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HT46R221 Datasheet

  • HT46R221

  • 8-Bit A/D Type MCU

  • 46頁

  • HOLTEK

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

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