24LC32/P Microchip Technology, 24LC32/P Datasheet

24LC32/P

Manufacturer Part Number

24LC32/P

Description

IC EEPROM 32KBIT 400KHZ 8DIP

Manufacturer

Microchip Technology

Datasheet

1.24LC32P.pdf (14 pages)

Specifications of 24LC32/P

Format - Memory

EEPROMs - Serial

Memory Type

EEPROM

Memory Size

32K (4K x 8)

Speed

400kHz

Interface

I²C, 2-Wire Serial

Voltage - Supply

2.5 V ~ 6.0 V

Operating Temperature

0°C ~ 70°C

Package / Case

8-DIP (0.300", 7.62mm)

Lead Free Status / RoHS Status

Request inventory verification / Request inventory verification

Current page: 1 of 14
Download datasheet (149Kb)

FEATURES

• Voltage operating range: 2.5V to 6.0V

• Industry standard two-wire bus protocol, I

• Self-timed ERASE and WRITE cycles

• Power on/off data protection circuitry

• Endurance:

• 8 byte page, or byte modes available

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

• 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

• 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.

C is a trademark of Philips Corporation. Smart Serial is a trademark of Microchip Technology Inc.

- Peak write current 3 mA at 6.0V

- Maximum read current 150 A at 6.0V

- Standby current 1 A typical

compatible

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

- 10,000,000 Erase/Write cycles

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

loads

bus for up to 256K bits total memory

- Commercial (C):

- Industrial (I):

2004 Microchip Technology Inc.

guaranteed for High Endurance Block

Standard Endurance Block

32K 2.5V I

-40° to

0°C to +70°C

+85°

™

Smart Serial EEPROM

PACKAGE TYPES

BLOCK DIAGRAM

SDA

I/O

CONTROL

LOGIC

I/O

PDIP

SOIC

Obsolete Device

Please use 24LC32A or 24LC65.

SCL

CONTROL

MEMORY

LOGIC

24LC32

XDEC

DS21072G-page 1

HV GENERATOR

PAGE LATCHES

R/W CONTROL

SENSE AMP

SCL

SDA

EEPROM

ARRAY

SCL

SDA

CACHE

YDEC

Related parts for 24LC32/P

24LC32/P Summary of contents

Page 1

... The 24LC32 is available the standard 8-pin in plastic DIP and 8-pin surface mount SOIC package trademark of Philips Corporation. Smart Serial is a trademark of Microchip Technology Inc. 2004 Microchip Technology Inc. Obsolete Device Please use 24LC32A or 24LC65. 2 ™ ...

Page 2

... Power Supply No Internal Connection Tamb = 0°C to +70°C Tamb = -40°C to +85°C Conditions (Note OUT 5.0V (Note) CC Tamb = 25°C, Fclk = 1 MHz V = 6.0V, SCL = 400 kHz 6.0V, SCL = 400 kHz 5.0V, SCL = SDA = A0, A1 STO STOP 2004 Microchip Technology Inc. ...

Page 3

... Total Endurance Model which can be obtained from our website. FIGURE 1-2: BUS TIMING DATA LOW SCL STA STA SDA SDA OUT 2004 Microchip Technology Inc 2.5V-6. 4 STD. MODE FAST MODE Min Max Min Max — 100 — 400 4000 — 600 — 4700 — 1300 — ...

Page 4

... In this case, the slave (24LC32) will leave the data line HIGH to enable the master to generate the STOP condition. (D) (D) ADDRESS OR DATA ACKNOWLEDGE ALLOWED VALID TO CHANGE Of course, (C) (A) STOP CONDITION 2004 Microchip Technology Inc. ...

Page 5

... R/W bit, the 24LC32 will select a read or write operation. FIGURE 3-3: ADDRESS SEQUENCE BIT ASSIGNMENTS CONTROL BYTE R SLAVE DEVICE ADDRESS SELECT BUS 2004 Microchip Technology Inc. FIGURE 3-2: CONTROL BYTE ALLOCATION START SLAVE ADDRESS Control Operation Code Read 1010 Write 1010 ADDRESS BYTE ...

Page 6

... The 64-byte cache will continue to capture data until a stop condition occurs or the oper- ation is aborted (Figure 4-2). Word Word Address (0) Address ( Word Word Address (1) Address ( DATA DATA DATA 2004 Microchip Technology Inc. ...

Page 7

... MASTER SDA LINE BUS ACTIVITY 2004 Microchip Technology Inc. 6.0 READ OPERATION Read operations are initiated in the same way as write operations with the exception that the R/W bit of the slave address is set to one. There are three basic types of read operations: current address read, random read, and sequential read ...

Page 8

... The SCL and SDA inputs have filter circuits which sup- press noise spikes to ensure proper device operation even on a noisy bus. All I/O lines incorporate Schmitt triggers for 400 kHz (Fast Mode) compatibility WORD R ADDRESS ( DATA DATA CONTROL T DATA n BYTE DATA 2004 Microchip Technology Inc. ...

Page 9

... Since the write begins at page 3 and 8 pages are loaded into the cache, the last 3 pages of the cache are written to the next row in the array. 2004 Microchip Technology Inc. 24LC32 6.8 Cache Write Starting at a Non-Page Boundary When a write command is initiated that does not begin at a page boundary (i ...

Page 10

... Remaining bytes in cache are written sequentially to array. array page 4 • • • page 7 row n array page 4 • • • page 7 row 2004 Microchip Technology Inc. ...

Page 11

... To determine if an errata sheet exists for a particular device, please contact one of the following: 1. Your local Microchip sales office 2. The Microchip Corporate Literature Center U.S. FAX: (602) 786-7277 3. The Microchip Worldwide Web Site (www.microchip.com) 2004 Microchip Technology Inc Plastic DIP (300 mil Body), 8-lead SM = Plastic SOIC (207 mil Body, EIAJ standard) Blank = + - + 24LC32 ...

Page 12

... NOTES: DS21072G-page 12 2004 Microchip Technology Inc. ...

Page 13

... PICLAB, PICtail, PowerCal, PowerInfo, PowerMate, PowerTool, rfLAB, rfPICDEM, Select Mode, Smart Serial, SmartTel and Total Endurance are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...

Page 14

... Via Salvatore Quasimodo, 12 20025 Legnano (MI) Milan, Italy Tel: 39-0331-742611 Fax: 39-0331-466781 Netherlands Waegenburghtplein 4 NL-5152 JR, Drunen, Netherlands Tel: 31-416-690399 Fax: 31-416-690340 United Kingdom 505 Eskdale Road Winnersh Triangle Wokingham Berkshire, England RG41 5TU Tel: 44-118-921-5869 Fax: 44-118-921-5820 07/12/04  2004 Microchip Technology Inc. ...

Related keywords

24lc32
24lc32a
24lc32at
24LC32/P datasheet
24LC32/P data sheet
24LC32/P pdf datasheet
24LC32/P component
24LC32/P part
24LC32/P distributor
24LC32/P RoHS
24LC32/P datasheet download