HT24LC02 Holtek, HT24LC02 Datasheet

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HT24LC02

Manufacturer Part Number
HT24LC02
Description
2K (256x8) 2-wire CMOS serial EEPROM
Manufacturer
Holtek
Datasheet

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Features
General Description
The HT24LC02 is a 2K-bit serial read/write non-volatile
memory device using the CMOS floating gate process.
Its 2048 bits of memory are organized into 256 words
and each word is 8 bits. The device is optimized for use
in many industrial and commercial applications where
Block Diagram
Pin Description
Rev. 1.40
A0~A2
SDA
SCL
WP
VSS
VCC
Operating voltage
Low power consumption
Internal organization: 256 8
2-wire serial interface
Write cycle time: 5ms max.
Pin Name
2.2V~5.5V for temperature 0 C to +70 C
2.4V~5.5V for temperature 40 C to +85 C
Operation: 5mA max.
Standby: 5 A max.
I/O
I/O
I
I
I
Address inputs
Serial data inputs/output
Serial clock data input
Write protect
Negative power supply, ground
Positive power supply
CMOS 2K 2-Wire Serial EEPROM
1
low power and low voltage operation are essential. Up
to eight HT24LC02 devices may be connected to the
same 2-wire bus. The HT24LC02 is guaranteed for 1M
erase/write cycles and 40-year data retention.
Pin Assignment
Automatic erase-before-write operation
Partial page write allowed
8-byte Page write modes
Write operation with built-in timer
Hardware controlled write protection
40-year data retention
10
Industrial temperature range ( 40 C to +85 C)
8-pin DIP/SOP/TSSOP package
Description
6
erase/write cycles per word
HT24LC02
May 30, 2008

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HT24LC02 Summary of contents

Page 1

... Industrial temperature range ( +85 C) 8-pin DIP/SOP/TSSOP package low power and low voltage operation are essential eight HT24LC02 devices may be connected to the same 2-wire bus. The HT24LC02 is guaranteed for 1M erase/write cycles and 40-year data retention. Pin Assignment Description 1 ...

Page 2

... These parameters are periodically sampled but not 100% tested Rev. 1.40 +6.0V Storage Temperature ............................ 125 C SS +0.3V Operating Temperature........................... Test Conditions Min. V Conditions CC 2 + Read at 100kHz 5V Write at 100kHz 1 0. =2.1mA 2. OUT 2. f=1MHz 25 C f=1MHz HT24LC02 Typ. Max. Unit 5 May 30, 2008 ...

Page 3

... START 4000 condition 0 200 4000 Time in which the bus must be free before a 4700 new transmission can start Noise suppression time = 2.2V to 5. 2.4V to 5. HT24LC02 V =5V 10% CC Unit Max. Min. Max. 100 400 kHz 600 ns 1200 ns 1000 300 ...

Page 4

... A0, A1, A2 The A2, A1 and A0 pins are device address inputs that are hard wired for the HT24LC02. As many as eight 2K devices may be addressed on a single bus system (the device addressing is discussed in detail under the Device Addressing section). ...

Page 5

... ACK signal has finally been received. Write protect The HT24LC02 has a write-protect function and pro- gramming will then be inhibited when the WP pin is connected to VCC. Under this mode, the HT24LC02 is used as a serial ROM. Read operations The HT24LC02 supports three read operations, namely, current address read, random address read and sequential read ...

Page 6

... When the memory address limit is reached, the data word address will roll over and the sequential read continues. The sequential read operation is terminated when the microcontroller responds with a no ACK sig- nal (high) followed by a stop condition. 6 HT24LC02 May 30, 2008 ...

Page 7

... Package Information 8-pin DIP (300mil) Outline Dimensions Symbol Rev. 1.40 Dimensions in mil Min. Nom. 355 240 125 125 16 50 100 295 335 0 7 HT24LC02 Max. 375 260 135 145 20 70 315 375 15 May 30, 2008 ...

Page 8

... SOP (150mil) Outline Dimensions Symbol Rev. 1.40 Dimensions in mil Min. Nom. 228 149 14 189 HT24LC02 Max. 244 157 20 197 May 30, 2008 ...

Page 9

... TSSOP Outline Dimensions Symbol Rev. 1.40 Dimensions in mm Min. Nom. 1.05 0.05 0.95 0.25 0.11 2.90 6.20 4.30 0.65 0.50 0. HT24LC02 Max. 1.20 0.15 1.05 0.15 3.10 6.60 4.50 0.70 1.10 0.10 8 May 30, 2008 ...

Page 10

... Spindle Hole Diameter D Key Slit Width T1 Space Between Flange T2 Reel Thickness Rev. 1.40 Dimensions in mm 330 1.0 62 1.5 13.0+0.5 0.2 2.0 0.15 12.8+0.3 0.2 18.2 0.2 Dimensions in mm 330 1.0 62 1.5 13.0+0.5 0.2 2 0.5 12.8+0.3 0.2 18.2 0.2 10 HT24LC02 May 30, 2008 ...

Page 11

... Dimensions in mm 12.0+0.3 0.1 8.0 0.1 1.75 0.1 5.5 0.5 1.5+0.1 1.5+0.1 4.0 0.1 2.0 0.1 7.0 0.1 3.6 0.1 1.6 0.1 0.3 0.013 9.3 11 HT24LC02 May 30, 2008 ...

Page 12

... Holtek s products are not authorized for use as critical components in life support devices or systems. 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. Rev. 1.40 12 HT24LC02 May 30, 2008 ...

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