Am29F800T Volt-Only Flash Memory

General Description

The Am29F800 is an 8 Mbit, 5.0 Volt-only Flash memory organized as 1 Mbyte of 8 bits each or 512K words of 16 bits each. For flexible erase capability, the 8 Mbits of data are divided into 19 sectors as follows: one 16 Kbyte, two 8 Kbyte, one 32 Kbyte, and fifteen 64 Kbyte. Eight bits of data appear on DQ0–DQ7 in byte mode; in word mode 16 bits appear on DQ0–DQ15. The Am29F800 is offered in 44-pin SO and 48-pin TSOP packages. This device is designed to be programmed in-system with the standard system 5.0 Volt VCC supply. A VPP of 12.0 volts is not required for program or erase operations. The device can also be programmed in standard EPROM programmers.

Features

• DISTINCTIVE CHARACTERISTICS
• 5.0 V ± 10% for read and write operations
  • Minimizes system level power requirements
• Compatible with JEDEC standards
  • Pinout and software compatible with single-power-supply flash
  • Superior inadvertent write protection
• Package options
  • 44-pin SO
  • 48-pin TSOP
• Minimum 100,000 write/erase cycles guaranteed
• High performance
  • 70 ns maximum access time
• Sector erase architecture
  • One 16 Kbyte, two 8 Kbytes, one 32 Kbyte, and fifteen 64 Kbytes
• Any combination of sectors can be erased. Also supports full chip erase.
• Sector protection
• Hardware method that disables any combination of sectors from write or erase operations.
• Implemented using standard PROM programming equipment.
• Embedded Erase Algorithm
  • Automatically pre-programs and erases the chip or any sector
• Embedded Program Algorithm
  • Automatically programs and verifies data at specified address
• Data Polling and Toggle Bit feature for detection of program or erase cycle completion
• Ready/Busy output (RY/BY)
  • Hardware method for detection of program or erase cycle completion
• Erase Suspend/Resume
  • Supports reading data from or programming data to a sector not being erased
• Low power consumption
  • 20 mA typical active read current for Byte Mode
  • 28 mA typical active read current for Word Mode
  • 30 mA typical program/erase current
• Enhanced power management for standby mode
  • 1 mA typical standby current
• Boot Code Sector Architecture
  • T = Top sector
  • B = Bottom sector
• Hardware RESET pin
  • Resets internal state machine to the read mode