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IS93C66-3GR Datasheet(PDF) 1 Page - Integrated Silicon Solution, Inc |
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IS93C66-3GR Datasheet(HTML) 1 Page - Integrated Silicon Solution, Inc |
1 / 10 page Integrated Silicon Solution, Inc. — 1-800-379-4774 1 Rev. G 04/26/01 ISSI reserves the right to make changes to its products at any time without notice in order to improve design and supply the best possible product. We assume no responsibility for any errors which may appear in this publication. © Copyright 2001, Integrated Silicon Solution, Inc. IS93C66-3 ISSI ® 4,096-BIT SERIAL ELECTRICALLY ERASABLE PROM OVERVIEW The IS93C66-3 is a low cost 4,096-bit, non-volatile, serial E2PROM. It is fabricated using ISSI's advanced CMOS E2PROM technology. The IS93C66-3 provides efficient non-volatile read/write memory arranged as 256 registers of 16 bits each. Seven 11-bit instructions control the operation of the device, which includes read, write, and mode enable functions. The data out pin (DOUT) indicates the status of the device during in the self-timed non-volatile programming cycle. The self-timed write cycle includes an automatic erase- before-write capability. To protect against inadvertent writes, the WRITE instruction is accepted only while the chip is in the write enabled state. Data is written in 16 bits per write instruction into the selected register. If Chip Select (CS) is brought HIGH after initiation of the write cycle, the Data Output (DOUT) pin will indicate the READY/ BUSY status of the chip. APPLICATIONS The IS93C66-3 is ideal for high-volume applications requiring low power and low density storage. This device uses a low cost, space saving 8-pin package. Candidate applications include robotics, alarm devices, electronic locks, meters and instrumentation settings. MARCH 2001 FUNCTIONAL BLOCK DIAGRAM FEATURES • State-of-the-art architecture — Non-volatile data storage — Low voltage operation: 3.0V (Vcc = 2.7V to 6.0V) — Full TTL compatible inputs and outputs — Auto increment for efficient data dump • Low voltage read operation — Down to 2.7V • Hardware and software write protection — Defaults to write-disabled state at power-up — Software instructions for write-enable/disable • Advanced low voltage CMOS E2PROM technology • Versatile, easy-to-use interface — Self-timed programming cycle — Automatic erase-before-write — Programming status indicator — Word and chip erasable — Stop SK anytime for power savings • Durable and reliable — 10-year data retention after 100K write cycles — 100,000 write cycles — Unlimited read cycles CS SK DIN DOUT DUMMY BIT R/W AMPS DATA REGISTER (16 BITS) ADDRESS REGISTER 1 OF 256 DECODER WRITE ENABLE HIGH VOLTAGE GENERATOR INSTRUCTION DECODE, CONTROL, AND CLOCK GENERATION INSTRUCTION REGISTER (11 BITS) EEPROM ARRAY (256 X 16) |
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