HomedatasheetPSD4212G1-90UT

PSD4212G1-90UT Datasheet

Flash In-System Programmable (ISP) Peripherals For 16-bit MCUs (5V Supply)
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Description

SUMMARY DESCRIPTION
The 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. PSD devices combine many of the peripheral functions found in MCU based ap plications.
PSD devices integrate an optimized Macrocell logic architecture. The Macrocell was created to address the unique requirements of embedded system designs. It allows direct connection between the system address/data bus, and the internal PSD registers, to simplify communication between the MCU and other supporting devices.

FEATURES SUMMARY
PSD provides an integrated solution to 16-bit MCU based applications that includes configurable memories, PLD logic and I/O:
■ Dual Bank Flash Memories
   – 4 Mbit of Primary Flash Memory (8 uniform sectors, 32K x 16)
   – 256 Kbit Secondary Flash Memory with 4 sectors
   – Concurrent operation: read from one memory while erasing and writing the other
■ 64 Kbit SRAM (Battery Backed)
■ 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
■ Seven l/O Ports with 52 I/O pins
   – 52 individually configurable I/O port pins that can be used for the following functions:
   – MCU I/Os
   – PLD I/Os
   – Latched MCU address output
   – Special function l/Os – l/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
■ High Endurance:
   – 100,000 Erase/Write Cycles of Flash Memory
   – 1,000 EraseWrite Cycles of PLD
   – 15 Year Data Retention
■ Single Supply Voltage
   – 5V ±10%
■ Memory Speed
   – 70ns Flash memory and SRAM access time

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Manufacturer information

STMICROELECTRONICS

STMicroelectronics is a global independent semiconductor company and is a leader in developing and delivering semiconductor solutions across the spectrum of microelectronics applications. An unrivaled combination of silicon and system expertise, manufacturing strength, Intellectual Property (IP) portfolio and strategic partners positions the Company at the forefront of System-on-Chip (SoC) technology and its products play a key role in enabling today's convergence trends

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