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27LV256-25P Datasheet(PDF) 1 Page - Microchip Technology |
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27LV256-25P Datasheet(HTML) 1 Page - Microchip Technology |
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1 / 12 page  © 1996 Microchip Technology Inc. DS11020F-page 1 27LV256 FEATURES • Wide voltage range 3.0V to 5.5V • High speed performance - 200 ns access time available at 3.0V • CMOS Technology for low power consumption - 8 mA Active current at 3.0V - 20 mA Active current at 5.5V - 100 µA Standby current • Factory programming available • Auto-insertion-compatible plastic packages • Auto ID aids automated programming • Separate chip enable and output enable controls • High speed “Express” programming algorithm • Organized 32K x 8: JEDEC standard pinouts - 28-pin Dual-in-line package - 32-pin PLCC package - 28-pin SOIC package - 28-pin VSOP package - Tape and reel • Data Retention > 200 years • Available for the following temperature ranges: - Commercial: 0˚C to +70˚C - Industrial: -40˚C to +85˚C DESCRIPTION The Microchip Technology Inc. 27LV256 is a low volt- age (3.0 volt) CMOS EPROM designed for battery powered applications. The device is organized as a 32K x 8 (32K-Byte) non-volatile memory product. The 27LV256 consumes only 8 mA maximum of active cur- rent during a 3.0 volt read operation therefore improv- ing battery performance. This device is designed for very low voltage applications where conventional 5.0 volt only EPROMS can not be used. Accessing individ- ual bytes from an address transition or from power-up (chip enable pin going low) is accomplished in less than 200 ns at 3.0V. This device allows systems designers the ability to use low voltage non-volatile memory with today’s' low voltage microprocessors and peripherals in battery powered applications. A complete family of packages is offered to provide the most flexibility in applications. For surface mount appli- cations, PLCC, VSOP or SOIC packaging is available. Tape and reel packaging is also available for PLCC or SOIC packages. PACKAGE TYPES • 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 V A12 A7 A6 A5 A4 A3 A2 A1 A0 O0 O1 O2 V V A14 A13 A8 A9 A11 OE A10 CE O7 O6 O5 O4 O3 PP SS CC A6 A5 A4 A3 A2 A1 A0 NC O0 A8 A9 A11 NC OE A10 CE O7 O6 5 6 7 8 9 10 11 12 13 29 28 27 26 25 24 23 22 21 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 VPP A12 A7 A6 A5 A4 A3 A2 A1 A0 O0 O1 O2 VSS VCC A14 A13 A8 A9 A11 OE A10 CE O7 O6 O5 O4 O3 A10 CE 21 20 19 VSS O2 14 13 12 OE A11 A9 A8 22 23 24 VPP A12 A7 1 2 3 4 5 25 26 27 28 6 7 A13 A14 VCC A6 A5 A4 A3 O7 O6 O5 O4 O3 O1 O0 A0 A1 A2 18 17 16 15 11 10 9 8 PDIP PLCC SOIC VSOP 256K (32K x 8) Low-Voltage CMOS EPROM This document was created with FrameMaker404 |
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