ST7FLITE20(2003) Просмотр технического описания (PDF) - STMicroelectronics

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ST7FLITE20
(Rev.:2003)

8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, TIMERS, SPI

STMicroelectronics 

ST7LITE2

1 INTRODUCTION

The ST7LITE2 is a member of the ST7 microcon-

troller family. All ST7 devices are based on a com-

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

hanced instruction set.

The ST7LITE2 features FLASH memory with

byte-by-byte In-Circuit Programming (ICP) and In-

Application Programming (IAP) capability.

Under software control, the ST7LITE2 device can

be placed in WAIT, SLOW, or HALT mode, reduc-

ing 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

Figure 1. General Block Diagram

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.

For easy reference, all parametric data are located

in section 13 on page 91.

The devices feature an on-chip Debug Module

(DM) to support in-circuit debugging (ICD). For a

description of the DM registers, refer to the ST7

ICC Protocol Reference Manual.

CLKIN

OSC1

OSC2

VDD

VSS

RESET

Int.

1% RC

1MHz

PLL

8MHz -> 32MHz

PLL x 8

or PLL X4

Ext.

OSC

1MHz

to

16MHz

/2

LVD

POWER

SUPPLY

Internal

CLOCK

CONTROL

8-BIT CORE

ALU

PROGRAM

MEMORY

(8K Bytes)

RAM

(384 Bytes)

12-Bit

Auto-Reload

TIMER 2

8-Bit

LITE TIMER 2

PORT A

PORT B

ADC

+ OpAmp

SPI

Debug Module

DATA EEPROM

(256 Bytes)

WATCHDOG

PA7:0

(8 bits)

PB6:0

(7 bits)

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