M89 FAMILY

The FLASH+PSD family of memory systems for microcontrollers (MCUs) brings In-System- Programmability (ISP) to Flash memory and programmable logic. The result is a simple and flexible solution for embedded designs.
FLASH+PSD devices combine many of the peripheral functions found in MCU based applications. FLASH+PSD provides a glueless interface to most commonly-used ROMless MCUs.

Table 2 summarizes all the devices in the M89 Family.

The FLASH+PSD device includes a JTAG Serial Programming interface, to allow In-System Programming (ISP) of the entire device. This feature reduces development time, simplifies the manufacturing flow, and dramatically lowers the
cost of field upgrades. Using ST's special Fast- JTAG programming, a design can be rapidly programmed into the FLASH+PSD.

The innovative FLASH+PSD family solves key problems faced by designers when managing discrete Flash memory devices, such as:
Complex address decoding
In-System (first-time) Programming (ISP)
Concurrent EEPROM or Flash memory programming (IAP).

The JTAG Serial Interface block allows In-System Programming (ISP). Embedded dual-bank memories eliminates the need for an external Boot