128 Megabit (8 M x 16-Bit) CMOS 3.0 Volt-only,
Uniform Sector Flash Memory with VersatileI/0™ Control

General Description
The Am29LV642D is a 128 Mbit, 3.0 Volt (3.0 V to 3.6 V) single power supply Flash memory device. The device is designed to be programmed in-system with the standard system 3.0 Volt V_CC supply. A 12.0 Volt V_PP is not required for program or erase operations. The Am29LV642D offers access times of 90 and 120 ns and is offered in a 64-ball Fortified BGA package.

Distinctive Characteristics

Architectural Advantages

• Two 64 Megabit (Am29LV640D) in a single 64-ball 13 x 11 mm Fortified BGA
• Two Chip Enable pins
• Two CE# pins to control selection of each internal Am29LV640D devices
• VersatileI/O™ control
• Device generates data output voltages and tolerates data input voltages as determined by the voltage on the V_IO pin
• Manufactured on 0.23 µm process technology
• Flexible sector architecture
• Two hundred fifty-six 32 Kword sectors
• Compatible with JEDEC standards
• Except for the additional CE2# pin, the Fortified BGA is pinout and software compatible with single-power supply Flash
• Superior inadvertent write protection

• 64-ball Fortified BGA Package

Performance Characteristics

• Single power supply operation
• 3.0 to 3.6 volt read, erase, and program operations
• High performance
• Access times as fast as 90 ns
• Ultra low power consumption (typical values at 3.0 V, 5 MHz) for the part
• 9 mA typical active read current
• 26 mA typical erase/program current
• 400 nA typical standby mode current
• Minimum 1 million erase cycle guarantee per sector
• 20-year data retention at 125°C
• Reliable operation for the life of the system

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
• Unlock Bypass Mode Program Command
• Reduces overall programming time when issuing multiple program command sequences
• Program and Erase Performance (V_HH not applied to the ACC input pin)
• Word program time: 11 µs typical
• Sector erase time: 1.6 s typical for each 32 Kword sector

Hardware Features

• Sector Protection
• A hardware method to lock a sector to prevent program or erase operations within that sector
• Sectors can be locked in-system or via programming equipment
• Temporary Sector Unprotect feature allows code changes in previously locked sectors
• Ready/Busy# output (RY/BY#)
• Provides a hardware method of detecting program or erase cycle completion
• Hardware reset pin (RESET#)
• Hardware method to reset the device for reading array data
• ACC pin
• Accelerates programming time for higher throughput during system production