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參數(shù)資料
| 型號： | ST72T91L |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 8-BIT MCU WITH 8/12/16/24/32K ROM, TIMER, SUPPLY SUPERVISOR AND CARRIER FREQUENCY GENERATOR |
| 中文描述： | 8位8/12/16/24/32K光盤，定時器，電源監(jiān)控器和載波頻率發(fā)生器單片機(jī) |
| 文件頁數(shù)： | 4/5頁 |
| 文件大?。?/td> | 46K |
| 代理商： | ST72T91L |
4/5
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.
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
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.
Figure 2. ST72E91 Block Diagram
OSCILLATOR
A
PORT A
PORT B
CARRIER FREQ.
GENERATOR
8 BIT CORE
PA0..PA7 (8-bit)
PB0..PB7 (8-bit)
PC0,PC1,PC5,PC6,PC7
PORT C
V
DD
LOW VOLTAGE
DETECTOR
TIMER
SYSTEM
V
PP
P
P
S
X
Y
A
C
CONTROL
Internal
CLOCK
EPROM/OTP
32K
RAM
256/384
OSCout
OSCin
WKP
RESET
D
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ST7291L | 8-BIT MCU WITH 8/12/16/24/32K ROM, TIMER, SUPPLY SUPERVISOR AND CARRIER FREQUENCY GENERATOR |
| ST7291L2 | 8-BIT MCU WITH 8/12/16/24/32K ROM, TIMER, SUPPLY SUPERVISOR AND CARRIER FREQUENCY GENERATOR |
| ST7291L3 | Quadruple 2-Input Positive-OR Gates 16-PDIP -40 to 85 |
| ST7291L4 | 8-BIT MCU WITH 8/12/16/24/32K ROM, TIMER, SUPPLY SUPERVISOR AND CARRIER FREQUENCY GENERATOR |
| ST7291L5 | Quadruple 2-Input Positive-OR Gates 16-TSSOP -40 to 85 |
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