ST7262 datasheet(4/132 Pages) STMICROELECTRONICS

4 / 132 page

ST7262

4/132

1 INTRODUCTION

The ST7262, ST72P62 and ST72F62 devices are

members of the ST7 microcontroller family de-

signed for USB applications.

All devices are based on a common industry-

standard 8-bit core, featuring an enhanced instruc-

tion set.

The ST7262 devices are ROM versions.

The ST72P62 devices are Factory Advanced

Service Technique ROM (FASTROM) versions:

they are factory-programmed and are not repro-

grammable.

The

ST72F62

versions

feature

dual-voltage

FLASH memory with FLASH Programming capa-

bility.

Under software control, all devices 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.

Figure 1. General Block Diagram

8-BIT CORE

ALU

OSCIN

OSCOUT

RESET

PORT B

USB SIE

PORT A

SCI

PORT C

SPI

PB7:0

(8 bits)

PC7:0

(8 bits)

OSCILLATOR

Internal

CLOCK

CONTROL

RAM

(384,

PA7:0

(8 bits)

VSS

VDD

POWER

SUPPLY

PROGRAM

(8 or 16K Bytes)

LVD

10-BIT ADC

MEMORY

WATCHDOG

USBDP

USBDM

USBVCC

PWM ART

USB DMA

VSSA

VDDA

PORT D

PD6:0

(7 bits)

TIME BASE UNIT

VPP

or 768 Bytes)

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