24LC02 Holtek, 24LC02 Datasheet

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24LC02

Manufacturer Part Number
24LC02
Description
Manufacturer
Holtek
Datasheet

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Features
General Description
The HT24LC01/02 is a 1K/2K-bit serial
read/write non-volatile memory device using
the CMOS floating gate process. Its 1024/2048
bits of memory are organized into 128/256
words and each word is 8 bits. The device is
optimized for use in many industrial and com-
Block Diagram
Operating voltage: 2.4V~5.5V
Low power consumption
Internal organization
2-wire serial interface
Write cycle time: 5ms max.
Automatic erase-before-write operation
Operation: 5mA max.
Standby: 5 A max.
1K (HT24LC01):128 8
2K (HT24LC02): 256 8
1K/2K 2-Wire CMOS Serial EEPROM
1
mercial applications where low power and low
voltage operation are essential. Up to eight
HT24LC01/02 devices may be connected to the
same two-wire bus. The HT24LC01/02 is guar-
anteed for 1M erase/write cycles and 40-year
data retention.
Pin Assignment
Partial page write allowed
8-byte Page write modes
Write operation with built-in timer
Hardware controlled write protection
40-year data retention
10
8-pin DIP/SOP package
8-pin TSSOP (HT24LC02 only)
Commerical temperature range
(0 C to +70 C)
6
erase/write cycles per word
HT24LC01/02
6th May ’99

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24LC02 Summary of contents

Page 1

... Hardware controlled write protection 40-year data retention 6 10 erase/write cycles per word 8-pin DIP/SOP package 8-pin TSSOP (HT24LC02 only) Commerical temperature range ( +70 C) mercial applications where low power and low voltage operation are essential eight HT24LC01/02 devices may be connected to the same two-wire bus ...

Page 2

Pin Description Pin Name I/O A0~A2 I Address inputs SDA I/O Serial data inputs/output SCL I Serial clock data input WP I Write protect VSS — Negative power supply VCC I Positive power supply Absolute Maximum Ratings Operating Temperature (Commercial) ...

Page 3

A.C. Characteristics Symbol Parameter f Clock Frequency SK t Clock High Time HIGH t Clock Low Time LOW t SDA and SCL Rise Time Note R t SDA and SCL Fall Time Note F After this period START Condition Hold ...

Page 4

... Memory organization HT24LC01, 1K Serial EEPROM Internally organized with 128 8-bit words, the 1K requires a 7-bit data word address for random word addressing. HT24LC02, 2K Serial EEPROM Internally organized with 256 8-bit words, the 2K requires an 8-bit data word address for random word addressing. Device operations ...

Page 5

The 8th bit of device address is the read/write operation select bit. A read operation is initi- ated if this bit is high and a write operation is initiated if this bit is low. If the comparison of the device ...

Page 6

ACK will be returned. If the cycle is completed, then the device will return the ACK and the master can then pro- ceed with the next read or write command. Write protect The HT24LC01/02 can be ...

Page 7

Sequential read Sequential reads are initiated by either a cur- rent address read or a random address read. After the microcontroller receives a data word, it responds with an acknowledgment. As long as the EEPROM receives an acknowledgment, it will ...

Page 8

... Holtek reserves the right to alter its products without prior notification. For the most up-to-date information, please visit our web site at http://www.holtek.com.tw. ...

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