The ST62T52C and ST62T62C devices is low cost members of the ST62xx 8-bit HCMOS family of microcontrollers, which is 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.

The ST62E62C is the erasable EPROM version of the ST62T62C device, which may be used to emulate the ST62T52C and ST62T62C devices as well as the ST6252C and ST6262B ROM devices.

OTP and EPROM devices are functionally identical. The ROM based versions offer the same functionality selecting as ROM options the options defined in the programmable option byte of the OTP/EPROM versions.

OTP devices offer all the advantages of user programmability at low cost, which make them the ideal choice in a wide range of applications where frequent code changes, multiple code versions or last minute programmability are required.

These compact low-cost devices feature a Timer comprising an 8-bit counter and a 7-bit programmable prescaler, an 8-bit Auto-Reload Timer, EEPROM data capability (except ST62T52C), an 8-bit A/D Converter with 4 analog inputs and a Digital Watchdog timer, making them well suited for a wide range of automotive, appliance and industrial applications.

Key Features

  • User Programmable Options
  • Data EEPROM: 64 bytes (none on ST62T52C)
  • 5 I/O lines can sink up to 30mA to drive LEDs or TRIACs directly
  • 9 I/O pins, fully programmable as:\t\tInput with pull-up resistor\t\tInput without pull-up resistor\t\tInput with interrupt generation\t\tOpen-drain or push-pull output\t\tAnalog Input\t\t
  • 8-bit Auto-reload Timer with 7-bit programmable prescaler (AR Timer)
  • 8-bit Timer / Counter with 7-bit programmable prescaler
  • Oscillator Safe Guard
  • Digital Watchdog
  • Low Voltage Detector for Safe Reset
  • On-chip Clock oscillator can be driven by Quartz Crystal Ceramic resonator or RC network
  • 8-bit A/D Converter with 4 analog inputs
  • One external Non-Maskable Interrupt
  • User configurable Power-on Reset
  • ST626x-EMU2 Emulation and Development System (connects to an MS-DOS PC via a parallel port)
  • Data Storage in Program Memory: User selectable size
  • Look-up Table capability in Program Memory
  • 3.0 to 6.0V Supply Operating Range
  • -40 to +125°C Operating Temperature Range
  • 8 MHz Maximum Clock Frequency
  • 5 Interrupt Vectors
  • Data RAM: 128 bytes
  • Run, Wait and Stop Modes


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