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ST7291L5A Datasheet(PDF) 2 Page - STMicroelectronics

No. de pieza ST7291L5A
Descripción Electrónicos  8-BIT MCU WITH 8/12/16/24/32K ROM, TIMER, SUPPLY SUPERVISOR AND CARRIER FREQUENCY GENERATOR
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
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ST7291L5A Datasheet(HTML) 2 Page - STMicroelectronics

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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
OSCILLATOR
PORT A
PORT B
CARRIER FREQ.
8 BIT CORE
PA0..PA7 (8-bit)
PB0..PB7 (8-bit)
PC0, PC1, PC6, PC7
PORT C
VDD
LOW VOLTAGE
DETECTOR
TIMER
SYSTEM
VPP
PC5
CONTRO L
Internal
CLOCK
ROM
8K/12K/16K/24K/32K
RAM
256/384
GENERATOR
OSCout
OSCin
WKP
RESET


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