HT45R35V Datasheet, PDF (26/42 Pages) Holtek Semiconductor Inc – C/R to F Type 8-Bit OTP MCU

HT45R35V
Options
The following table shows the various options within the microcontroller. All of the options must be defined to ensure
proper system functioning.
No.
Function
Description
1 Wake up PA0~PA7 (bit option)
None wake-up or wake-up
2 Pull high PA0~PA7, PB0 and PB3~PB7 (bit option) None pull-high or pull-high
3 WDT clock source
4 WDT
WDTOSC or f_SYS/4
Enable or disable
5 CLRWDT
1 or 2 instructions
6 LVR
Enable or disable
7 OSC
X¢tal mode or RC mode
8 INT0 trigger edge
Disable, rising edge, falling edge or double edge
9 INT1 trigger edge
Disable, rising edge, falling edge or double edge
10 I/O or RC connection pins
PA0 or RC1, PA1 or RC2, PA2 or RC3, PA3 or RC4,
PA4 or RC9, PA5 or RC10, PA6 or RC11, PA7 or RC12
Application Circuits
R to F Application Circuit
10mF
0 .1 m F
V DD
100kW
0 .1 m F
VCC
V FD 0~V FD 23
VO
PB0
VDD
R eset
C ir c u it
RES
F1O
BZO
BZO
R s e n s o r1
RC1
R s e n s o r2
RC2
O SC
C ir c u it
S e e O s c illa to r
S e c tio n
VSS
O SC1
O SC2
R s e n s o r1 2
R C 12
*R
RREF
RCOUT
IN
*C
CREF
H T45R 35V
Rev. 1.00
26
January 15, 2009