ST7277
8-BIT USB MCU FOR MONITORS WITH UP TO 60K ROM, 2K RAM,
ADC, TIMER, INFRA RED, SYNC, PWM/BRM, DDC/DMA,
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C & SCI
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BRIEF DATA
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User ROM: up to 60 Kbytes
Data RAM: up to 2 Kbytes (256 bytes stack)
8 MHz Maximum Internal Clock Frequency in
fast mode, 4 MHz in normal mode
Run, Wait and Halt CPU modes
RAM Retention Mode
Sync Processor for Mode Recognition, power
management and composite video blanking,
clamping
and
free-running
frequency
generation.
鈥?Corrector mode
鈥?Analyzer mode
USB (Universal Serial Bus) for monitor function
鈥?Integrated 3.3V voltage regulator
鈥?Integrated Transceiver
鈥?Suspend and Resume operations
Fast I
2
C Multi Master Interface
DDC Bus Interface fully compliant with DDC1,
2B, 2B+, 2AB, 2Bi standards
32 I/O lines
鈥?8 Open Drain I/Os with high current capacity
(10 mA) on port A
鈥?5 lines programmable as interrupt inputs
16-bit timer with 2 input captures and 2 output
compare functions (with 1 output pin)
8-bit Analog to Digital Converter with 8
channels on port B
8 10-bit PWM/BRM Digital to Analog outputs
One 12-bit PWM/BRM Digital to Analog output
Asynchronous
Serial
Communications
Interface
Infra red controller
1
Master Reset and Power on/off reset
Programmable Watchdog for system reliability
56-pin Shrink Dual In line Plastic package or 64-
pin Plastic Quad Flat Pack
Fully static operation
0 to + 70
o
C Operating Temperature Range
4.0V to 5.5V supply operating range
24 MHz Quartz Oscillator
PQFP64
PSDIP56
See Ordering Information at the end of the Document
63 basic instructions/17 main address modes
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8x8 unsigned multiply instruction
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True bit manipulation
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Versatile
Development Tools (DOS and
Windows) including assembler, linker, C-
compiler, archiver, source level debugger, and
hardware emulator
Note 1:
Power On/Off reset not implemented in
this revision.
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April 1998
This is preliminary information on a new product in development orundergoing evaluation. Detailsare subject to change without notice.
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