Features: ·Single power supply operation- Regulated voltage range: 2.7 to 3.6 volt read and writeoperations for compatibility with high performance 3 voltmicroprocessors·Access times:- 70/80/90/120 (max.)·Current:- 2mA active read current at 1MHz- 10mA active read current at 5MHz- 20 mA typical pr...
A29L320A: Features: ·Single power supply operation- Regulated voltage range: 2.7 to 3.6 volt read and writeoperations for compatibility with high performance 3 voltmicroprocessors·Access times:- 70/80/90/120 ...
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Features: Single power supply operation- Full voltage range: 2.7 to 3.6 volt read and write operat...
The A29L320A is a 32Mbit, 3.3 volt-only Flash memory organized as 2,097,152 words of 16 bits or 4,194,304 bytes of 8 bits each. The 8 bits of data appear on I/O0 - I/O7; the 16 bits of data appear on I/O0~I/O15. The A29L320A is offered in 48-ball TFBGA and 48-Pin TSOP packages.
This device is designed to be programmed in-system with the standard system 3.3 volt VCC supply. Additional 12.0 volt VPP is not required for in-system write or erase operations. However, the A29L320A can also be programmed in standard EPROM programmers. The A29L320A has the first toggle bit, I/O6, which indicates whether an Embedded Program or Erase is in progress, or it is in the Erase Suspend. Besides the I/O6 toggle bit, the A29L320A has a second toggle bit, I/O2, to indicate whether the addressed sector is being selected for erase. The A29L320A also offers the ability to program in the Erase Suspend mode. The standard A29L320A offers access times of 70,80,90 and 120ns, allowing high-speed microprocessors to operate without wait states. To eliminate bus contention the device has separate chip enable (CE ), write enable (WE ) and output enable (OE ) controls.
The device A29L320A requires only a single 3.3 volt power supply for both read and write functions. Internally generated and regulated voltages are provided for the program and erase operations.
The A29L320A is entirely software command set compatible with the JEDEC single-power-supply Flash standard. Commands are written to the command register using standard microprocessor write timings. Register contents serve as input to an internal state-machine that controls the erase and programming circuitry. Write cycles also internally latch addresses and data needed for the programming and