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ST72753 Datasheet(HTML) 2 Page - STMicroelectronics

Part No. ST72753
Description  8-BIT MCU FOR MONITORS WITH UP TO 32K ROM, 1K RAM, ADC, TIMER, SYNC, PWM/BRM, DDC/DMA & I2C
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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ST72753 Datasheet(HTML) 2 Page - STMicroelectronics

   
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ST72753
1 GENERAL DESCRIPTION
1.1 INTRODUCTION
The ST72753 is a HCMOS microcontroller unit
(MCU) from the ST7 family with dedicated periph-
erals for Monitor applications.
It is based around an industry standard 8-bit core
and offers an enhanced instruction set. The proc-
essor runs with an external clock at 24 MHz with
a 5V supply. Due to the fully static design of this
device, operation down to DC is possible. Under
software control the ST72753 can be placed in
WAIT or HALT mode thus reducing power con-
sumption. The enhanced instruction set and ad-
dressing modes afford real programming potential.
In addition to standard 8-bit data management the
ST7 features true bit manipulation, 8x8 unsigned
multiplication and indirect addressing modes.
The device includes an on-chip oscillator, CPU,
Sync Processor for video timing & Vfback analy-
sis, up to 32K ROM, up to 1K RAM, I/O, a timer
with 2 input captures and 2 output compares, a 4-
channel Analog to Digital Converter, DDC/DMA,
I
2C multi Master, Watchdog Reset, and six 10-bit
PWM/BRM outputs for analog DC control of exter-
nal functions.
Figure 1. ST72753 Block Diagram
SYNC
PROCESSOR
POWER
SU PPLY
OSC /3 or 6
VDD
POR T A
PORT C
DDC
TIM ER
WATCHDOG
PORT D
OCMP
PWM/BRM
PORT B
ADC
A IN 0..2, AIN7
32K Bytes
RAM
1K Bytes
CONTROL
8-BIT CORE
ALU
INTERNAL
CLOC K
VSS
OSCOUT
OSCIN
DA1,DA6
DDC DM A
PORT C
SCLD
SDAD
I²C
PA4-PA6 (HV)
PA7/BLANKOUT
PC3/SDAD
PC2/RX/SCLD
PC0/OCMP/HFBACK
RESET
HSYNCI
VSYNCI
PB1..2/AIN1..2
VFBACK/AIN0
PC4/SCLI
PC5/SDAI
PC6 (HC)
POWER ON/OFF
ROM/
Up to
Up to
PB0/
PD0/CSYNCI/ITA
PD1/HSYNCO
PD2/VSYNCO
PD3/ITC
PD6/CLAMPOUT
PB7/AIN7
EPROM/OTP


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