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ST72C171 Datasheet(PDF) 1 Page - STMicroelectronics

Part No. ST72C171
Description  8-BIT MCU with 8K FLASH, ADC, WDG, SPI, SCI, TIMERS SPGAs Software Programmable Gain Amplifiers, OP-AMP
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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ST72C171 Datasheet(HTML) 1 Page - STMicroelectronics

 
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Rev. 1.4
October 2000
1/152
This is preliminary information on a new product in development or undergoing evaluation. Details are subject to change without notice.
ST72C171
8-BIT MCU with 8K FLASH, ADC, WDG, SPI, SCI, TIMERS
SPGAs (Software Programmable Gain Amplifiers), OP-AMP
PRODUCT PREVIEW
s
Memories
– 8K of single voltage Flash Program memory
with read-out protection
– In-Situ Programming (Remote ISP)
s
Clock, Reset and Supply Management
– Enhanced Reset System
– Low voltage supervisor (LVD) with 3 program-
mable levels
– Low consumption resonator or RC oscillators
(internal or external) and by-pass for external
clock source, with safe control capabilities
– 3 Power Saving modes
s
22 I/O Ports
– 22 multifunctional bidirectional I/O lines:
– 16 interrupt inputs on 2 independent lines
– 8 lines configurable as analog inputs
– 20 alternate functions
–EMI filtering
s
2 Timers and Watchdog
– One 16-bit Timer with: 2 Input Captures, 2
Output Compares, external Clock input, PWM
and Pulse Generator modes
– One 8-bit Autoreload Timer (ART) with: 2
PWM output channels (internally connectable
to the SPGA inputs), 1 Input Capture, external
clock input
– Configurable watchdog (WDG)
s
2 Communications Interfaces
– Synchronous Serial Peripheral Interface (SPI)
– Serial Communications Interface (SCI)
s
3 Analog peripherals
– 2 Software Programmable Gain Operational
Amplifiers (SPGAs) with rail-to-rail input and
output, VDD independent (band gap) and pro-
grammable reference voltage (1/8 VDD reso-
lution), Offset compensation, DAC & on/off
switching capability
– 1 rail-to-rail input and output Op-Amp
– 8-bit A/D Converter with up to 11 channels (in-
cluding 3 internal channels connected to the
Op-Amp & SPGA outputs)
s
Instruction Set
– 8-bit data manipulation
– 63 basic Instructions
– 17 main addressing modes
– 8 x 8 unsigned multiply instruction
– True bit manipulation
s
Development Tools
– Full hardware/software development package
Device Summary
SO34
PSDIP32
Features
ST72C171K2M
ST72C171K2B
Flash - bytes
8K Single Voltage
RAM (stack) - bytes
256 (128)
Peripherals
2 SPGAs, 1 Op-Amp,
Watchdog, 3 Timers, SPI, SCI, ADC (11 chan.)
2 SPGAs,
Watchdog, 3 Timers, SPI, SCI, ADC (11 chan.)
Operating Supply
3.2 V to 5.5 V
CPU Frequency
Up to 8 MHz (with up to 16 MHz oscillator)
Temperature Range
- 40°C to + 85°C
Package
SO34
PSDIP32
1


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