64 Megabit (4 M x 16-Bit) CMOS 3.0 Volt-only,
Uniform Sector Flash Memory with VersatileI/O™ Control

General Description
The Am29LV640DU/Am29LV641DU is a 64 Mbit, 3.0 Volt (3.0V to 3.6V) single power supply Flash Memory. 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 device can also be programmed in standard EPROM programmers. Access times of 90 and 120 ns are available for applications where V_IO >= V_CC. Access times of 100 and 120 ns are available for applications where V_IO < V_CC. The device is offered in 48-pin TSOP, 56-pin SSOP, and 63-ball FBGA packages.

Distinctive Characteristics

Architectural Advantages

• Single power supply operation
• 3.0 to 3.6 Volt read, erase, and program operations
• VersatileI/O™ control
• Device generates data output voltages and tolerates data input voltages as determined by the voltage on the VIO pin
• Manufactured on 0.23 µm process technology
• SecSi™ (Secured Silicon) Sector region
• 128-word sector for permanent, secure identification through an 8-word random Electronic Serial Number
• May be programmed and locked at the factory or by the customer
• Accessible through a command sequence
• Flexible sector architecture
• One hundred twenty-eight 32 Kword sectors
• Compatible with JEDEC standards
• Pinout and software compatible with single power supply Flash
• Superior inadvertent write protection

• 48-pin TSOP (Am29LV641DH/DL only)
• 56-pin SSOP (Am29LV640DH/DL only)
• 63-ball FBGA (Am29LV640DU only)

Performance Characteristics

• High performance
• Access times as fast as 90 ns
• Ultra low power consumption (typical values at 3.0 V, 5 MHz)
• 9 mA typical active read current
• 26 mA typical erase/program current
• 200 nA typical standby mode current
• Minimum 1 million erase cycle guarantee per sector
• Program and Erase Performance (VHH 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

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

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# pin (RY/BY#) (Am29LV640DU in FBGA package only)
• 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
• WP# pin (Am29LV641DH/DL in TSOP, Am29LV640DH/DL in SSOP only)
• At V_IL, protects the first or last 32 Kword sector, regardless of sector protect/unprotect status
• At V_IH, allows removal of sector protection
• An internal pull up to VCC is provided
• ACC pin
• Accelerates programming time for higher throughput during system production