtered inputs for noise suppression

• Output slope control to eliminate ground bounce

• 2 ms typical write cycle time, byte or page

• Factory programming (QTP) available

• Up to 8 devices may be connected to the same

bus for up to 256K bits total memory

• Electrostatic discharge protection > 4000V

• Data retention > 200 years

• 8-pin PDIP/SOIC packages

•

Temperature ranges

DESCRIPTION

The Microchip Technology Inc. 24LC32 is a 4K x 8

(32K bit) Serial Electrically Erasable PROM capable of

operation across a broad voltage range (2.5V to 6.0V).

This device has been developed for advanced, low

power applications such as personal communications

or data acquisition. The 24LC32 features an input

cache for fast write loads with a capacity of eight 8-byte

pages, or 64 bytes. It also features a fixed 4K-bit block

of ultra-high endurance memory for data that changes

frequently. The 24LC32 is capable of both random and

sequential reads up to the 32K boundary. Functional

address lines allow up to eight 24LC32 devices on the

same bus, for up to 256K bits address space.

Advanced CMOS technology and broad voltage range

make this device ideal for low-power/low voltage, non-

volatile code and data applications. The 24LC32 is

available the standard 8-pin in plastic DIP and 8-pin

surface mount SOIC package.

- Commercial (C):

0°C to +70°C

- Industrial (I):

-40° to

+85°

PACKAGE TYPES

BLOCK DIAGRAM

A0

A1

A2

1

2

3

4

8

7

6

5

NC

SCL

SDA

A0

A1

A2

1

2

3

4

8

7

6

5

NC

SCL

SDA

PDIP

SOIC

HV GENERATOR

EEPROM

ARRAY

PAGE LATCHES

YDEC

XDEC

SENSE AMP

MEMORY

CONTROL

LOGIC

I/O

CONTROL

LOGIC

SDA

SCL

I/O

A2

A1

A0

CACHE

R/W CONTROL

24LC32

Obsolete Device

Please use 24LC32A or 24LC65.