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IS93C56A-3PI Datasheet(PDF) 1 Page - Integrated Silicon Solution, Inc |
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IS93C56A-3PI Datasheet(HTML) 1 Page - Integrated Silicon Solution, Inc |
1 / 16 page Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774 1 Rev. A 05/02/06 IS93C56A IS93C66A ISSI ® Copyright © 2006 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any time without notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are advised to obtain the latest version of this device specification before relying on any published information and before placing orders for products. 2K-BIT/4K-BIT SERIAL ELECTRICALLY ERASABLE PROM MAY 2006 FUNCTIONAL BLOCK DIAGRAM CS SK DIN DOUT DUMMY BIT R/W AMPS DATA REGISTER ADDRESS REGISTER ADDRESS DECODER WRITE ENABLE HIGH VOLTAGE GENERATOR INSTRUCTION DECODE, CONTROL, AND CLOCK GENERATION EEPROM ARRAY 256/512x8 128/256x16 INSTRUCTION REGISTER FEATURES • Industry-standard Microwire Interface — Non-volatile data storage — Wide voltage operation: Vcc = 1.8V to 5.5V — Auto increment for efficient data dump • User Configured Memory Organization — By 16-bit or by 8-bit • Hardware and software write protection — Defaults to write-disabled state at power-up — Software instructions for write-enable/disable • Enhanced 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 — Chip select enables power savings • Durable and reliable — 40-year data retention after 1M write cycles — 1 million write cycles — Unlimited read cycles — Schmitt-trigger inputs • Industrial and Automotive Temperature Grade • Lead-free available DESCRIPTION The IS93C56A/66A are 2kb/4kb non-volatile, ISSI ® serial EEPROMs. They are fabricated using an enhanced CMOS design and process. The IS93C56A/66A contain power-efficient read/write memory, and organization of either 256/512 bytes of 8 bits or 128/256 words of 16 bits. When the ORG pin is connected to Vcc or left unconnected, x16 is selected; when it is connected to ground, x8 is selected. The IS93C56A/66A are fully backward compatible with IS93C56/66. An instruction set defines the operation of the devices, including read, write, and mode-enable functions. To protect against inadvertent data modification, all erase and write instructions are accepted only while the devices are write-enabled. A selected x8 byte or x16 word can be modified with a single WRITE or ERASE instruction. Additionally, the two instructions WRITE ALL or ERASE ALL can program an entire array. Once a device begins its self-timed program procedure, the data out pin (Dout) can indicate the READY/ BUSY status by raising chip select (CS). The self- timed write cycle includes an automatic erase- before-write capability. The devices can output any number of consecutive bytes/words using a single READ instruction. |
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