HT46R46 Datasheet, PDF (1/42 Pages) Holtek Semiconductor Inc – Cost-Effective A/D Type 8-Bit MCU

HT46R46/HT46C46/HT46R47/HT46C47
Cost-Effective A/D Type 8-Bit MCU
Features
· Operating voltage:
f_SYS=4MHz: 2.2V~5.5V
f_SYS=8MHz: 3.3V~5.5V
· 13 bidirectional I/O lines (max.)
· 1 interrupt input shared with an I/O line
· 8-bit programmable timer/event counter with overflow
interrupt and 7-stage prescaler
· On-chip crystal and RC oscillator
· Watchdog Timer
· 1024´14 program memory for HT46R46/HT46C46
· 2048´14 program memory for HT46R47/HT46C47
· 64´8 data memory RAM
· Supports PFD for sound generation
· HALT function and wake-up feature reduce power
consumption
· Up to 0.5ms instruction cycle with 8MHz system clock
at V_DD=5V
· 4-level subroutine nesting for HT46R46/HT46C46
· 6-level subroutine nesting for HT46R47/HT46C47
· 4 channels 8-bit resolution A/D converter
for HT46R46/HT46C46
· 4 channels 9-bit resolution A/D converter
for HT46R47/HT46C47
· 1 channel 8-bit PWM output shared with an I/O line
· Bit manipulation instruction
· 14-bit table read instruction
· 63 powerful instructions
· All instructions in one or two machine cycles
· Low voltage reset function
· 18-pin DIP/SOP package
General Description
The HT46R46/HT46C46 and HT46R47/HT46C47 are
8-bit, high performance, RISC architecture
microcontroller devices specifically designed for A/D
applications that interface directly to analog signals,
such as those from sensors. The mask version
HT46C46, HT46C47 are fully pin and functionally com-
patible with the OTP version HT46R46, HT46R47 de-
vice.
The advantages of low power consumption, I/O flexibil-
ity, programmable frequency divider, timer functions,
oscillator options, multi-channel A/D Converter, Pulse
Width Modulation function, HALT and wake-up func-
tions, enhance the versatility of these devices to suit a
wide range of A/D application possibilities such as sen-
sor signal processing, motor driving, industrial control,
consumer products, subsystem controllers, etc.
Rev. 1.00
1
December 28, 2004