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ST72E631K2D1 Datasheet(PDF) 5 Page - STMicroelectronics |
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ST72E631K2D1 Datasheet(HTML) 5 Page - STMicroelectronics |
5 / 109 page ST7263 5/109 1 GENERAL DESCRIPTION 1.1 INTRODUCTION The ST7263 Microcontrollers form a sub family of the ST7 dedicated to USB applications. The de- vices are based on an industry-standard 8-bit core and feature an enhanced instruction set. They op- erate at a 24MHz or 12 MHz oscillator frequency. Under software control, the ST7263 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 8-bit data man- agement, the ST7263 MCUs feature true bit ma- nipulation, 8x8 unsigned multiplication and indirect addressing modes. The devices include an ST7 Core, up to 16K program memory, up to 512 bytes RAM, 19 I/O lines and the following on-chip pe- ripherals: – 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 compo- nents are needed). – 8-bit Analog-to-Digital converter (ADC) with 8 multiplexed analog inputs – industry standard asynchronous SCI serial inter- face (not on all products - see device summary below) – digital Watchdog – 16-bit Timer featuring an External clock input, 2 Input Captures, 2 Output Compares with Pulse Generator capabilities – fast I2C Multi Master interface (not on all prod- ucts - see device summary) – Low voltage (LVD) reset ensuring proper power- on or power-off of the device All ST7263 MCUs are available in ROM and OTP versions. The ST72E631 is the EPROM version of the ST7263 in CSDIP32 windowed packages. A specific mode is available to allow programming of the EPROM user memory array. This is set by a specific voltage source applied to the VPP/TEST pin. Figure 1. General Block Diagram 8-BIT CORE ALU OSCIN OSCOUT RESET PORT B 16-BIT TIMER PORT A PORT C PB[7:0] (8 bits) PC[2:0] (3 bits) OSCILLATOR Internal CLOCK CONTROL RAM (256/512 Bytes) PA[7:0] (8 bits) VSS VDD POWER SUPPLY SCI* PROGRAM (4K/8K/16K Bytes) I2C* MEMORY ADC (UART) USB SIE OSC/3 LVD WATCHDOG VSSA VDDA VPP/TEST USB DMA USBDP USBDM USBVCC OSC/4 or OSC/2 (for USB) * not on all products (refer to Table 1: Device Summary) |
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