Summary description
The PSD8XXFX family of memory systems for microcontrollers (MCUs) brings in-systemprogrammability (ISP) to Flash memory and programmable logic. The result is a simple and flexible solution for embedded designs. PSD devices combine many of the peripheral functions found in MCU based applications.

Features
■ Flash in-system programmable (ISP)
   peripheral for 8-bit MCUs
■ Dual bank Flash memories
   – Up to 2 Mbit of primary Flash memory (8
      uniform sectors, 32K x8)
   – Up to 256 Kbit secondary Flash memory (4
      uniform sectors)
   – Concurrent operation: read from one
      memory while erasing and writing the other
■ Up to 256 Kbit SRAM
■ 27 reconfigurable I/Oports
■ Enhanced JTAG serial port
■ PLD with macrocells
   – Over 3000 gates of PLD: CPLD and DPLD
   – CPLD with 16 output macrocells (OMCs)
      and 24 input macrocells (IMCs)
   – DPLD - user defined internal chip select
      decoding
■ 27 individually configurable I/O port pins
   They can be used for the following functions:
   – MCU I/Os
   – PLD I/Os
   – Latched MCU address output
   – Special function I/Os.
   – 16 of the I/O ports may be configured as
      open-drain outputs.
■ In-system programming (ISP) with JTAG
   – Built-in JTAG compliant serial port allows
      full-chip in-system programmability
   – Efficient manufacturing allow easy product
      testing and programming
   – Use low cost FlashLINK cable with PC
■ Page register
   – Internal page register that can be used to
      expand the microcontroller address space
      by a factor of 256
■ Programmable power management
■ Packages are ECOPACK®