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2 / 54 page ADVANCE INFORMATION This document contains information on a product under development at Advanced Micro Devices. The information is intended to help you evaluate this product. AMD reserves the right to change or discontinue work on this proposed product without notice. Publication# 26492 Rev: A Amendment:+1 Issue Date: January 27, 2003 Refer to AMD’s Website (www.amd.com) for the latest information. Am29DS320G 32 Megabit (4 M x 8-Bit/2 M x 16-Bit) CMOS 1.8 Volt-only, Simultaneous Operation Flash Memory DISTINCTIVE CHARACTERISTICS ARCHITECTURAL ADVANTAGES ■ Simultaneous Read/Write operations — Data can be continuously read from one bank while executing erase/program functions in another bank — Zero latency between read and write operations ■ Flexible BankTM architecture — Read may occur in any of the three banks not being written or erased. — Four banks may be grouped by customer to achieve desired bank divisions. ■ 256-byte SecSi (Secured Silicon) Sector — Factory locked and identifiable: 16 bytes available for secure, random factory Electronic Serial Number; verifiable as factory locked through autoselect function. ExpressFlash option allows entire sector to be available for factory-secured data — Customer lockable: One time programmable. Once locked, data cannot be changed. ■ Zero Power Operation — Sophisticated power management circuits reduce power consumed during inactive periods to nearly zero ■ Package options — 48-ball FBGA — 48-pin TSOP ■ Top or bottom boot blocks ■ Manufactured on 0.17 µm process technology ■ Compatible with JEDEC standards — Pinout and software compatible with single-power-supply flash standard PERFORMANCE CHARACTERISTICS ■ High performance — Access time as fast 70 ns — Program time: 4 µs/word typical utilizing Accelerate function ■ Ultra low power consumption (typical values) — 2 mA active read current at 1 MHz — 10 mA active read current at 5 MHz — 200 nA in standby or automatic sleep mode ■ Minimum 1 million erase cycles guaranteed per sector ■ 20 year data retention at 125°C — Reliable operation for the life of the system SOFTWARE FEATURES ■ Data Management Software (DMS) — AMD-supplied software manages data programming, enabling EEPROM emulation — Eases historical sector erase flash limitations ■ Supports Common Flash Memory Interface (CFI) ■ Erase Suspend/Erase Resume — Suspends erase operations to allow reading from other sectors in the same bank ■ Data# Polling and Toggle Bits — Provides a software method of detecting the status of program or erase cycles ■ Unlock Bypass Program command — Reduces overall programming time when issuing multiple program command sequences HARDWARE FEATURES ■ Any combination of sectors can be erased ■ Ready/Busy# output (RY/BY#) — Hardware method for detecting program or erase cycle completion ■ Hardware reset pin (RESET#) — Hardware method of resetting the internal state machine to the read mode ■ WP#/ACC input pin — Write protect (WP#) function allows protection of two outermost boot sectors, regardless of sector protect status — Acceleration (ACC) function accelerates program timing ■ Sector protection — Hardware method of locking a sector, either in-system or using programming equipment, to prevent any program or erase operation within that sector — Temporary Sector Unprotect allows changing data in protected sectors in-system |
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