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ST72E121 数据表(PDF) 1 Page - STMicroelectronics

部件名 ST72E121
功能描述  8-BIT MCU WITH 8 TO 16K OTP/EPROM, 384 TO 512 BYTES RAM, WDG, SCI, SPI AND 2 TIMERS
PDF  92 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

ST72E121 数据表(HTML) 1 Page - STMicroelectronics

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September 1999
1/92
ST72E121
ST72T121
8-BIT MCU WITH 8 TO 16K OTP/EPROM,
384 TO 512 BYTES RAM, WDG, SCI, SPI AND 2 TIMERS
DATASHEET
s
User Program Memory (OTP/EPROM):
8 to 16K bytes
s
Data RAM: 384 to 512 bytes including 256 bytes
of stack
s
Master Reset and Power-On Reset
s
Low Voltage Detector (LVD) Reset option
s
Run and Power Saving modes
s
32 multifunctional bidirectional I/O lines:
– 9 programmable interrupt inputs
– 4 high sink outputs
– 13 alternate functions
– EMI filtering
s
Software or Hardware Watchdog (WDG)
s
Two 16-bit Timers, each featuring:
– 2 Input Captures 1)
– 2 Output Compares 1)
– External Clock input (on Timer A)
– PWM and Pulse Generator modes
s
Synchronous Serial Peripheral Interface (SPI)
s
Asynchronous Serial Communications Interface
(SCI)
s
8-bit Data Manipulation
s
63 basic Instructions and 17 main Addressing
Modes
s
8 x 8 Unsigned Multiply Instruction
s
True Bit Manipulation
s
Complete
Development Support
on DOS/
WINDOWSTM Real-Time Emulator
s
Full Software Package on DOS/WINDOWSTM
(C-Compiler, Cross-Assembler, Debugger)
Note: 1. One only on Timer A.
Device Summary
Note: The ROM versions are supported by the ST72124 family.
TQFP44
PSDIP42
CSDIP42W
(See ordering information at the end of datasheet)
Features
ST72T121J2
ST72T121J4
Program Memory - bytes
8K
16K
RAM (stack) - bytes
384 (256)
512 (256)
Peripherals
Watchdog, Timers, SPI, SCI and optional Low Voltage Detector Reset
Operating Supply
3 to 5.5 V
CPU Frequency
8MHz max (16MHz oscillator) - 4MHz max over 85
°C
Temperature Range
- 40
°C to + 125°C
Package
TQFP44 - SDIP42
OTP/EPROM Devices
ST72T121J4/ST72E121J4
1
Rev. 1.7


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