GENERAL DESCRIPTION
The MX29LA32xMT/B is a 32-mega bit Flash memory organized as 4M bytes of 8 bits or 2M words of 16 bits. MXICs Flash memories offer the most cost-effective and reliable read/write non-volatile random access memory. The MX29LA32xMT/B is packaged in 48-pin TSOP, 48-ball CSP, 56-pin TSOP and 64-ball CSP. It is designed to be reprogrammed and erased in system or in standard EPROM programmers.

FEATURES
GENERAL FEATURES
• Single Power Supply Operation
    - 2.7 to 3.6 volt for read, erase, and program operations
• 4,194,304 x 8 / 2,097,152 x 16 switchable
• Sector structure
    - 8KB (4KW) x 8 and 64KB(32KW) x 63
• Latch-up protected to 250mA from -1V to VCC + 1V
• Low VCC write inhibit is equal to or less than 1.5V
• Compatible with JEDEC standard
    - Pin-out and software compatible to single power supply Flash

PERFORMANCE
• High Performance
    - Fast access time: 70R/90ns
    - Page read time: 25ns
    - Sector erase time: 0.5s (typ.)
    - Effective write buffer word programming time: 22us
    - 4 word/8 byte page read buffer
    - 16 word/ 32 byte write buffer: reduces programming time for multiple-word/byte updates
• Low Power Consumption
    - Active read current: 18mA(typ.)
    - Active write current: 50mA(typ.)
    - Standby current: 20uA(typ.)
• Minimum 100,000 erase/program cycle
• 20-years data retention

SOFTWARE FEATURES
• Support Common Flash Interface (CFI)
    - Flash device parameters stored on the device and provide the host system to access
• Program Suspend/Resume
    - Suspend program operation to read other sectors
• Erase Suspend/Erase Resume
    - Suspends sector erase operation to read data from or program data to another sector which is not being erased
• Status Reply
    - Data# polling & Toggle bits provide detection of program and erase operation completion

HARDWARE FEATURES
• Ready/Busy (RY/BY#) Output
    - Provides a hardware method of detecting program and erase operation completion
• Hardware Reset (RESET#) Input
    - Provides a hardware method to reset the internal state machine to read mode
• WP#/ACC input
    - Write protect (WP#) function allows protection of all sectors, regardless of sector protect status
    - ACC (high voltage) accelerates programming time for higher throughput during system

SECURITY
• Sector Protection/Chip Unprotect
    - Provides sector group protect function to prevent program or erase operation in the protected sector group
    - Provides chip unprotect function to allow code changes
• Sector Permanent Lock
    - A unique lock bit feature allows the content to be permanently locked
    (Please contact Macronix sales for specific information regarding this permanent lock feature)
• Secured Silicon Sector
    - Provides a 128-word OTP area for permanent, secure identification
    - Can be programmed and locked at factory or by customer

PACKAGE
• 48-pin TSOP (for MX29LA320MT/B)
• 48-ball CSP (for MX29LA320MT/B)
• 56-pin TSOP (for MX29LA321MT/B)
• 64-ball CSP (for MX29LA321MT/B)
• All Pb-free devices are RoHS Compliant