ST72C171 datasheet(4/152 Pages) STMICROELECTRONICS

4 / 152 page

ST72C171

4/152

1 GENERAL DESCRIPTION

1.1 INTRODUCTION

The ST72C171 is a member of the ST7 family of

Microcontrollers. All devices are based on a com-

mon industry-standard 8-bit core, featuring an en-

hanced instruction set.

The ST72C171 features single-voltage FLASH

memory with byte-by-byte In-Situ Programming

(ISP) capability.

Under software control, the device can be placed

in WAIT, SLOW, or HALT mode, reducing power

consumption when the application is in idle or

standby state.

The enhanced instruction set and addressing

modes of the ST7 offer both power and flexibility to

software developers, enabling the design of highly

efficient and compact application code. In addition

to standard 8-bit data management, all ST7 micro-

controllers feature true bit manipulation, 8x8 un-

signed multiplication

and indirect addressing

modes The device includes a low consumption

and fast start on-chip oscillator, CPU, Flash pro-

gram memory, RAM, 22 I/O lines and the following

on-chip peripherals: Analog-to-Digital converter

(ADC) with 8 multiplexed analog inputs, Op-Amp

module, synchronous SPI serial interface, asyn-

cronous serial interface (SCI), Watchdog timer, a

16-bit Timer featuring external Clock Input, Pulse

Generator capabilities, 2 Input Captures and 2

Output Compares, an 8-bit Timer featuring exter-

nal Clock Input, Pulse Generator Capabilities (2

channels), Autoreload and Input Capture.

The Op-Amp module adds on-chip analog fea-

tures to the MCU, that usually require using exter-

nal components.

Figure 1. ST72C171 Block Diagram

OSCIN

OSCOUT

RESET

16-BIT TIMER

8-BIT ADC

PORT B

WATCHDOG

Internal

CLOCK

CONTROL

256b-RAM

PA[7:0]

VSS

VDD

POWER

SUPPLY

8K FLASH

PORT A

PWM/ART TIMER

SPI

PB[7:0]

LVD

SCI

MULTIOSC

CLOCK FILTER

OP-AMP

VSSA

VDDA

8-BIT CORE

ALU

PORT C

PC[5:0]

OA1OUT

OA2OUT

MEMORY

OA3OUT*

*only on 34-pin devices

OA3PIN*

ST72C171 Fiches technique(PDF) 4 Page - STMicroelectronics

ST72C171 Fiches technique(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

Fiches technique Télécharger

Lien URL