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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# 30450
Rev: A Amendment/+2
Issue Date: March 12, 2004
Refer to AMD’s Website (www.amd.com) for the latest information.
Am49DL3208G
Stacked Multi-Chip Package (MCP) Flash Memory and pSRAM
32 Megabit (2 M x 16-Bit) CMOS 3.0 Volt-only, Simultaneous Operation Flash Memory and
8 Mbit (512 K x 16-Bit) Pseudo Static RAM
DISTINCTIVE CHARACTERISTICS
MCP Features
■ Power supply voltage of 2.7 to 3.3 volt
■ High performance
— Access time as fast as 70 ns
■ Package
— 69-Ball FBGA
■ Operating Temperature
— –40°C to +85°C
Flash Memory Features
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 Bank
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.
■ Manufactured on 0.17 m process technology
■ SecSi (Secured Silicon) Sector: Extra 256 Byte 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: Sector is one-time programmable. Once
sector is locked, data cannot be changed.
■ Zero Power Operation
— Sophisticated power management circuits reduce power
consumed during inactive periods to nearly zero.
■ Top or bottom boot sectors
■ Compatible with JEDEC standards
— Pinout and software compatible with single-power-supply
flash standard
PERFORMANCE CHARACTERISTICS
■ High performance
— Access time as fast as 70 ns
— Program time: 4 s/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)
■ Program/Erase Suspend/Erase Resume
— Suspends program/erase operations to allow
programming/erasing 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 protects sectors 0 and 1
(bottom boot) or 69 and 70 (top boot), 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
Pseudo SRAM Features
■ Power dissipation
— Operating: 30 mA maximum
— Standby: 60 A maximum at V
CC = 3.0 V
■ High Performance
— Access time as fast as 55 ns
■ CE1ps# and CE2ps Chip Select
■ Power down features using CE1ps# and CE2ps
■ Data retention supply voltage: 2.7 to 3.3 volt
■ Byte data control: LB#s (DQ7–DQ0), UB#s (DQ15–DQ8)