HT45R38 Datasheet | Holtek Semiconductor

Features - Operating voltage: - 12 capacitor/resistor sensor input - 4096´15 program memory - 192´8 data memory RAM - Power Down and Wake-up function reduce power .. f SYS=4MHz: 2.2V~5.5V f SYS=8MHz: 3.3V~5.5V - 29 bidirectional I/O lines - Two external interrupt inputs shared with I/O lines - Single 8-bit programmable timer/event counter with consumption - Up to 0.5ms instruction cycle with 8MHz system clock overflow interrupt and 7-stage prescaler - One 8-bit programmable timer/event counter with at VDD=5V - All instructions executed in one or two machine cy- overflow interrupt - 5 channels 12-bit resolution A/D converter - 2-channels 8-bit PWM output shared with 2 I/O lines - One OPA - External RC oscillation converter - On-chip crystal and RC oscillator - Watchdog Timer cles - 15-bit table read instruction - Six-level subroutine nesting - Bit manipulation instruction - 63 powerful instructions - Low voltage reset function - 52-pin QFP package General Description The HT45R38 is an 8-bit high performance, RISC architecture microcontroller device specifically designed for cost-effective multiple I/O control product applications. The advantages of low power consumption, I/O flexibility, timer functions, oscillator options, Power Down and wake-up functions, Watchdog Timer, enhance the versatility of these devices to suit a wide range of application possibilities such as industrial control, consumer products, subsystem controllers, etc. Rev. 1.00 December 13, 2006 Block Diagram P A 3 /IN T 0 P A 4 /IN T 1 In te rru p t C ir c u it IN T C S T A C K 0 P ro g ra m R O M P ro g ra m C o u n te r S T A C K 1 T M R 0 C T M R 0 M U X P r e s c a le r P A 5 /T M R 0 S y s te m C lo c k T M R 1 C .. In s tr u c tio n R e g is te...