
AMIC Technology
General Description
The A29800B is an 8Mbit, 5.0 volt-only Flash memory organized as 1,048,576 bytes of 8 bits or 524,288 words of 16 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 is offered in 48-ball FBGA and 48-Pin TSOP packages. This device is designed to be programmed in-system with the standard system 5.0 volt VCC supply. Additional 12.0 volt VPP is not required for in-system write or erase operations. However, the A29800B can also be programmed in standard EPROM programmers.
The A29800B 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 A29800B has a second toggle bit, I/O2, to indicate whether the addressed sector is being selected for erase. The A29800B also offers the ability to program in the Erase Suspend mode. The standard A29800B offers access time of 55ns, 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.