8-Bit A/D Type MCU
HT46R22/HT46C22 8-Bit A/D Type MCU
Features
· Operating voltage: · Up to 0.5ms instruction cycle with 8MHz system clock
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Description
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
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