64Mb: 3V Embedded Parallel NOR Flash
Features
Parallel NOR Flash Embedded Memory
M29W640GH, M29W640GL
M29W640GT, M29W640GB
• Common Flash interface
– 64-bit security code
Features
• Supply voltage
– VCC = 2.7–3.6V (program, erase, read)
– VPP = 12V for fast program (optional)
• Asynchronous random/page read
– Page width: 4 words
– Page access: 25ns
– Random access: 60ns, 70ns, 90ns
• Fast program commands
• 128-word extended memory block
– Extra block used as security block or to store ad-
ditional information
• Low power consumption: Standby and automatic
mode
• 100,000 PROGRAM/ERASE cycles per block
• Electronic signature
– Manufacturer code: 0020h
– 2-word/4-byte program (without VPP = 12V)
– 4-word/8-byte program (with VPP = 12V)
– 16-word/32-byte write buffer
• Programming time
• Device summary: part number and device code
– M29W640GH: uniform, last block protected by
VPP/WP#
– 227Eh + 220Ch + 2201h
– M29W640GL: uniform, first block protected by
VPP/WP#
– 227Eh + 220Ch + 2200h
– M29W640GT: top boot block
– 227Eh + 2210h + 2201h
– M29W640GB: bottom boot block
– 227Eh + 2210h + 2200h
• RoHS-compliant packages
– 10µs per byte/word TYP
– Chip program time: 10 s (4-word program)
– Double word/quadruple byte program
• Memory organization
– M29W640GH/L 128 main blocks, 64KB each
– M29W640GT/B 127 main blocks, 64KB each and
8 boot blocks, 8KB each
• Program/erase controller
– Embedded byte/word program algorithms
• Program/erase suspend and resume
– Read from any block during a PROGRAM SUS-
PEND operation
– Read or program another block during an ERASE
SUSPEND operation
– 48-pin TSOP (N/NA) 12mm x 20mm
– 56-pin TSOP (NB) 14mm x 20mm
– 48-ball TFBGA (ZA) 6mm x 8mm
– 64-ball FBGA (ZS) 11mm x 13mm
– 64-ball TBGA (ZF) 10mm x 13mm
• Automotive certified parts available
• Hardware block protection
– VPP/WP# pin for fast program and write protect
– Temporary block unprotect mode
Part Numbering Information
Available with extended memory block prelocked by Micron. Devices are shipped from the factory with memory
content bits erased to 1. For available options, such as packages or speed, or for further information, contact your
Micron sales representative. Part numbers can be verified at www.micron.com. Feature and specification compari-
son by device type is available at www.micron.com/products. Contact the factory for devices not found.
Table 1: Part Number Information
Part Number
Category
Category Details
Device Type
M29 = Parallel Flash memory
PDF: 09005aef84e35115
m29W_640GH/L_GT/B.pdf - Rev. E 02/18 EN
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2013 Micron Technology, Inc. All rights reserved.
1
Products and specifications discussed herein are subject to change by Micron without notice.