ST6255C Datasheet, PDF (1/84 Pages) STMicroelectronics – 8-bit MCUs with ADC, safe reset, auto-reload timer, EEPROM and SPI

ST6255C ST6265C
ST6265B
8-bit MCUs with ADC,
safe reset, auto-reload timer, EEPROM and SPI
Features
■ 3.0 to 6.0V supply operating range
■ 8 MHz maximum clock frequency
■ -40 to +125°C operating temperature range
■ Run, Wait and Stop modes
■ 5 interrupt vectors
■ Look-up table capability in program memory
■ Data storage in program memory:
user selectable size
■ Data RAM: 128 bytes
■ Data EEPROM: 128 bytes (not in ST6255C)
■ User programmable options
■ 21 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
■ 8 I/O lines can sink up to 30 mA to drive LEDs or
TRIACs directly
– 8-bit Timer/Counter with 7-bit programmable
prescaler
■ 8-bit Auto-reload timer with 7-bit programmable
prescaler (AR Timer)
■ Digital watchdog
■ Oscillator safe guard (not in ST6265B ROM
devices)
■ Low voltage detector for safe reset (not in
ST6265B ROM devices)
■ 8-bit A/D converter with 13 analog inputs
■ 8-bit synchronous peripheral interface (SPI)
■ On-chip clock oscillator can be driven by quartz
crystal, ceramic resonator or RC network
■ User configurable power-on reset
■ One external non-maskable interrupt
■ ST626x-EMU2 Emulation and Development
System (connects to an MS-DOS PC via a
parallel port)
PDIP28
PS028
SS0P28
CDIP28W
(See end of Datasheet for Ordering Information)
Table 1. Device summary
Partnumber
ST6255C
ST6265C
ST6265B
OTP/EPROM/ROM
program memory
(Bytes)
3884
3884
3884
EEPROM
(Bytes)
-
128
128
March 2009
Rev 3
1/84