24CO04B-SM Datasheet

4k/8k 2.5v i 2 C Serial EePROMs


Features, Applications

Single supply with operation down to 2.5V Low power CMOS technology 1 mA active current typical 10 �A standby current typical 5 �A standby current typical at 3.0V Organized as two or four blocks of 256 bytes x 8) and 8) 2-wire serial interface bus, I2CTM compatible Schmitt trigger, filtered inputs for noise suppression Output slope control to eliminate ground bounce 100 kHz (2.5V) and 400 kHz (5V) compatibility Self-timed write cycle (including auto-erase) Page-write buffer for to 16 bytes 2 ms typical write cycle time for page-write Hardware write protect for entire memory Can be operated as a serial ROM Factory programming (QTP) available ESD protection 4,000V 1,000,000 erase/write cycles guaranteed Data retention > 200 years 8-pin DIP, or 14-lead SOIC packages Available for extended temperature ranges - Commercial (C): +70�C - Industrial (I): to +85�C


The Microchip Technology Inc. or 8K bit Electrically Erasable PROM. The device is organized as two or four blocks x 8-bit memory with a 2-wire serial interface. Low voltage design permits operation down to 2.5 volts with typical standby and active currents of only 5 �A and 1 mA respectively. The 24LC04B/08B also has a page-write capability for to 16 bytes of data. The 24LC04B/08B is available in the standard 8-pin DIP and both 8-lead and 14-lead surface mount SOIC packages.

Function Ground Serial Address/Data I/O Serial Clock Write Protect Input to 5.5V Power Supply No Internal Connection

VCC...................................................................................7.0V All inputs and outputs w.r.t. VSS.............. -0.3V to VCC + 1.0V Storage temperature..................................... to +150�C Ambient temp. with power applied................ to +125�C Soldering temperature of leads (10 seconds)............. +300�C ESD protection on all pins.................................................. 4 kV

*Notice: Stresses above those listed under "Maximum ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability.

VCC to +5.5V Commercial (C): Tamb to +70�C Industrial (I): Tamb to +85�C

Parameter WP, SCL and SDA pins: High level input voltage Low level input voltage Hysteresis of Schmitt trigger Inputs Low level output voltage Input leakage current Output leakage current Pin capacitance (all inputs/outputs) Operating current

1 30 Standby current 100 Note: This parameter is periodically sampled and not 100% tested.

Clock frequency Clock high time Clock low time SDA and SCL rise time SDA and SCL fall time START condition hold time START condition setup time Data input hold time Data input setup time STOP condition setup time Output valid from clock Bus free time FCLK THIGH TLOW TR TF THD:STA TSU:STA THD:DAT TSU:DAT TSU:STO TAA TBUF

(Note 1) (Note 1) After this period the first clock pulse is generated Only relevant for repeated START condition

(Note 2) Time the bus must be free before a new transmission can start

Output fall time from VIH min to VIL max Input filter spike suppression (SDA and SCL pins) Write cycle time Endurance 24LC04B 24LC08B

10M 1M Not 100% tested. CB = total capacitance of one bus line in pF. As a transmitter, the device must provide an internal minimum delay time to bridge the undefined region (minimum 300 ns) of the falling edge of SCL to avoid unintended generation of START or STOP conditions. The combined TSP and VHYS specifications are due to new Schmitt trigger inputs which provide improved noise and spike suppression. This eliminates the need for a Ti specification for standard operation. This parameter is not tested but guaranteed by characterization. For endurance estimates in a specific application, please consult the Total Endurance Model whcih can be obtained on our BBS or website.

Byte or Page mode cycles 25�C, Vcc = 5.0V, Block Mode (Note 4)



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