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ST72212G2B1 Datasheet(PDF) 4 Page - STMicroelectronics

No. de pieza ST72212G2B1
Descripción Electrónicos  8-BIT MCU WITH 4 TO 8K ROM/OTP/EPROM, 256 BYTES RAM, ADC, WDG, SPI AND 1 OR 2 TIMERS
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72212G2B1 Datasheet(HTML) 4 Page - STMicroelectronics

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ST72101/ST72212/ST72213
1 GENERAL DESCRIPTION
1.1 INTRODUCTION
The ST72101, ST72213 and ST72212 HCMOS
Microcontroller Units are members of the ST7
family. These devices are based on an industry-
standard 8-bit core and feature an enhanced
instruction set. They normally operate at a 16MHz
oscillator frequency. Under software control, the
ST72101, ST72213 and ST72212 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 ST72101, ST72213
and ST72212 feature true bit manipulation, 8x8
unsigned multiplication and indirect addressing
modes on the whole memory. The devices include
an on-chip oscillator, CPU, program memory
(ROM/OTP/EPROM versions), RAM, 22 I/O lines
and the following on-chip peripherals: Analog-to-
Digital Converter (ADC) with 6 multiplexed analog
inputs (ST72212 and ST72213 only), industry
standard synchronous SPI serial interface, digital
Watchdog, one or two independent 16-bit Timers,
one featuring an External Clock Input, and both
featuring Pulse Generator capabilities, 2 Input
Captures and 2 Output Compares.
Figure 1. ST72101, ST72213 and ST72212 Block Diagram
8-BIT CORE
ALU
OSCIN
OSCOUT
RESET
PORT B
TIMER A
PORT A
SPI
PORT C
8-BIT ADC
1)
WATCHDOG
PB0 -> PB7
(8 bits)
PC0 -> PC5
(6 bits)
OSC
Internal
CLOCK
CONTR OL
RAM
(256 Bytes)
PA0 -> PA7
(8 bits)
VSS
VDD
POWER
SUPPLY
TIMER B
2)
1) ST72213 and ST72212 only
2) ST72212 only
PROGRAM
(4 - 8K Bytes)
MEMORY
4


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