EDI7F292MC Datasheet, PDF (1/33 Pages) White Electronic Designs Corporation – 4MB/8MB (2x2Mx8 / 4x2Mx8) Flash Module 5.0V, Boot-Only Sector Erase Flash Memory

White Electronic Designs
EDI7F292MC
EDI7F492MC
PRELIMINARY*
4MB/8MB (2x2Mx8 / 4x2Mx8) Flash Module 5.0V, Boot-Only
Sector Erase Flash Memory
ARCHITECHTURE
FEATURES
5.0 Volt ± 10% fir read and write operations
• Minimizes system level power requirements
Compatible with JEDEC-standards
• Pinout and software compatible with single-power
supply Flash
• Superior inadvertent write protection
80 SIMM (JEDEC)
Minimum 100,000 write/erase cycles guaranteed
High performance
• 70 ns maximum access time
Sector erase architecture
• Uniform sectors of 64 Kbytes each
• Any combination of sectors can be erased. Also
supports full chip erase
Group sector protection
• Hardware method that disables any combination
of sector groups from write or erase operations
(a sector group consists of 4 adjacent sectors of
64Kbytes each)
Embedded Erase Algorithms
• Automatically pre-programs and erases the chip
or any sector
Embedded Program Algorithms
• Automatically programs and verifies data at
specified address
Data# Polling and Toggle Bit feature for detection
of program or erase cycle completion
Ready/Busy# output (RY/BY#)
• Hardware method for detection of program or
erase cycle completion
Erase Suspend/Resume
• Supports reading or programming data to a
sector not being erased
Low power consumption (EDI7292MC)
• 50 mA typical active read current
• 60 mA typical program/erase current
Low power consumption (EDI7492MC)
• 100 mA typical active read current
• 120 mA typical program/erase current
Enhanced power management for standby mode
• <1 µA typical standby current
• Standard access time from standby mode
Hardware RESET# pin
• Resets internal state machine to the read mode
* This product is under development, is not qualified or characterized and is subject to
change without notice.
DESCRIPTION
The EDI7F292/492MC is a 32/64 Mbit, 5.0 Volt-only
Flash memory organized as 2 Megabytes of 8 bits each.
The 2Mbytes of data is divided into 32 sectors of 64
Kbytes for flexible erase capability. The 8 bits of data
appear on DQ0–DQ7. The EDI7F292/492MC is offered
in 80 Pin SIMM packages. This device is designed to be
programmed in-system with the standard system 5.0 Volt
VCC supply. 12.0 Volt VPP is not required for program or
erase operations. The device can also be reprogrammed
in standard EPROM programmers.
The standard EDI7F292/492MC offers access times of 100
ns, and 120 ns, allowing high-speed microprocessors to
operate without wait states. To eliminate bus contention,
the device has separate chip enable 4 CS#, write enable
WE#, and output enable OE# controls.
The EDI7F292/492MC is entirely command set compatible
with the JEDEC single-power supply Flash standard.
Commands are written to the command register using
standard microprocessor write timings. Register contents
serve as input to an internal state-machine that controls
the erase and programming circuitry. Write cycles also
internally latch addresses and data needed for the
programming and erase operations. Reading data out
of the device is similar to reading from 12.0 Volt Flash or
EPROM devices.
The EDI7F292/492MC is programmed by executing
the program command sequence. This will invoke the
Embedded Program Algorithm which is an internal
algorithm that automatically times the program pulse widths
and verifies proper cell margin. Erase is accomplished by
January 2006
Rev. 1
1
White Electronic Designs Corporation • [phone] • www.wedc.com