ST72753 R 8-BIT MCU FOR MONITORS WITH UP TO 32K ROM, 1K RAM, ADC, TIMER, SYNC, PWM/BRM, DDC/DMA & I2C BRIEF DATA ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ User ROM/OTP: up to 32 Kbytes Data RAM: up to 1 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. – Corrector mode – Analyzer mode Fast I2C Multi Master Interface DDC Bus Interface fully compliant with DDC1, 2B, 2B+, 2AB, 2Bi standards 18 I/O lines – 1 high current I/O (10 mA) – Up to 4 high voltage outputs (9V) 16-bit timer with 2 input captures and 2 output compare functions (with 1 output pin) 8-bit Analog to Digital Converter with 4 channels on port B 8 10-bit PWM/BRM Digital to Analog outputs One 12-bit PWM/BRM Digital to Analog output Master Reset and Power on/off reset1 Programmable Watchdog for system reliability 34-pin Shrink Dual In line Plastic package Fully static operation 0 to + 70 oC 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, Ccompiler, archiver, source level debugger, programmer, and hardware emulator PSO34 See Ordering Information at the end of the Document Device Summary Features ROM (bytes) RAM (bytes) ADC Timer I2C Bus DDC/DMA Sync PWM I/O OTP Device ST72753L6 ST72753L5 ST72753L4 32K 24K 16K 1K 768 512 4 channels 1 one multimaster yes yes 6 18 ST72T752L6M1 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. 1/3 1 ST72753 1 GENERAL DESCRIPTION 1.1 INTRODUCTION The ST72753 is a HCMOS microcontroller unit (MCU) from the ST7 family with dedicated peripherals for Monitor applications. It is based around an industry standard 8-bit core and offers an enhanced instruction set. The processor 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 consumption. The enhanced instruction set and addressing 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 analysis, up to 32K ROM, up to 1K RAM, I/O, a timer with 2 input captures and 2 output compares, a 4channel Analog to Digital Converter, DDC/DMA, I2C multi Master, Watchdog Reset, and six 10-bit PWM/BRM outputs for analog DC control of external functions. Figure 1. ST72753 Block Diagram PORT A PA4-PA6 (HV) PA7/BLANKOUT Up to 32K Bytes ROM/ EPROM/OTP ADC AIN 0..2, AIN7 PB7/AIN7 PB1..2/ AIN1..2 PB0/ VFBACK/AIN0 PORT B Up to 1K Bytes DDC DMA I²C SDAI SCLD DDC SDAD SCLI ADDRESS / DATA BUSES RAM PORT C OCMP TIMER WATCHDOG INTERNAL CLOCK OSC /3 or 6 PWM/BRM 2/3 VFBACK VSYNC HFBACK VSYNCO CLAMPOUT PORT D HSYNCO POWER ON/OFF V DD V SS OSCIN OSCOUT VSYNCI HSYNCI SYNC PROCESSOR CSYNCI PCL PCH SP X Y A CC 8-BIT CORE ALU POWER SUPPLY RESET H/CSYNC CONTROL PC6 (HC) PC5/SDAI PC4/SCLI PC3/SDAD PC2/RX/SCLD PC0/OCMP/HFBACK PD6/CLAMPOUT PD3/ITC PD2/VSYNCO PD1/HSYNCO PD0/CSYNCI/ITA DA1,DA6 ST72753 Notes: Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without the express written approval of SGS-THOMSON Microelectronics. 1998 SGS-THOMSON Microelectronics - All Rights Reserved. Purchase of I2C Components by SGS-THOMSON Microelectronics conveys a license under the Philips I2C Patent. Rights to use these components in an I2C system is granted provided that the system conforms to the I2C Standard Specification as defined by Philips. SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands - Singapore Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A. 3/3