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Am29DL322D/323D/324D
Data Sheet
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Publication Number 21534 Revision D
Amendment +6 Issue Date June 10, 2003
Am29DL322D/323D/324D
32 Megabit (4 M x 8-Bit/2 M x 16-Bit) CMOS 3.0 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 other bank. — Zero latency between read and write operations ■ Multiple bank architectures — Three devices available with different bank sizes (refer to Table 3) ■ SecSi (Secured Silicon) Sector — Current version of device has 64 Kbytes; future versions will have 256 bytes — 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: Can be read, programmed, or erased just like other sectors. Once locked, data cannot be changed ■ Zero Power Operation — Sophisticated power management circuits reduce power consumed during inactive periods to nearly zero. ■ Package options — 63-ball FBGA — 48-pin TSOP ■ Top or bottom boot block ■ Manufactured on 0.23 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: 7 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 write 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 programming in 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
Publication# 21534 Rev: D Amendment/+6 Issue Date: June 10, 2003
Refer to AMD’s Website (www.amd.com) for the latest information.
GENERAL DESCRIPTION
The Am29DL322D/323D/324D family consists of 32 megabit, 3.0 volt-only flash memory devices, organized as 2,097,152 words of 16 bits each or 4,194,304 bytes of 8 bits each. Word mode data appears on DQ0–DQ15; byte mode data appears on DQ0–DQ7. The device is designed to be programmed in-system with the standard 3.0 volt VCC supply, and can also be programmed in standard EPROM programmers. The devices are available with an access time of 70, 90 or 120 ns. The devices are offered in 48-pin TSOP and 63-ball FBGA packages. Standard control pins—chip enable (CE#), write enable (WE#), and output enable (OE#)—control normal read and write operations, and avoid bus contention issues. The devices requires onl.