24AA32-/SN View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

24AA32-/SN

32K 1.8V I2C™ Smart Serial EEPROM

Microchip Technology 

24AA32

32K 1.8V I2C™ Smart Serial EEPROM

FEATURES

• Voltage operating range: 1.8V to 6.0V

- Peak write current 3 mA at 6.0V

- Maximum read current 150 µA at 6.0V

- Standby current 1 µA typical

• Industry standard two-wire bus protocol, I2C™

compatible

- Including 100 kHz (1.8V) and 400 kHz (5V)

modes

• Self-timed ERASE and WRITE cycles

• Power on/off data protection circuitry

• Endurance:

- 10,000,000 Erase/Write (E/W) cycles guaran-

teed for High Endurance Block

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

dard 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

- Commercial (C):

0°C to +70°C

DESCRIPTION

The Microchip Technology Inc. 24AA32 is a 4K x 8 (32K

bit) Serial Electrically Erasable PROM capable of oper-

ation across a broad voltage range (1.8V to 6.0V). This

device has been developed for advanced, low power

applications such as personal communications or data

acquisition. The 24AA32 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 fre-

quently. The 24AA32 is capable of both random and

sequential reads up to the 32K boundary. Functional

address lines allow up to 8 - 24AA32 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, nonvolatile code

I2C is a trademark of Philips Corporation.

PACKAGE TYPES

PDIP

A0 1

A1 2

A2 3

VSS 4

8 VCC

7 NC

6 SCL

5 SDA

SOIC

A0

1

A1

2

A2

3

VSS

4

8

VCC

7 NC

6 SCL

5 SDA

BLOCK DIAGRAM

A0..A2

HV GENERATOR

I/O

CONTROL

LOGIC

I/O

SCL

MEMORY

CONTROL

LOGIC

XDEC

EEPROM ARRAY

PAGE LATCHES

Cache

SDA

VCC

VSS

YDEC

SENSE AMP

R/W CONTROL

and data applications. The 24AA32 is available in the

standard 8-pin plastic DIP and 8-pin surface mount

SOIC package.

© 1996 Microchip Technology Inc.

DS21124C-page 1

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