R
ST7275-1
PRODUCT PREVIEW
8-BIT, 56-PIN MCU FOR MONITORS, WITH UP TO 60K ROM, 2K
RAM, ADC, TIMER, IR, SYNC, PWM/BRM, DDC/DMA, I
2
C & SCI
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User ROM/OTP/EPROM: 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
Sync Processor for Mode Recognition, power
management and composite video blanking,
clamping
and
free-running
frequency
generation.
鈥?Corrector mode
鈥?Analyzer mode
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
Master Reset and Power on/off reset
1
Programmable Watchdog for system reliability
56-pin Shrink Dual In line Plastic package
Fully static operation
0 to + 70
o
C operating temperature range
4.0V to 5.5V supply operating range
24 MHz Quartz Oscillator
63 basic instructions/17 main address modes
8x8 unsigned multiply instruction
True bit manipulation
Versatile Development Tools (DOS and
Windows) including assembler, linker, C-
compiler, archiver, source level debugger,
EPROM programmer and hardware emulator
PSDIP56
See Ordering Information at the end of the Document
Device Summary
Features
ROM
(bytes)
RAM
(bytes)
ADC
Timer
I
2
C Bus
DDC/DMA
Sync
PWM
I/O
SCI
IR
EPROM
Device
OTP
Device
ST72751N9
60K
2K
ST72751N7
48K
1.5
8 channels
1
one multimaster
yes
yes
9
32
yes
yes
ST72E751N9D1
ST72T751N9B1
ST72751N6
32K
1
Note 1:
Power On/Off reset not implemented in
this revision.
April 1998
This is preliminary information on a new product in development or undergoing evaluation. Details are subject to change without notice.
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