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AT34C02C Datasheet(PDF) 2 Page - ATMEL Corporation |
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AT34C02C Datasheet(HTML) 2 Page - ATMEL Corporation |
2 / 18 page 2 5242B–SEEPR–01/09 AT34C02C Figure 1. Block Diagram 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. SERIAL DATA (SDA): The SDA pin is bidirectional for serial data transfer. This pin is open- drain driven and may be wire-ORed with any number of other open-drain or open collector devices. DEVICE/PAGE ADDRESSES (A2, A1, A0): The A2, A1, and A0 pins are device address inputs that are hardwired (directly to GND or to Vcc) for compatibility with other AT24Cxx devices. When the pins are hardwired, as many as eight 2K devices may be addressed on a single bus system. (Device addressing is discussed in detail under “Device Addressing,” page 9.) A device is selected when a corresponding hardware and software match is true. If these pins are left floating, the A2, A1, and A0 pins will be internally pulled down to GND. However, due to capaci- Absolute Maximum Ratings* Operating Temperature..................................–55°C 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 °C to +150°C Voltage on Any Pin with Respect to Ground .................................... –1.0V to +7.0V Maximum Operating Voltage .......................................... 6.25V DC Output Current........................................................ 5.0 mA DOUT/ACK LOGIC DOUT DIN A0 SDA GND A1 SCL VCC A2 Y DEC DATA WORD ADDR/COUNTER SERIAL CONTROL LOGIC START STOP LOGIC DEVICE ADDRESS COMPARATOR SERIAL MUX EEPROM EN COMP INC LOAD LOAD R/W H.V. PUMP/TIMING DATA RECOVERY WP WRITE PROTECT CIRCUITRY SOFTWARE WRITE PROTECTED AREA (00H - 7FH) |
Similar Part No. - AT34C02C_14 |
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Similar Description - AT34C02C_14 |
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