This document states the current technical specifications regarding the Spansion product(s) described herein. Spansion Inc. deems the products to have been in sufficient pro-

duction volume such that subsequent versions of this document are not expected to change. However, typographical or specification corrections, or modifications to the valid com-

binations offered may occur.

Publication Number S29AS008J_00

Revision 09

Issue Date November 9, 2011

Distinctive Characteristics

Architectural Advantages

 Single Power Supply Operation

– Full voltage range: 1.65 to 1.95 volt read and write operations for

battery-powered applications

 Manufactured on 110 nm Process Technology

 Secured Silicon Sector region

– 128-word/256-byte sector for permanent, secure identification

through an 8-word/16-byte random Electronic Serial Number,

accessible through a command sequence

– May be programmed and locked at the factory or by the customer

 Flexible Sector Architecture

– Eight 8 Kbyte and fifteen 64 Kbyte sectors (byte mode)

– Eight 4 Kword, and fifteen 32 Kword sectors (word mode)

 Sector Group Protection Features

– A hardware method of locking a sector to prevent any program or

erase operations within that sector

– Sectors can be locked in-system or via programming equipment

– Temporary Sector Group Unprotect feature allows code changes in

previously locked sectors

 Unlock Bypass Program Command

– Reduces overall programming time when issuing multiple program

command sequences

 Top or Bottom Boot Block Configurations Available

 Compatibility with JEDEC standards

– Pinout and software compatible with single-power supply Flash

– Superior inadvertent write protection

Performance Characteristics

 High Performance

– Access times as fast as 70 ns

– Industrial temperature range (-40°C to +85°C)

– Word programming time as fast as 6 µs (typical)

 Ultra Low Power Consumption (typical values at 5 MHz)

– 15 µA Automatic Sleep mode current

– 8 µA standby mode current

– 8 mA read current

– 20 mA program/erase current

 Cycling Endurance: 1,000,000 cycles per sector typical

 Data Retention: 20 years typical

Package Options

 48-ball BGA

 48-pin TSOP

Software Features

 CFI (Common Flash Interface) Compliant

– Provides device-specific information to the system, allowing host

software to easily reconfigure for different Flash devices

 Erase Suspend/Erase 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

 Data# Polling and Toggle Bits

– Provides a software method of detecting program or erase operation

completion

Hardware Features

 Ready/Busy# Pin (RY/BY#)

– Provides a hardware method of detecting program or erase cycle

completion

 Hardware Reset Pin (RESET#)

– Hardware method to reset the device to reading array data

 WP# input pin

– Write protect (WP#) function allows protection of two outermost

boot sectors (boot sector models only), regardless of sector group

protect status

S29AS008J

8 Megabit (1M x 8-Bit / 512K x 16-Bit)

CMOS 1.8 Volt-Only Boot Sector Flash Memory

Data Sheet