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ST72E311_01 Datasheet(PDF) 4 Page - STMicroelectronics

Part No. ST72E311_01
Description  8-BIT MCU WITH 8 TO 16K OTP/EPROM, 384 TO 512 BYTES RAM, ADC, WDG, SCI, SPI AND 2 TIMERS
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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ST72E311 ST72T311
1 GENERAL DESCRIPTION
1.1 INTRODUCTION
The
ST72T311
HCMOS
Microcontroller
Unit
(MCU) is a member of the ST7 family. The device
is based on an industry-standard 8-bit core and
features an enhanced instruction set. The device
is normally operated at a 16 MHz oscillator fre-
quency. Under software control, the ST72T311
may be placed in either Wait, Slow 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 ST72T311 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
(OTP/EPROM
versions),
RAM,
44
(ST72T311N) or 32 (ST72T311J) I/O lines, a Low
Voltage Detector (LVD) and the following on-chip
peripherals: Analog-to-Digital converter (ADC)
with 8 (ST72T311N) or 6 (ST72T311J) multiplexed
analog inputs, industry standard synchronous SPI
and asynchronous SCI serial interfaces, digital
Watchdog, two independent 16-bit Timers, one
featuring an External Clock Input, and both featur-
ing Pulse Generator capabilities, 2 Input Captures
and 2 Output Compares (only 1 Input Capture and
1 Output Compare on Timer A).
Figure 1. ST72T311 Block Diagram
8-BIT CORE
ALU
OSCIN
OSCOUT
RESET
PORT B
TIMER B
PORT C
SPI
PORT E
SCI
PORT D
8-BIT ADC
WATCHDOG
PB0 -> PB7
PC0 -> PC7
PE0 -> PE7
PD0 -> PD7
OSC
Internal
CLOCK
CONTROL
RAM
(384 - 512 Bytes)
PORT F
PF0 -> PF2,4,6,7
TIMER A
PORT A
PA0 -> PA7
VSSA
VDDA
(6 bits for ST72T311N)
(6 bits)
AND LVD
(2 bits for ST72T311J)
(8 bits for ST72T311N)
(6 bits for ST72T311J)
(8 bits for ST72T311N)
(5 bits for ST72T311J)
(8 bits)
(8 bits for ST72T311N)
(5 bits for ST72T311J)
VSS
VDD
POWER
SUPPLY
PROGRAM
(8 - 16K Bytes)
MEMORY
4




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