ST72F321J

www.DataSheet4U.com ST72321J 8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, 5 TIMERS, SPI, SCI, I2C INTERFACE s s s s s ww.DataSheet4U.com Memories – 48 to 60K dual voltage High Density Flash (HDFlash) or ROM with read-out protection capability. In-Application Programming and In-Circuit Programming for HDFlash devices – 1.5 to 2K bytes RAM – HDFlash endurance: 100 cycles, data retention: 20 years at 55°C Clock, Reset And Supply Management – Enhanced low voltage supervisor (LVD) for main supply and auxiliary voltage detector (AVD) with interrupt capability – Clock sources: crystal/ceramic resonator oscillators, internal or external RC oscillator, clock security system and bypass for external clock – PLL for 2x frequency multiplication – Four Power Saving Modes: Halt, Active-Halt, Wait and Slow Interrupt Management – Nested interrupt controller – 10 interrupt vectors plus TRAP and RESET – 9 external interrupt lines (on 4 vectors) Up to 32 I/O Ports – 32 multifunctional bidirectional I/O lines – 22 alternate function lines – 12 high sink outputs 5 Timers – Main Clock Controller with: Real time base, Beep and Clock-out capabilities – Configurable watchdog timer – 16-bit Timer A with: 1 input capture, 1 output compare, external clock input, PWM and pulse generator modes – 16-bit Timer B with: 2 input captures, 2 output compares, PWM and pulse generator modes TQFP44 10 x 10 s s 3 Communication Interfaces – SPI synchronous serial interface – SCI asynchronous serial ...