AM29BDS128H datasheet(3/89 Pages) SPANSION

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DATA SHEET

Publication# 27024

Rev: B Amendment: 3

Issue Date: May 10, 2006

Am29BDS128H/Am29BDS640H

128 or 64 Megabit (8 M or 4 M x 16-Bit)

CMOS 1.8 Volt-only Simultaneous Read/Write, Burst Mode Flash Memory

DISTINCTIVE CHARACTERISTICS

ARCHITECTURAL ADVANTAGES

■ Single 1.8 volt read, program and erase (1.65 to 1.95 volt)

■ Manufactured on 0.13 µm process technology

■ VersatileIO™ (VIO) Feature

— Device generates data output voltages and tolerates data

input voltages as determined by the voltage on the VIO pin

— 1.8V compatible I/O signals

■ Simultaneous Read/Write operation

— Data can be continuously read from one bank while

executing erase/program functions in other bank

— Zero latency between read and write operations

— Four bank architecture:

128 Mb has 16/48/48/16 Mbit banks

64 Mb has 8/24/24/8 Mbit banks

■ Programable Burst Interface

— 2 Modes of Burst Read Operation

— Linear Burst: 8, 16, and 32 words with wrap-around

— Continuous Sequential Burst

■ SecSiTM (Secured Silicon) Sector region

— Up to 128 words accessible through a command sequence

— Up to 64 factory-locked words

— Up to 64 customer-lockable words

■ Sector Architecture

— Banks A and D each contain both 4 Kword sectors and 32

Kword sectors; Banks B and C contain ninety-six 32 Kword

sectors

— Sixteen 4 Kword boot sectors

Half of the boot sectors are at the top of the address range;

half are at the bottom of address range

■ Minimum 1 million erase cycle guarantee per sector

■ 20-year data retention at 125°C

— Reliable operation for the life of the system

■ 80-ball FBGA package (128 Mb) or 64-ball FBGA (64 Mb)

package

PERFORMANCE CHARCTERISTICS

■ Read access times at 75/66/54 MHz (CL=30 pF)

— Burst access times of 9.3/11/13.5 ns at industrial

temperature range

— Synchronous latency of 49/56/69 ns

— Asynchronous random access times of 45/50/55 ns

■ Power dissipation (typical values, CL = 30 pF)

— Burst Mode Read: 10 mA

— Simultaneous Operation: 25 mA

— Program/Erase: 15 mA

— Standby mode: 0.2 µA

HARDWARE FEATURES

■ Handshaking feature

— Provides host system with minimum possible latency by

monitoring RDY

— Reduced Wait-state handshaking option further reduces

initial access cycles required for burst accesses beginning on

even addresses

■ Hardware reset input (RESET#)

— Hardware method to reset the device for reading array data

■ WP# input

— Write protect (WP#) function allows protection of the four

highest and four lowest 4 kWord boot sectors, regardless of

sector protect status

■ Persistent Sector Protection

— A command sector protection method to lock combinations of

individual sectors and sector groups to prevent program or

erase operations within that sector

— Sectors can be locked and unlocked in-system at VCC level

■ Password Sector Protection

— A sophisticated sector protection method to lock

combinations of individual sectors and sector groups to

prevent program or erase operations within that sector using

a user-defined 64-bit password

■ ACC input: Acceleration function reduces programming

time; all sectors locked when ACC = VIL

■ CMOS compatible inputs, CMOS compatible outputs

■ Low VCC write inhibit

SOFTWARE FEATURES

■ Supports Common Flash Memory Interface (CFI)

■ Software command set compatible with JEDEC 42.4

standards

— Backwards compatible with Am29F and Am29LV families

■ Data# Polling and toggle bits

— Provides a software method of detecting program and erase

operation completion

■ Erase Suspend/Resume

— Suspends an erase operation to read data from, or program

data to, a sector that is not being erased, then resumes the

erase operation

■ Unlock Bypass Program command

— Reduces overall programming time when issuing multiple

program command sequences

■ Burst Suspend/Resume

— Suspends a burst operation to allow system use of the

address and data bus, than resumes the burst at the previous

state

The Am29BDS640H has been retired and is not recommended for designs. For new designs, S29WS064K supersedes Am29BDS640H. Please refer to the S29WS-K family data sheet for

specifications and ordering information. The Am29BDS128H is available and is not affected by this revision.

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