ST72E311N4D0 datasheet(4/100 Pages) STMICROELECTRONICS

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ST72E311 ST72T311

1 GENERAL DESCRIPTION

1.1 INTRODUCTION

The ST72T311 HCMOS Microcontroller Unit

(MCU) is a member of the ST7 family. The device

is based on an industry-standard 8-bit core and

features an enhanced instruction set. The device

is normally operated at a 16 MHz oscillator fre-

quency. Under software control, the ST72T311

may be placed in either Wait, Slow 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 ST72T311 features

true bit manipulation, 8x8 unsigned multiplication

and indirect addressing modes on the whole mem-

ory. The device includes a low consumption and

fast start on-chip oscillator, CPU, program memo-

(OTP/EPROM

versions),

RAM,

(ST72T311N) or 32 (ST72T311J) I/O lines, a Low

Voltage Detector (LVD) and the following on-chip

peripherals: Analog-to-Digital converter (ADC)

with 8 (ST72T311N) or 6 (ST72T311J) multiplexed

analog inputs, industry standard synchronous SPI

and asynchronous SCI serial interfaces, digital

Watchdog, two independent 16-bit Timers, one

featuring an External Clock Input, and both featur-

ing Pulse Generator capabilities, 2 Input Captures

and 2 Output Compares (only 1 Input Capture and

1 Output Compare on Timer A).

Figure 1. ST72T311 Block Diagram

8-BIT CORE

ALU

OSCIN

OSCOUT

RESET

PORT B

TIMER B

PORT C

SPI

PORT E

SCI

PORT D

8-BIT ADC

WATCH DOG

PB0 -> PB7

PC0 -> PC7

PE0 -> PE7

PD0 -> PD7

OSC

Internal

CLOCK

CONTROL

RAM

(384 - 512 Bytes)

PORT F

PF0 -> PF2,4,6,7

TIMER A

PORT A

PA0 -> PA7

VSSA

VDDA

(6 bits for ST72T311N)

(6 bits)

AND LVD

(2 bits for ST72T311J)

(8 bits for ST72T311N)

(6 bits for ST72T311J)

(8 bits for ST72T311N)

(5 bits for ST72T311J)

(8 bits)

(8 bits for ST72T311N)

(5 bits for ST72T311J)

VSS

VDD

POWER

SUPPLY

PROGRAM

(8 - 16K Bytes)

MEMORY

ST72E311N4D0 Datasheet(PDF) 4 Page - STMicroelectronics

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