Am29BDS320G Datasheet

winni62 · Newbie Joined: Jul 11, 2009 Posts: 1

[url=Am29BDS320G Datasheet]Am29BDS320G Datasheet[/url]

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Description:

The Am29BDS320G is a 32 Mbit, 1.8 Volt-only, simultaneous Read/Write, Burst Mode Flash memory device, organized as 2,097,152 words of 16 bits each. This device uses a single VCC of 1.65 to 1.95 V to read, program, and erase the memory array. The device supports Enhanced VIO to offer up to 3V ompatible inputs and outputs. A 12.0-volt VID may be used for faster program performance if desired. The device can also be programmed in standard EPROM programmers.
At 54 MHz, the device provides a burst access of 13.5 ns at 30 pF with a latency of 87.5 ns at 30 pF. At 40 MHz, the device provides a burst access of 20 ns at 30 pF with a latency of 95 ns at 30 pF. The device operates within the industrial temperature range of -40°C to +85°C. The device is offered in the 64-ball FBGA package.
The Simultaneous Read/Write architecture provides simultaneous operation by dividing the memory space into four banks. The device can improve overall
system performance by allowing a host system to program or erase in one bank, then immediately and simultaneously read from another bank, with zero latency. This releases the system from waiting for the completion of program or erase operations.
Features:
· Sector Protection
— Software command sector locking
· Reduced Wait-State Handshaking feature available
— Provides host system with minimum possible latency by monitoring RDY
· Hardware reset input (RESET#)
— Hardware method to reset the device for reading array data
· WP# input
— Write protect (WP#) function protects sectors 0 and 1 (bottom boot), or sectors 68 and 69 (top boot), regardless of sector protect status
· ACC input: Acceleration function reduces programming time; all sectors locked when ACC = VIL
· CMOS compatible inputs, CMOS compatible outputs · Low VCC write inhibit
Software Features
· Supports Common Flash Memory Interface (CFI)
· Software command set compatible with JEDEC 42.4 standards
— Backwards compatible with Am29F and Am29LV families
· Data# Polling and toggle bits
— Provides a software method of detecting program and erase operation completion
· Erase Suspend/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
· Unlock Bypass Program command
— Reduces overall programming time when issuing multiple program command sequences

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