HT46R32 データシートの表示（PDF） - Holtek Semiconductor

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HT46R32

A/D Type 8-Bit OTP MCU with OPA

Holtek Semiconductor 

HT46R32/HT46R34

Pin Assignment

PB5 1

PB4 2

P A 3 /P F D 3

PA2 4

PA1 5

PA0 6

P B 3 /A N 3 7

P B 2 /A N 2 8

P B 1 /A N 1 9

P B 0 /A N 0 1 0

A P O 11

A P N 12

A P P 13

V S S 14

28 P B 6

27 P B 7

2 6 P A 4 /T M R

2 5 P A 5 /IN T

24 P A 6

23 P A 7

22 O S C 2

21 O S C 1

20 V D D

19 R E S

1 8 P D 0 /P W M 0

1 7 P D 1 /P W M 1

16 P D 2

15 P D 3

H T 4 6 R 3 2 /H T 4 6 R 3 4

2 8 S K D IP -A /S O P -A /S S O P -A

Pin Description

Pin Name

PA0~PA2

PA3/PFD

PA4/TMR

PA5/INT

PA6, PA7

PB0/AN0

PB1/AN1

PB2/AN2

PB3/AN3

PB4~PB7

PD0/PWM0

PD1/PWM1

PD2

PD3

APO

APN

APP

RES

VDD

VSS

OSC1

OSC2

I/O

Options

Description

Bidirectional 8-bit input/output port. Each pin can be configured as wake-up

Pull-high input by configuration options. Software instructions determine if the pin is a

I/O

Wake-up CMOS output or Schmitt trigger input. Configuration options determine which

PA3 or PFD pins on the port have pull-high resistors. The PFD, TMR and INT pins are

pin-shared with PA3, PA4 and PA5, respectively.

Bidirectional 8-bit input/output port. Software instructions determine if the

pin is a CMOS output or Schmitt trigger input. Configuration options determine

I/O

Pull-high

which pins on the port have pull-high resistors. Pins PB0~PB3 are pin-shared

with the A/D input pins. The A/D inputs are selected via software instructions.

Once selected as an A/D input, the I/O function and pull-high resistor are dis-

abled automatically.

I/O

Pull-high

PD0 or PWM0

PD1 or PWM1

Bi-directional 4-bit input/output port. Software instructions determine if the

pin is a CMOS output or Schmitt trigger input. Configuration options determine

which pins on this port have pull-high resistors. PD0/PD1 are pin-shared with

the PWM0/PWM1 outputs selected via configuration option.

O

I

I

¾

APO, APN and APP are the internal operational amplifier, output pin, nega-

tive input pin and positive input pin respectively .

I

¾

Schmitt trigger reset input. Active low.

¾

¾

Positive power supply

¾

¾

Negative power supply, ground.

OSC1, OSC2 are connected to an external RC network or external crystal,

I

Crystal

determined by configuration option, for the internal system clock. If the RC

O

or RC

system clock option is selected, pin OSC2 can be used to measure the sys-

tem clock at 1/4 frequency.

Rev. 1.10

3

March 16, 2007

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