IC ST72F63BK2M1

The ST7263B Microcontrollers form a sub-family of the ST7 MCUs dedicated to USB applications. The devices are based on an industry-standard 8bit core and feature an enhanced instruction set. They operate at a 24 MHz or 12 MHz oscillator frequency. Under software control, the ST7263B MCUs may be placed in either Wait or Halt modes, thus reducing power consumption. The enhanced instruction set and addressing modes afford real programming potential. In addition to standard 8bit data management, the ST7263B MCUs feature true bit manipulation, 8x8 unsigned multiplication and indirect addressing modes. The devices include an ST7 Core, up to 16 Kbytes of program memory, up to 512 bytes of RAM, 19 I/O lines and the following on-chip peripherals: - USB low speed interface with 3 endpoints with programmable in/out configuration using the DMA architecture with embedded 3.3V voltage regulator and transceivers (no external components are needed). - 8-bit Analog-to-Digital converter (ADC) with 8 multiplexed analog inputs Figure 1. General Block Diagram
INTERNAL CLOCK OSCIN OSCOUT OSCILLATOR OSC/4 or OSC/2 (for USB) VDD VSS POWER SUPPLY WATCHDOG PORT B ADC PORT C SCI* (UART) USB SIE PC[2:0] (3 bits)
ADDRESS AND DATA BUS
- Industry standard asynchronous SCI serial interface (not on all products - see Table 1 Device Summary) - Watchdog - 16-bit Timer featuring an External clock input, 2 Input Captures, 2 Output Compares with Pulse Generator capabilities - Fast IC Multi Master interface (not on all products - see device summary) - Low voltage reset (LVD) ensuring proper poweron or power-off of the device The ST7263B devices are ROM versions. The ST72P63B devices are Factory Advanced Service Technique ROM (FASTROM) versions: they are factory-programmed and are not reprogrammable. The ST72F63B devices are Flash versions. They support programming in IAP mode (In-application programming) via the on-chip USB interface.

INTRODUCTION

Main Features

Depending on the overall Flash memory size in the microcontroller device, there are up to three user sectors (see Table 5). Each of these sectors can be erased independently to avoid unnecessary erasing of the whole Flash memory when only a partial erasing is required. The first two sectors have a fixed size of 4 Kbytes (see Figure 5). They are mapped in the upper part of the ST7 addressing space so the reset and interrupt vectors are located in Sector 0 (F000hFFFFh). Table 5. Sectors available in Flash devices

ST72F63BK2M1
SO34 (Shrink)
STMicroelectronics
SPEED 8-BIT FAMILY WITH FLASH/ROM, BYTES 8-BIT TIMER,