FAIRCHILD

GENERAL DESCRIPTION

The S70GL256M00 consists of two 128 Mbit, 3.0 volt single power supply flash memory devices and is organized as 8,388,608 doublewords or 16,777,216 words. The device has a 32-bit wide data bus that can also function as an 16-bit wide data bus by using the WORD# input. The device can be programmed either in the host system or in standard EPROM programmers.

Distinctive Characteristics

ARCHITECTURAL ADVANTAGES
■ Single power supply operation
— 3 volt read, erase, and program operations
■ VersatileI/OTM control
— Device generates data output voltages and tolerates
data input voltages on the CE# and DQ inputs/outputs
as determined by the voltage on the VIO pin; operates
from 1.65 to 3.6 V
■ Manufactured on 0.23 µm MirrorBitTM process technology
■ SecSi™ (Secured Silicon) Sector region
— 128-doubleword/256-word sector for permanent,
secure identification through an
8-doubleword/16-word random Electronic Serial
Number, accessible through a command sequence
— May be programmed and locked at the factory or by
the customer
■ Flexible sector architecture
— Two hundred fifty-six 32 Kdoubleword (64 Kword) sectors
■ Compatibility with JEDEC standards
— Provides pinout and software compatibility for
single-power supply flash, and superior inadvertent
write protection
■ 100,000 erase cycles typical per sector
■ 20-year data retention typical

PERFORMANCE CHARACTERISTICS

■ High performance
— 110 ns access time
— 30 ns page read times
— 0.5 s typical sector erase time
— 15 µs typical write buffer doubleword programming
time: 16-doubleword/32-word write buffer reduces
overall programming time for multiple-word updates
— 4-doubleword/8-word page read buffer
— 16-doubleword/32-word write buffer
■ Low power consumption (typical values at 3.0 V, 5 MHz)
— 26 mA typical active read current
— 100 mA typical erase/program current
— 2 µA typical standby mode current
■ Package options
— 80-ball Fortified BGA

**SOFTWARE & HARDWARE FEATURES **

■ Software features
— Program Suspend & Resume: read other sectors
before programming operation is completed
— Erase Suspend & Resume: read/program other
sectors before an erase operation is completed
— Data# polling & toggle bits provide status
— Unlock Bypass Program command reduces overall
programming time
— CFI (Common Flash Interface) compliant: allows host
system to identify and accommodate multiple flash
devices
■ Hardware features
— Sector Group Protection: hardware-level method of
preventing write operations within a sector group
— Temporary Sector Group Unprotect: VID-level method
of changing code in locked sector groups
— WP#/ACC input accelerates programming time
(when high voltage is applied) for greater throughput
during system production. Protects first or last sector
group regardless of sector group protection settings
— Hardware reset input (RESET#) resets device
— Ready/Busy# output (RY/BY#) detects program or
erase cycle completion