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HT46C22

Holtek Semiconductor Inc
Part Number HT46C22
Manufacturer Holtek Semiconductor Inc
Description 8-Bit A/D Type MCU
Published Mar 26, 2005
Detailed Description HT46R22/HT46C22 8-Bit A/D Type MCU Features · Operating voltage: · Up to 0.5ms instruction cycle with 8MHz system clock ...
Datasheet PDF File HT46C22 PDF File

HT46C22
HT46C22

Overview
HT46R22/HT46C22 8-Bit A/D Type MCU Features · Operating voltage: · Up to 0.
5ms instruction cycle with 8MHz system clock fSYS=4MHz: 2.
2V~5.
5V fSYS=8MHz: 4.
5V~5.
5V · 19 bidirectional I/O lines (max.
) · 1 interrupt input shared with an I/O line · 8-bit programmable timer/event counter with over- at VDD=5V · 6-level subroutine nesting · 8 channels 9-bit resolution (8-bit accuracy) A/D con- verter · 1-channel (6+2)/(7+1)-bit PWM output shared with flow interrupt and 7-stage prescaler · On-chip crystal and RC oscillator · Watchdog Timer · 2048´14 program memory ROM · 64´8 data memory RAM · Supports PFD for sound generation · HALT function and wake-up feature reduce power two I/O lines · Bit manipulation instruction · 14-bit table read instruction · 63 powerful instructions · All instructions in one or two machine cycles · Low voltage reset function · I2C BUS (slave mode) · 24-pin SKDIP/SOP package consumption General Description The device is an 8-bit high performance RISC-like microcontroller designed for multiple I/O product applications.
It is particularly suitable for use in products such as washing machine controllers and home appliances.
A HALT feature is included to reduce power consumption.
I C is a trademark of Philips Semiconductors 2 Rev.
1.
10 1 October 2, 2002 HT46R22/HT46C22 Block Diagram P A 5 /IN T In te rru p t C ir c u it S T A C K P ro g ra m R O M P ro g ra m C o u n te r IN T C T M R T M R C P A 3 /P .
D M U P r e s c a le r X P A 4 /T M R fS Y S P A 4 S Y S C L K /4 In s tr u c tio n R e g is te r M P M U X D A T A M e m o ry P W W D T P r e s c a le r M P O R T D W D T M U X R C O S C P D C P D In s tr u c tio n D e c o d e r A L U T im in g G e n e ra to r S h ifte r P A 3 , P A 5 M U X P D 0 /P W M 8 -C h a n n e l A /D C o n v e rte r S T A T U S P B C P B P O R T B P B 0 /A N 0 ~ P B 7 /A N 7 P A P A P A P A P A P A 0 ~ P 3 /P 4 /T 5 /IN 6 /S 7 /S A 2 .
D M R T D A C L P A C O S C 2 O S R E V D V S S S D C 1 P O...


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