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L24W02
Serial EEPROM
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Data Sheet
Revision A
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S062A
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LinkSmart
L24W02 2K 2-Wire (256x8) 3V~5.5V CMOS Serial EEPROM
PRELIMINARY A
Revision history
Rev. No. A Approved date 2004/8/20 History Initial issue Remark (purpose) Preliminary
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All rights reserved. LinkSmart reserves the right to change its products and specification without prior notice. For the most up-to-date information, please visit our website at http://www.linksmart.com.tw or http://www.lstmc.com. All companies, brands, logos, pictures, product names and trademarks are the property of owner respective companies. LinkSmart Technology Co., Ltd. has been award ISO-9000 certification. All IC products are designed and manufactured in according with the highest quality standards and objectives. LinkSmart Technology Co., Ltd. B1, No. 216, Ta-Hsueh Road, Hsin-Chu City, Taiwan TEL: (886)-3-575 1188 FAX: (886)-3-575 1180 LinkSmart Microelectronics Technology Co., Ltd. 4F, A6 Standard Factory, Li Yuan Economic Development Park, Wu Xi City, China TEL: (86)-510-5160 232 FAX: (86)-510-5160 272 LinkSmart Microelectronics Technology Co., Ltd. (Sales Office) Room 2407, Nan-Shan Software Park, Nan-Shan District, ShenZhen City, China TEL: (86)-755-2658 1768 FAX: (86)-755-2658 1781 http://www.linksmart.com.tw http://www.lstmc.com
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L24W02 2K 2-Wire (256x8) 3V~5.5V CMOS Serial EEPROM
PRELIMINARY A
Features z Operating voltage: 3V~5.5V z Low power consumption - Operation: 5mA max. - Standby: 5µA max. z Internal organization: - 2K: 256x8 z 2-wire Serial Interface z Write cycle time: 5ms max. z Automatic erase-before-write operation General Description The L24W02 is a 2K-bits serial read/write nonvolatile memory device using the CMOS floating gate process. Its 2,048 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 low power and Block Diagram
I/O Control Logic HV Pump X D E C
z z z z z z z z
Partial page write allowed 8-byte Page Write Mode Write operation with built-in timer Hardware controlled write protection 40-year data retention 1,000,000 (106)rewrite cycles per word Commercial temperature range (0°C to +70°C) 8-pin SOP/DIP/TSSOP package
low voltage operation are essential. Up to eight L24W02 devices may be connected to the same two-wire bus. The L24W02 is guaranteed for 1,000,000 (106) erase/write cycles and 40 years data retention.
Pin Configurations
A0 1 2 3 4 8 7 6 5 Vcc WP SCL SDA A1 A2
EEPROM Array Page Buf YDEC
SCL SDA
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WP Memory Control Logic
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L24W02 8PIN SOP/DIP/TSSOP
A0~A2 Vcc Vss
Address Counter
Sense AMP R/W Control
Pin Description Pin Name A0~A2 SDA SCL WP Vss Vcc
I/O I I/O I I I
Description Address inputs Serial data inputs/output Serial clock data input Write protect Negative power supply Positive power supply
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L24W02 2K 2-Wire (256x8) 3V~5.5V CMOS Serial EEPROM
PRELIMINARY A
Absolute Maximum Ratings Operating Temperature (Commercial) .............................................................................. 0°C to 70°C Storage Temperature .....................................................................……...............…..... –50°C to 125°C Applied VCC Voltage with Respect to VSS ....................................................…….…...... –0.3V to 6.0V Applied Voltage on any Pin with Respect to VSS ............................………….…....….... –0.3V to VCC+0.3V Note: These are stress ratings only. Stresses exceeding the range specified under “Absolute Maximum Ratings” may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability. D.C. Characteristics Test Conditions Vcc Conditions VCC Operating Voltage — — ICC1 Operating Current 5V Read at 100kHz ICC2 Operating Current 5V Write at 100kHz VIL Input Low Voltage — — VIH Input High Voltage — — VOL Output Low Voltage 3V IOL=2.1mA ILI Input Leakage Current 5V VIN=0 or VCC ILO Output Leakage Current 5V VOUT=0 or VCC DataSheet4U.com ISTB1 Standby Current 5V VIN=0 or VCC ISTB2 Standby Current 3V VIN=0 or VCC CIN Input Capacitance (See Note) — f=1MHz 25°C COUT Output Capacitance (See Note) — f=1MHz 25°C Note: These parameters are periodically sampled but not 100% tested Symbol Parameter Min. 3 — — –1 0.7VCC — — — — — — — Ta=0°C to 70°C Typ. — — — — — — — — — — — — Max. Unit
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5.5 V 2 mA 5 mA 0.3Vcc V Vcc+0.5 V 0.4 V 1 µA 1 µA 5 µA 4 µA 6 pF 8 pF
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A.C. Characteristics Symbol .