AM29LV040B-90JC

GENERAL DESCRIPTIONThe Am29LV040B is a single power supply, 4 Mbit, 3.0 Volt-only Flash memory device organized as 524,288 bytes. The data appears on DQ0-DQ7. The device is available in 32-pin PLCC and 32-pin TSOP packages. All read, erase, and program operations are accomplished using only a single power supply. The device can also be programmed in standard EPROM programmers.DISTINCTIVE CHARACTERISTICS■ Single power supply operation — Full voltage range: 2.7 to 3.6 volt read and write operations for battery-powered applications — Regulated voltage range: 3.0 to 3.6 volt read and write operations and for compatibility with high performance 3.3 volt microprocessors■ Manufactured on 0.32 µm process technology■ High performance — Full voltage range: access times as fast as 70 ns — Regulated voltage range: access times as fast as 60 ns■ Ultra low power consumption (typical values at 5 MHz) — Automatic sleep mode: 0.2 µA — Standby mode: 0.2 µA — Read mode: 7 mA — Program/erase mode: 15 mA■ Flexible sector architecture — Eight 64 Kbyte sectors — Any combination of sectors can be erased; supports full chip erase — Sector Protection features: Hardware method of locking a sector to prevent any program or erase operations within that sector Sectors can be locked via programming equipment■ Unlock Bypass Program Command — Reduces overall programming time when issuing multiple program command sequences■ Embedded Algorithms — Embedded Erase algorithms automatically preprogram and erase the entire chip or any combination of designated sectors — Embedded Program algorithms automatically writes and verifies data at specified addresses ■ Minimum 1,000,000 erase cycles guaranteed■ 20-year data retention at 125°C — Reliable operation for the life of the system■ Package option — 32-pin PLCC — 32-pin TSOP■ Compatibility with JEDEC standards — Pinout and software compatible with singlepower supply Flash — Superior inadvertent write protection■ Data# Polling and toggle bits — Provides a software method of detecting program or erase cycle completion■ Erase Suspend/Resume — Supports reading data from or programming data to a sector not being erased

主要特徵

• Hardware method of locking a sector to prevent any program or erase operations within that sector
• Sectors can be locked via programming equipment
• Unlock Bypass Program Command
• — Reduces overall programming time when issuing multiple program command sequences
• Embedded Algorithms
• — Embedded Erase algorithms automatically preprogram and erase the entire chip or any combination of designated sectors
• — Embedded Program algorithms automatically writes and verifies data at specified addressesMinimum 1,000,000 erase cycles guaranteed
• 20-year data retention at 125°C
• — Reliable operation for the life of the system
• Package option
• — 32-pin PLCC
• — 32-pin TSOP
• Compatibility with JEDEC standards
• — Pinout and software compatible with singlepower supply Flash
• — Superior inadvertent write protection
• Data# Polling and toggle bits
• — Provides a software method of detecting program or erase cycle completion
• Erase Suspend/Resume
• — Supports reading data from or programming data to a sector not being erased