Part Number
|
HT46R221 |
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
|
HT46R221
|
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 m...
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