ST7263B datasheet(4/132 Pages) 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)

ST7263B 数据表(PDF) 4 Page - STMicroelectronics

ST7263B 数据表(HTML) 4 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

数据表下载