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24C320-ISN Datasheet(PDF) 1 Page - Microchip Technology |
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24C320-ISN Datasheet(HTML) 1 Page - Microchip Technology |
1 / 12 page 2004 Microchip Technology Inc. DS21227E-page 1 25AA320/25LC320/25C320 Device Selection Table Features: • Low-power CMOS technology: - Write current: 3 mA maximum - Read current: 500 µA typical - Standby current: 500 nA typical • 4096 x 8 bit organization • 32 byte page • Write cycle time: 5 ms maximum • Self-timed erase and write cycles • Block write protection: - Protect none, 1/4, 1/2 or all of array • Built-in write protection: - Power on/off data protection circuitry - Write enable latch - Write-protect pin • Sequential read • High reliability: - Endurance: 1M E/W cycles - Data retention: > 200 years - ESD protection: > 4000V • 8-pin PDIP, SOIC and TSSOP packages • 14-lead TSSOP package • Temperature ranges supported: Description: The Microchip Technology Inc. 25AA320/25LC320/ 25C320 (25XX320*) are 32 Kbit serial Electrically Erasable PROMs. The memory is accessed via a simple Serial Peripheral Interface (SPI™) compatible serial bus. The bus signals required are a clock input (SCK) plus separate data in (SI) and data out (SO) lines. Access to the device is controlled through a Chip Select (CS) input. Communication to the device can be paused via the hold pin (HOLD). While the device is paused, transitions on its inputs will be ignored, with the exception of Chip Select, allowing the host to service higher priority interrupts. Block Diagram Package Types Part Number VCC Range Max. Clock Frequency Temp. Ranges 25AA320 1.8-5.5V 1 MHz I 25LC320 2.5-5.5V 2 MHz I,E 25C320 4.5-5.5V 3 MHz I,E - Industrial (I): -40 °Cto +85°C - Automotive (E): -40°C to +125°C SI SO SCK CS HOLD WP Status Register I/O Control Memory Control Logic HV Generator EEPROM Array Page Y Decoder Sense Amp. R/W Control Logic VCC VSS Latches XDEC TSSOP PDIP, SOIC TSSOP CS SO WP VSS VCC HOLD SCK SI 1 2 3 4 8 7 6 5 HOLD VCC CS SO 1 2 3 4 8 7 6 5 SCK SI VSS WP NC CS SO NC WP VSS NC NC VCC HOLD NC SCK SI NC 1 2 3 4 14 13 12 11 510 9 78 6 32K SPI™ Bus Serial EEPROM *25XX320 is used in this document as a generic part number for the 25AA320/25LC320/25C320 devices. |
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