HT46R321 데이터 시트보기 (PDF) - Holtek Semiconductor

부품명

상세내역

제조사

HT46R321

A/D Type 8-Bit OTP MCU with OPA and 8
4 LED Driver

Holtek Semiconductor 

Pin Assignment

P B 5 /A N 5 1

P B 4 /A N 4 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 /A P O 1 0

A P N 11

A P P 12

V S S 13

P D 4 14

2 8 P D 5 /T M R

2 7 P D 6 /IN T

26 P A 4

25 P A 5

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

1 6 P D 2 /P C K

15 P D 3

H T46R 321

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

HT46R321

Pin Description

Pin Name I/O Options

Description

PA0~PA2

PA3/PFD

PA4~PA7

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 pin is pin-shared with PA3.

PA0~PA7 can be used as LED driver (source end).

PB0/AN0/APO,

PB1/AN1~

I/O

PB5/AN5

Pull-high

6 lines AD input pun-shared with PB.

Bidirectional 6-bit input/output port. Software instructions determine if the

pin is a CMOS output or Schmitt Trigger input. Configuration options deter-

mine which pins on the port have pull-high resistors. Pins PB 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.

About PB0/AN0/APO: If the pin is PB0 (setting by ADCS.PCR3~0=00), ADC

and OP amp should be power off automatically.

If the pin is AN0 (setting by ADCS.PCR3~0), APO is connected with AN0 pin

together and OP amp on/off is controlled by OPAC.OPAEN.

PD0/PWM0

PD1/PWM1

PD2/PCK

PD3~PD4,

PD5/TMR

PD6/INT

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

I/O

Pull-high

PD0 or PWM0

PD1 or PWM1

PD2 or PCK

pin is a CMOS output or Schmitt Trigger input. Configuration options deter-

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

with the PWM0/PWM1 outputs selected via configuration option.

PD0, PD1, PD2, PD5, PD6 are pin-shared with the PWM0, PWM1, PCK,

TMR, INT output selected via configuration option.

PD1~PD4 can be used as LED driver (sink end).

APN

APP

I

I

¾

APN and APP are the internal operational amplifier, negative input pin and

positive input pin respectively .

RES

I

¾

Schmitt trigger reset input. Active low.

VDD

¾

¾

Positive power supply

VSS

OSC1

OSC2

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. 1.00

3

August 3, 2007

Share Link: