ST7291L [STMICROELECTRONICS]

8-BIT MCU WITH 8/12/16/24/32K ROM, TIMER, SUPPLY SUPERVISOR AND CARRIER FREQUENCY GENERATOR; 8位MCU 8/12 /16/ 24 / 32K ROM ，定时器，电源监控和载波频率发生器


型号：	ST7291L
厂家：	ST
描述：	8-BIT MCU WITH 8/12/16/24/32K ROM, TIMER, SUPPLY SUPERVISOR AND CARRIER FREQUENCY GENERATOR 8位MCU 8/12 /16/ 24 / 32K ROM ，定时器，电源监控和载波频率发生器监控
文件：	总5页 (文件大小：49K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

ST7291L

8-BIT MCU WITH 8/12/16/24/32K ROM, TIMER, SUPPLY

SUPERVISOR AND CARRIER FREQUENCY GENERATOR

BRIEF DATA

■ 2 to 5.5V Supply Operating Range

■ 8MHz Maximum Clock Frequency

■

Fully Static Operation

■

0 to +70°C Operating Temperature Range

■ Run, Wait, Stop and RAM Retention modes

■ User ROM: 12/16/24/32 Kbytes

■

Data RAM: 256/384 bytes

■ 28 pin SO Plastic Packages

■ 21 Bidirectional I/O lines

■ 8 standard Push-pull I/Os with wake-up feature

13 standard Push-pull I/Os

PSO28

■ 16-bit Timer with Output Compare (no output

pin)

■

Low Voltage Detector (LVD)

■

Interrupt Wake-up function

■ IR Carrier Frequency Generator

(See end of Datasheet for Ordering Information)

■ 8-bit Data Manipulation

■

63 Basic Instructions

Note 1. This device is in development, consult your

SGS-THOMSON representative for the current status.

■ 17 main Addressing Modes

■ 8x8 Unsigned Multiply instruction

Figure 1. Pin Description

■ True Bit Manipulation

■

Complete Development Support on PC/DOS/

Windows 3.1x/95/NT with Real-Time Emulator

OSCin

■ Full Software Package (Cross-Assembler,

RESET

WKP

PA7

OSCout

PC1/OP

PC6

Debugger)

(1)

■

Full Hardware Emulator

■ EPROM and OTP support

PA6

PC7

PA5

DEVICE SUMMARY

PA4

TEST

PC5

PB7

PB6

PB5

PB4

PB3

PA3

ROM

(Bytes) (Bytes)

RAM

CARRIER

GENERATOR

DEVICE

PA2

(1)

PA1

PC0

PA0

PB0

PB1

ST7291L6

32K

24K

16K

12K

384

256

Yes

ST7291L5

ST7291L5A

ST7291L4

ST7291L3

ST7291L2

PB2

Notes:

1. PC1 on ST7291L2/L3/L4; software selectable as OP on

ST7291L6/L5/L5A

December 1997

1/5

This is preliminary information ona newproduct in development orundergoing evaluation. Details are subject tochange without notice.

ST7291L

1 GENERAL DESCRIPTION

1.1 INTRODUCTION

The ST7291L CMOS Microcontroller Unit is a

member of the ST7 family of microcontrollers. The

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

and features an enhanced instruction set. Oscilla-

tor frequency may be as high as 8MHz, however,

thanks to the fully static design, operation is possi-

ble down to DC. Under software control, the

ST7291L 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 addi-

tion to standard 8-bit data management, the

ST7291L features bit manipulation, 8x8 unsigned

multiplication and indirect addressing modes.

The device includes a CPU, ROM, RAM, I/O, an

on-chip oscillator, a timer with output compare

system and, depending on the version, a Low Volt-

age Detection (LVD) and Carrier Frequency gen-

eration for remote control applications.

Figure 2. ST7291L Block Diagram

OSCin

PA0..PA7 (8-bit)

PORT A

Internal

CLOCK

OSCILLATOR

OSCout

WKP

PB0..PB7 (8-bit)

PORT B

PORT C

PC0, PC1, PC6, PC7

PC5

CONTROL

RESET

TIMER

SYSTEM

8 BIT CORE

CARRIER FREQ.

GENERATOR

ROM

LOW VOLTAGE

DETECTOR

8K/12K/16K/24K/32K

RAM

256/384

2/5

ST72E91L

ST72T91L

8-BIT MCU WITH 32K EPROM/OTP, TIMER, SUPPLY

SUPERVISOR AND CARRIER FREQUENCY GENERATOR

■ 3 to 5.5V Supply Operating Range

■ 8MHz Maximum Clock Frequency

■

Fully Static operation

■

0 to +70°C Operating Temperature Range

(OTP)

■ Run, Wait, Stop and RAM Retention modes

■

User EPROM/OTP:32 Kbytes

■ Data RAM: /384 Bytes

PSO28

■ 28 pin SO plastic packages for ST72T91 OTP

version

■

28 pin Ceramic SO package for ST72E91

EPROM version

■ 21 Bidirectional I/O lines

■ 8 Interrupt Wake-Up programmable input lines

■

16-bit Timer with Output Compare (no output

pin).

CSO28W

■ Interrupt Wake-up function

■

Low Voltage Detector (LVD)

■

IR Carrier Frequency Generator

■ 8-bit Data Manipulation

■ 63 Basic Instructions

(See end of Datasheet for Ordering Information)

■

17 main Addressing Modes

Figure 1. Pin Description

■ 8x8 Unsigned Multiply instruction

■ True Bit Manipulation

OSCin

■

Complete Development Support on PC/DOS/

RESET

WKP

PA7

OSCout

PC1/OP

PC6

Windows 3.1x/95/NT with Real-Time Emulator

■ Full Software Package (Cross-Assembler,

Debugger)

PA6

PC7

■

Full Hardware Emulator

PA5

PA4

TEST/V

PC5

PB7

PA3

PA2

PB6

PA1

PC0

PA0

PB0

PB1

PB5

PB4

PB3

PB2

December 1997

3/5

This is preliminary information ona newproduct in development orundergoing evaluation. Details are subject tochange without notice.

ST72E91L ST72T91L

1 GENERAL DESCRIPTION

1.1 INTRODUCTION

The ST72E91 and ST72T91 devices form part of

the ST7 family of Microcontrollers, designed and

produced by SGS-THOMSON Microelectronics

using an n-well proprietary HCMOS process. The

ST72E91 is equipped with internal EPROM mem-

ory and is available in windowed ceramic package,

whereas the ST72T91 OTP version is available in

a plastic package. The EPROM parts are fully

compatible with their ROM versions and the

present Datasheet will thus provide only informa-

tion specifically relating to the EPROM devices.

trade-off for prototyping, pre-production and most

low to medium volume applications.

Both devices are based around an industry stand-

ard 8-bit core and offer an enhanced instruction

set. The processors will run at an 8MHz clock rate

with a 5V supply, and at up to 4MHz with a 3V

supply. Since the design is fully static, operation

down to DC is possible and the devices may be

placed in HALT or WAIT modes under program

control in order to reduce power requirements.

The powerful enhanced instruction set and ad-

dressing modes afford real programming potential.

In addition to standard 8-bit data management, the

ST72E91 and the ST72T91 feature true bit manip-

ulation, 8x8 unsigned multiplication and indirect

addressing modes. The devices include a CPU, an

on-chip oscillator, EPROM, RAM, I/O, and a timer

with output compare system.

PLEASE REFER TO THE ST7291 DATASHEET

FOR THE ROM DEVICES FOR FULL DETAILS.

The ST72E91 is a user programmable and erasa-

ble device, best suited for development purposes.

The ST72T91 is a One-Time Programmable de-

vice (OTP) which offers the best cost/flexibility

Figure 2. ST72E91 Block Diagram

OSCin

PA0..PA7 (8-bit)

PORT A

Internal

CLOCK

OSCILLATOR

OSCout

WKP

PB0..PB7 (8-bit)

PORT B

PORT C

PC0,PC1,PC5,PC6,PC7

CONTROL

RESET

TIMER

SYSTEM

8 BIT CORE

CARRIER FREQ.

GENERATOR

LOW VOLTAGE

DETECTOR

EPROM/OTP

32K

RAM

256/384

4/5

ST72E91L ST72T91L

Notes:

Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no

responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third

parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights

of SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without notice.

This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products

are not authorized for use as critical components in life support devices or systems without the express written approval

of SGS-THOMSON Microelectronics.

Purchase of I²C Components by SGS-THOMSON Microelectronics conveys a license under the Philips I²C Patent. Rights to use these

components in an I²C system is granted provided that the system conforms to the I²C Standard Specification as defined by Philips.

SGS-THOMSON Microelectronics GROUP OF COMPANIES

Australia - Brazil - Canada - China - France - Germany - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands - Singapore

Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A.

5/5

ST7291L [STMICROELECTRONICS]

相关型号：

ST7291L2

ST7291L3

ST7291L4

ST7291L5

ST7291L5A

ST7291L6

ST7293C3B1

ST7293C3B6

ST7293C3M1

ST7293C3M6

ST7294C6B1

ST7294C6B6