24c02bt Microchip Technology Inc., 24c02bt Datasheet

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24c02bt

Manufacturer Part Number
24c02bt
Description
1k/2k 5.0v I 2c? Serial Eeprom
Manufacturer
Microchip Technology Inc.
Datasheet
FEATURES
• Single supply with 5.0V operation
• Low power CMOS technology
• Organized as a single block of 128 bytes (128 x 8)
• 2-wire serial interface bus, I
• 100 kHz compatibility
• Self-timed write cycle (including auto-erase)
• Page-write buffer for up to 8 bytes
• 2 ms typical write cycle time for page-write
• Hardware write protect for entire memory
• Can be operated as a serial ROM
• ESD protection > 3,000V
• 1,000,000 ERASE/WRITE cycles guaranteed
• 8 pin DIP or SOIC package
• Available for extended temperature ranges
DESCRIPTION
The Microchip Technology Inc. 24C01B and 24C02B
are 1K bit and 2K bit Electrically Erasable PROMs. The
devices are organized as a single block of 128 x 8 bit or
256 x 8 bit memory with a 2-wire serial interface. The
24C01B and 24C02B also have page-write capability
for up to 8 bytes of data. The 24C01B and 24C02B are
available in the standard 8-pin DIP and an 8-pin surface
mount SOIC package.
These devices are for extended temperature
applications only. It is recommended that all other
applications use Microchip’s 24LC01B/02B.
M
I
2
C is a trademark of Philips Corporation.
- 1 mA active current typical
- 10 A standby current typical at 5.0V
- 5 A standby current typical at 5.0V
or 256 bytes (256 x 8)
Data retention > 200 years
- Automotive (E):
1997 Microchip Technology Inc.
1K/2K 5.0V I
-40˚C to
2
C compatible
+125˚C
Preliminary
2
C
Serial EEPROM
PACKAGE TYPES
BLOCK DIAGRAM
SDA SCL
24C01B/02B
V
V
CONTROL
PDIP
SOIC
LOGIC
CC
SS
I/O
Vss
NC
NC
NC
WP
Vss
NC
NC
NC
CONTROL
MEMORY
LOGIC
1
2
3
4
1
2
3
4
XDEC
8
7
6
5
DS21233A-page 1
8
7
6
5
HV GENERATOR
PAGE LATCHES
R/W CONTROL
SENSE AMP
EEPROM
ARRAY
Vcc
WP
SCL
SDA
YDEC
Vcc
WP
SCL
SDA

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24c02bt Summary of contents

Page 1

... Available for extended temperature ranges - Automotive (E): -40˚C to DESCRIPTION The Microchip Technology Inc. 24C01B and 24C02B are 1K bit and 2K bit Electrically Erasable PROMs. The devices are organized as a single block of 128 x 8 bit or 256 x 8 bit memory with a 2-wire serial interface. The 24C01B and 24C02B also have page-write capability for bytes of data ...

Page 2

... No Internal Connection Conditions (Note 3 . .1V to 5.5V OUT 5.0V (Note 1) CC Tamb = 25˚ MHz CLK 5.5V, SCL = 100 kHz 3.0V, SDA = SCL = 5.5V, SDA = SCL = STO STOP 1997 Microchip Technology Inc. ...

Page 3

... FIGURE 1-2: BUS TIMING DATA LOW SCL STA STA SDA SDA OUT 1997 Microchip Technology Inc. Tamb = -40˚C to +125˚C, Min. Max. Units — 100 kHz CLK 4000 — ns 4700 — ns — 1000 ns (Note 1) R — 300 ns ...

Page 4

... In this case, the slave must leave the data line HIGH to enable the master to generate the STOP condition. (D) (D) ADDRESS OR DATA ALLOWED VALID TO CHANGE Preliminary Of ( STOP CONDITION 1997 Microchip Technology Inc. ...

Page 5

... A BYTE R T SDA LINE S BUS ACTIVITY 1997 Microchip Technology Inc. 4.0 WRITE OPERATION 4.1 Byte Write Following the start signal from the master, the device code (4 bits), the don't care bits (3 bits), and the R/W bit which is a logic low is placed onto the bus by the master transmitter ...

Page 6

... V is below 1.5 volts at nominal conditions. CC The SCL and SDA inputs have Schmitt trigger and filter circuits which suppress noise spikes to assure proper device operation even on a noisy bus. Preliminary threshold detector cir- CC 1997 Microchip Technology Inc. ...

Page 7

... For normal data transfer SDA is allowed to change only during SCL low. Changes during SCL high are reserved for indicating the START and STOP condi- tions. 8.2 SCL Serial Clock This input is used to synchronize the data transfer from and to the device. 1997 Microchip Technology Inc. CONTROL BYTE DATA ...

Page 8

... NOTES: DS21233A-page 8 Preliminary 1997 Microchip Technology Inc. ...

Page 9

... NOTES: 1997 Microchip Technology Inc. 24C01B/02B Preliminary DS21233A-page 9 ...

Page 10

... NOTES: DS21233A-page 10 Preliminary 1997 Microchip Technology Inc. ...

Page 11

... P = Plastic DIP (300 mil Body), 8-lead Package Plastic SOIC (150 mil Body) Temperature +125 C Range: 2 24C01B Serial EEPROM 2 24C01BT Serial EEPROM (Tape and Reel) Device: 2 24C02B Serial EEPROM 2 24C02BT Serial EEPROM (Tape and Reel) Preliminary 24C01B/02B DS21233A-page 11 ...

Page 12

... Use of Microchip’s products as critical com- ponents in life support systems is not authorized except with express written approval by Microchip. No licenses are con- veyed, implicitly or otherwise, under any intellectual property rights. © 2002 Microchip Technology Inc. ® MCUs. Trademarks The Microchip name and logo, the Microchip logo, FilterLab, ...

Page 13

... Palazzo Taurus Colleoni 1 20041 Agrate Brianza Milan, Italy Tel: 39-039-65791-1 Fax: 39-039-6899883 United Kingdom Arizona Microchip Technology Ltd. 505 Eskdale Road Winnersh Triangle Wokingham Berkshire, England RG41 5TU Tel: 44 118 921 5869 Fax: 44-118 921-5820 01/18/02 © 2002 Microchip Technology Inc. ...

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