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ST72104G Datasheet(PDF) 6 Page - STMicroelectronics

Part No. ST72104G
Description  8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, IC INTERFACES
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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 6 page
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ST72104G, ST72215G, ST72216G, ST72254G
6/140
1 INTRODUCTION
The
ST72104G,
ST72215G, ST72216G
and
ST72254G devices are members of the ST7 mi-
crocontroller family. They can be grouped as fol-
lows:
– ST72254G devices are designed for mid-range
applications with ADC and I²C interface capabili-
ties.
– ST72215/6G devices target the same range of
applications but without I²C interface.
– ST72104G devices are for applications that do
not need ADC and I²C peripherals.
All devices are based on a common industry-
standard 8-bit core, featuring an enhanced instruc-
tion set.
The ST72C104G, ST72C215G, ST72C216G and
ST72C254G
versions
feature
single-voltage
FLASH memory with byte-by-byte In-Situ Pro-
gramming (ISP) capability.
Under software control, all devices can be placed
in WAIT, SLOW, or HALT mode, reducing power
consumption when the application is in idle or
stand-by state.
The enhanced instruction set and addressing
modes of the ST7 offer both power and flexibility to
software developers, enabling the design of highly
efficient and compact application code. In addition
to standard 8-bit data management, all ST7 micro-
controllers feature true bit manipulation, 8x8 un-
signed multiplication
and indirect addressing
modes.
For easy reference, all parametric data are located
in Section 14 on page 96.
Figure 1. General Block Diagram
8-BIT CORE
ALU
OSC1
OSC2
RESET
PORT B
16-BIT TIMER A
PORT A
SPI
PORT C
8-BIT ADC
WATCHDOG
PB7:0
(8 bits)
PC5:0
(6 bits)
MULTI OSC
Internal
CLOCK
CONTROL
RAM
(256 Bytes)
PA7:0
(8 bits)
VSS
VDD
POWER
SUPPLY
16-BIT TIMER B
PROGRAM
(4 or 8K Bytes)
LVD
+
CLOCK FILTER
I2C
MEMORY
4




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