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doc5174 - Features Low-voltage and Standard-voltage...

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Features Low-voltage and Standard-voltage Operation – 1.8 (V CC = 1.8 to 3.6V) Internally Organized 4096 x 8, 8192 x 8 2-Wire Serial Interface Schmitt Trigger, Filtered Inputs for Noise Suppression Bi-directional Data Transfer Protocol 1 MHz (3.6V) and 400 KHz (1.8V Compatibility) Write Protect Pin for Hardware Data Protection 32-Byte Page Write Mode (Partial Page Writes Allowed) Self-Timed Write Cycle (5 ms max) High Reliability – Endurance: 1 Million Write Cycles – Data Retention: 100 Years Lead-free/Halogen-free Devices 8-lead PDIP, 8-lead JEDEC SOIC, 8-lead TSSOP, 8-lead Ultra Thin Mini-MAP (MLP2x3), and 8-ball dBGA2 Packages. Die Sales: Wafer Form, Tape and Reel, and Bumped Wafers Description The AT24C32C/64C provides 32,768/65,536 bits of serial electrically erasable and programmable read only memory (EEPROM) organized as 4096/8192 words of 8 bits each. The device’s cascadable feature allows up to 8 devices to share a common 2- wire bus. The device is optimized for use in many industrial and commercial applica- tions where low power and low voltage operation are essential. The AT24C32C/64C is available in space saving 8-lead PDIP, 8-lead JEDEC SOIC, 8-lead TSSOP, 8-lead Ultra Thin Mini-MAP (MLP2x3) and, 8-ball dBGA2 packages and is accessed via a 2- wire serial interface. In addition, the entire family is available in 1.8V (1.8 to 3.6V) version. 2-Wire Serial EEPROM 32K (4096 x 8) 64K (8192 x 8) AT24C32C AT24C64C Preliminary 5174C–SEEPR–06/07 2-Wire, 32K Serial E 2 PROM Pin Configurations Pin Name Function A0 - A2 Address Inputs SDA Serial Data SCL Serial Clock Input WP Write Protect GND Ground VCC Power Supply 8-lead Ultra Thin Mini-MAP (MLP 2x3) A0 A1 A2 GND VCC WP SCL SDA 1 2 3 4 8 7 6 5 Bottom View 8-lead PDIP 1 2 3 4 8 7 6 5 A0 A1 A2 GND VCC WP S CL S DA 8-lead TSSOP 1 2 3 4 8 7 6 5 A0 A1 A2 GND VCC WP S CL S DA 8-lead SOIC 1 2 3 4 8 7 6 5 A0 A1 A2 GND VCC WP S CL S DA 8-ball dBGA2 A0 A1 A2 GND VCC WP SCL SDA 1 2 3 4 8 7 6 5 Bottom View
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2 5174B–SEEPR–06/07 AT24C64C 1. Block Diagram Absolute Maximum Ratings* Operating Temperature. ..................................... -55 to +125 ° C *NOTICE: Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent dam- age to the device. This is a stress rating only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Storage Temperature. ........................................ -65 to +150 ° C Voltage on Any Pin with Respect to Ground . ...................................... -1.0 to +5.0V Maximum Operating Voltage . ........................................... 4.3V DC Output Current. ....................................................... 5.0 mA START STOP LOGIC VCC GND WP SCL SDA A 2 A 1 A 0 SERIAL CONTROL LOGIC EN H.V. PUMP/TIMING EEPROM DATA RECOVERY SERIAL MUX X DEC D OUT /ACK LOGIC COMP LOAD INC DATA WORD ADDR/COUNTER Y DEC R/W D OUT D IN LOAD DEVICE ADDRESS COMPARATOR
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3 5174B–SEEPR–06/07 AT24C64C 2. Pin Description SERIAL CLOCK (SCL): The SCL input is used to positive edge clock data into each EEPROM device and negative edge clock data out of each device.
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doc5174 - Features Low-voltage and Standard-voltage...

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