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ST7294 Folha de dados(PDF) 4 Page - STMicroelectronics

Nome de Peças ST7294
Descrição Electrónicos  8-BIT MCU WITH 6K ROM, EEPROM AND 16-BIT TIMER WITH INPUT CAPTURE AND DUAL OUTPUT COMPARE
PDF  69 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7294 Folha de dados(HTML) 4 Page - STMicroelectronics

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ST7294
1 GENERAL DESCRIPTION
1.1 INTRODUCTION
The ST7294 HCMOS 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. The
CPU may be driven by an external 4MHz clock
when the device is operated with a 5V supply, or
by a 2MHz clock when operated with a 3V supply.
Thanks to the fully static design, operation is pos-
sible down to DC. Under software control, the
ST7294 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 addition to
standard 8-bit data management, the ST7294 fea-
tures true bit manipulation, 8x8 unsigned multipli-
cation and indirect addressing modes. The device
includes a CPU, ROM, RAM, EEPROM, I/O, an
on-chip oscillator and a timer with input capture
and dual output compare systems.
Figure 2. ST7294 Block Diagram
Note 1. EPROM version only
CONTROL
PORT A
PORT B
PORT C
TIMER SYSTEM
RAM
224 Bytes
ROM or EPROM(1)
6144 kbytes
PA0 - PA7
(8-Bit)
PB0 - PB7
(8-Bit)
PC0 - PC5
(6-Bit)
V
DD
V
SS
OSCin
OSCout
INT/V
PP
(1)
RESET
OSCILLATOR
POWER
SUPPLY
8 -BIT CORE
ALU
VR01735E
Internal
CLOCK
WATCHDOG
EEPROM
256 Bytes



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