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

General Description
The Am29LV641GH/L / Am29LV640GU are 64 Mbit, 3.0 volt (2.7 V to 3.6 V) single power supply flash memory devices organized as 4,194,304 words. Data appears on DQ15-DQ0. These devices are designed to be programmed in-system with the standard system 3.0 volt VCC supply. A 12.0 volt VPP is not required for program or erase operations. The device can also be programmed in standard EPROM programmers.

Distinctive Characteristics

Architectural Advantages

• Single power supply operation
  
  • 2.7 to 3.6 volt read, erase, and program operations
    
• 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
    
• VersatileI/O™ control
  
  • Device generates data output voltages and tolerates data input voltages as determined by the voltage on the VIO pin
    
• Manufactured on 0.17 µm process technology
  
• Flexible sector architecture
  
  • One hundred twenty-eight 32 Kword sectors
    
• Compatibility with JEDEC standards
  
• Pinout and software compatible with single-power supply Flash standard
  
• Package options
  
  • 48-pin TSOP and Reverse TSOP (LV641GH/L only)
    
  • 63-ball Fine-pitch BGA (LV640GU only)
    
  • 64-ball Fortified BGA (LV640GU only)
    
• Minimum 1 million erase cycle guarantee per sector
  
• 20-year data retention at 125°C

Performance Characteristics

• High performance
  
• Access time ratings as fast as 70 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
    
• Program and erase performance (VHH not applied to the ACC input pin)
  
  • Word program time: 7 µs typical
    
  • Sector erase time: 0.6 s typical for each 32 Kword sector

   

Software Hardware Features

• Hardware features
  
  • Hardware reset input (RESET#): resets device for new operation
    
  • WP# input: protects first or last 32 Kword sector regardless of sector protection settings
    (LV641GH/L only)
    
  • ACC input: Accelerates programming time for higher throughput during system production
• Software features
  
  • Program Suspend & Resume: read other sectors before programming operation is completed
    
  • Sector Group Protection: VCC-level method of preventing program or erase operations within a sector
    
  • Temporary Sector Group Unprotect: VID-level method of changing in previously locked sectors
    
  • CFI (Common Flash Interface) compliant: allows host system to identify and accommodate multiple flash devices
    
  • Erase Suspend/Erase Resume: read/program other sectors before an erase operation is complete
    
  • Data# Polling and toggle bits provide erase and programming operation status
    
  • Unlock Bypass Program command reduces overall multiple-word programming time