HT46R22/HT46C22
8-Bit A/D Type MCU
Features
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Operating voltage:
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Up to 0.5ms instruction cycle with 8MHz system clock
f
SYS
=4MHz: 2.2V~5.5V
f
SYS
=8MHz: 4.5V~5.5V
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19 bidirectional I/O lines (max.)
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1 interrupt input shared with an I/O line
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8-bit programmable timer/event counter with over-
at V
DD
=5V
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6-level subroutine nesting
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8 channels 9-bit resolution (8-bit accuracy) A/D con-
verter
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1-channel (6+2)/(7+1)-bit PWM output shared with
flow interrupt and 7-stage prescaler
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On-chip crystal and RC oscillator
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Watchdog Timer
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2048麓14 program memory ROM
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64麓8 data memory RAM
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Supports PFD for sound generation
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HALT function and wake-up feature reduce power
two I/O lines
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Bit manipulation instruction
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14-bit table read instruction
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63 powerful instructions
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All instructions in one or two machine cycles
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Low voltage reset function
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I
2
C BUS (slave mode)
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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 appli-
cations. It is particularly suitable for use in products
such as washing machine controllers and home appli-
ances. A HALT feature is included to reduce power con-
sumption.
I C is a trademark of Philips Semiconductors
2
Rev. 1.10
1
October 2, 2002