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ST7263BK2B1 Datasheet(PDF) 4 Page - STMicroelectronics |
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ST7263BK2B1 Datasheet(HTML) 4 Page - STMicroelectronics |
4 / 132 page ST7263B 4/132 1 INTRODUCTION The ST7263B Microcontrollers form a sub-family of the ST7 MCUs dedicated to USB applications. The devices are based on an industry-standard 8- bit core and feature an enhanced instruction set. They operate at a 24 MHz or 12 MHz oscillator fre- quency. 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 8- bit data management, the ST7263B MCUs feature true bit manipulation, 8x8 unsigned multiplication and indirect addressing modes. The devices in- clude 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 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 Table 1 Device Summary) – 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 reset (LVD) ensuring proper power- on 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 repro- grammable. The ST72F63B devices are Flash versions. They support programming in IAP mode (In-application programming) via the on-chip USB interface. 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 (384/512 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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