HT45R37 Datasheet, PDF (70/99 Pages) Holtek Semiconductor Inc – TinyPowerTM C/R-F Type 8-Bit OTP MCU

HT45R37
No.
Options
Timer/Event Counter and External Interrupt Pins Filter Option
23 Interrupt and Timer/Event Counter input pins internal filter On/Off control - applies to all pins
C/R to F Converter Option
24 I/O pins or C/R to F converter inputs
Application Circuits
C/R to F Application Circuit 1
V DD
0 .0 1 m F
0 .1 m F
1N 4148
10kW ~
100kW
300W
0 .1 ~ 1 m F
VDD
P B 0 /A N 0 ~
P B 5 /A N 5
R eset
C ir c u it
P C 0 /R E S
RC0
VSS
RC1
R s e n s o r0
R s e n s o r1
O SC
C ir c u it
P C 1 /O S C 1
R C 15
R s e n s o r1 5
P C 2 /O S C 2
RREF
*R
S e e O s c illa to r
S e c tio n
R C O U T /IN
*C
CREF
O SC
P C 3 /O S C 3
C ir c u it
P C 4 /O S C 4
S e e O s c illa to r
S e c tio n
H T45R 37
C/R to F Application Circuit 2
V DD
0 .0 1 m F
VDD
P B 0 /A N 0 ~
P B 5 /A N 5
0 .1 m F
1N 4148
10kW ~
100kW
R eset
C ir c u it
0 .1 ~ 1 m F
P C 0 /R E S
300W
VSS
C s e n s o r0
RC0
C s e n s o r1
RC1
O SC
C ir c u it
C s e n s o r1 5
P C 1 /O S C 1
R C 15
P C 2 /O S C 2
RREF
*R
S e e O s c illa to r
S e c tio n
R C O U T /IN
*C
CREF
O SC
C ir c u it
P C 3 /O S C 3
P C 4 /O S C 4
S e e O s c illa to r
S e c tio n
H T45R 37
Rev. 1.00
70
June 25, 2009