GENERAL DESCRIPTION
INTRODUCTION
The ST62T28C and ST62E28C devices are low cost members of the ST62xx 8-bit HCMOS family of microcontrollers, which are targeted at low to medium complexity applications. All ST62xx devices are based on a building block approach: a common core is surrounded by a number of on chip peripherals.
â 3.0 to 6.0V Supply Operating Range
â 8 MHz Maximum Clock Frequency
â -40 to +125°C Operating Temperature Range
â Run, Wait and Stop Modes
â 5 Interrupt Vectors
â Look-up Table capability in Program Memory
â Data Storage in Program Memory: User selectable size
â Data RAM: 192 bytes
â User Programmable Options
â 20 I/O pins, fully programmable as:
– Input with pull-up resistor
– Input without pull-up resistor
– Input with interrupt generation
– Open-drain or push-pull output
– Analog Input
â 8 I/O lines can sink up to 20mA to drive LEDs or TRIACs directly
â 8-bit Timer/Counter with 7-bit programmable prescaler
â 8-bit Auto-reload Timer with 7-bit programmable prescaler (AR Timer)
â Digital Watchdog
â 8-bit A/D Converter with 12 analog inputs
â 8-bit Asynchronous Peripheral Interface(UART)
â 8-bit Synchronous Peripheral Interface (SPI)
â On-chip Clock oscill ator can be driven by Quartz Crystal, Ceramic resonator or RC network
â Oscillator Safe Guard
â Low Voltage Detector for safe Reset
â One external Non-Maskable Interrupt
â ST623x-EMU2 Emulation and Development System (connects to an MS-DOS PC via a parallel port).
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