ST72771R5Q1 查看數據表（PDF） - STMicroelectronics
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ST72771R5Q1
STMicroelectronics
ST72771R5Q1 Datasheet PDF : 3 Pages
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ST7277
1 GENERAL DESCRIPTION
1.1 INTRODUCTION
The ST7277 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 de-
vice, operation down to DC is possible. Under soft-
ware control the ST7277 can be placed in WAIT or
HALT mode thus reducing power consumption.
The enhanced instruction set and addressing
modes afford real programming potential.
Figure 1. ST7277 Block Diagram
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 60K ROM, up to 2K RAM, USB/DMA,
I/O, a timer with 2 input captures and 2 output
compares, an 8-channel Analog to Digital Convert-
er, DDC/DMA, I2C multi Master, SCI Serial Com-
munications Interface, Watchdog Reset, an Infra
Red Control preprocessor, and one 12-bit and
eight 10-bit PWM/BRM outputs for analog DC con-
trol of external functions.
USBVCC
USBDP
USBDM
USGGND
RESET
OSCIN
OSCOUT
VDD
VSS
Up to 60K Bytes
ROM/OTP/EPROM
Up to 2K Bytes
RAM
USB SIE
USB DMA
CONTROL
8-BIT CORE
ALU
WATCHDOG
OSC
:3
Mode
Selection
POWER SUPPLY
PORT A
PORT B
ADC
INFRA-RED
PORT C
I2C
DDC
SCI
TIMER
SYNC
PROCESSOR
PORT D
DAC (PWM)
PA0-PA6
PA7/BLANKOUT
PB1-PB7/AIN1-AIN7
PB0/VFBACK/AIN0
VDDA
VSSA
IRIN
PC0/OCMP/HFBACK
PC1/HSYNCI2
PC2/RX/SCLD
PC3/SDAD
PC4/SCLI
PC5/SDAI
PC6/RDI
PC7/TDO
VSYNCI1
HSYNCI1
PD0/CSYNCI
PD1/HSYNCO
PD2/VSYNCO
PD3/ITC
PD4/ITB
PD5/ITA
PD6/CLAMPOUT
PD7/VSYNCI2
DA0, DA1-DA8
VR02120C
2/3
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