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参数资料
| 型号： | ST72121J2T3/XXX |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP44 |
| 封装： | PLASTIC, TQFP-44 |
| 文件页数： | 34/87页 |
| 文件大小： | 1365K |
| 代理商： | ST72121J2T3/XXX |
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ST72121
1 GENERAL DESCRIPTION
1.1 INTRODUCTION
The ST72121 HCMOS Microcontroller Unit (MCU)
is a member of the ST7 family. The device is
based on an industry-standard 8-bit core and fea-
tures an enhanced instruction set. The device is
normally operated at a 16 MHz oscillator frequen-
cy. Under software control, the ST72121 may be
placed in either Wait, Slow or Halt modes, thus re-
ducing power consumption. The enhanced in-
struction set and addressing modes afford real
programming potential. In addition to standard
8-bit data management, the ST72121 features
true bit manipulation, 8x8 unsigned multiplication
and indirect addressing modes on the whole mem-
ory. The device includes a low consumption and
fast start on-chip oscillator, CPU, program memo-
ry (ROM/OTP/EPROM versions), RAM, 32 I/O
lines, a Low Voltage Detector (LVD) and the fol-
lowing on-chip peripherals: industry standard syn-
chronous SPI and asynchronous SCI serial inter-
faces, digital Watchdog, two independent 16-bit
Timers, one featuring an External Clock Input, and
both featuring Pulse Generator capabilities, 2 In-
put Captures and 2 Output Compares (only 1 Input
Capture and 1 Output Compare on Timer A).
Figure 1. ST72121 Block Diagram
8-BIT CORE
ALU
A
DDRESS
AND
A
B
US
OSCIN
OSCOUT
RESET
PORT B
TIMER B
PORT C
SPI
PORT E
SCI
PORT D
WATCHDOG
PB0 -> PB4
PC0 -> PC7
PE0 -> PE1
PD0 -> PD5
OSC
Internal
CLOCK
CONTROL
RAM
(384 - 512 Bytes)
PORT F
PF0 -> PF2,4,6,7
TIMER A
PORT A
PA3 -> PA7
(6 bits)
AND LVD
(6 bits)
(8 bits)
VSS
VDD
POWER
SUPPLY
PROGRAM
MEMORY
(2 bits)
(5 bits)
4
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| ST72311J2B6/XXX | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP42 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ST72121J4 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-BIT MICROCONTROLLER (MCU) WITH 8 TO 16 K ROM/OTP/EPROM. 384 TO 512 BYTES RAM. WDG. SCI. SPI & 2 TIMERS - SDIP42. TQFP44 |
| ST72124J | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, SCI INTERFACES |
| ST72124J2 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, SCI INTERFACES |
| ST72124J2B | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, SCI INTERFACES |
| ST72124J2B1 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, SCI INTERFACES |
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