HT49RV5 View Datasheet(PDF) - Holtek Semiconductor

Part Name

Description

Manufacturer

HT49RV5

A/D With VFD Type 8-Bit MCU

Holtek Semiconductor 

HT49RV5/HT49CV5

Pin Assignment

O SC2 1

O SC1 2

RES 3

P A 0 /B Z 4

P A 1 /B Z 5

PA2 6

P A 3 /P F D 7

PA4 8

PA5 9

P A 6 10

P A 7 11

P B 0 /A N 0 1 2

P B 1 /A N 1 1 3

P B 2 /A N 2 1 4

P B 3 /A N 3 1 5

V S S 16

P D 0 /P W M 0 1 7

P D 1 /P W M 1 1 8

P D 4 /IN T 0 1 9

P D 5 /IN T 1 2 0

P D 6 /T M R 0 2 1

P D 7 /T M R 1 2 2

V S S 23

P C 6 24

P C 7 /R M T 2 5

S E G 0 26

S E G 1 27

S E G 2 28

56 V D D

55 O S C 3

54 O S C 4

53 S D I

52 S D O

51 S C K

50 S C S

4 9 G R ID 0

4 8 G R ID 1

4 7 G R ID 2

4 6 G R ID 3

4 5 G R ID 4

4 4 G R ID 5

43 V D D

42 V E E

4 1 S E G 1 5 /G R ID 6

4 0 S E G 1 4 /G R ID 7

3 9 S E G 1 3 /G R ID 8

3 8 S E G 1 2 /G R ID 9

3 7 S E G 1 1 /G R ID 1 0

36 S E G 10

35 S E G 9

34 S E G 8

33 S E G 7

32 S E G 6

31 S E G 5

30 S E G 4

29 S E G 3

Note:

H T 4 9 R V 5 /H T 4 9 C V 5

5 6 S S O P -A

Each VDD (VSS) pins must be connected to the power (ground) of the system.

Pin Description

Pin Name I/O

PA0/BZ

PA1/BZ

PA2

I/O

PA3/PFD

PA4~PA7

PB0/AN0~

PB3/AN3

I/O

PC6

PC7/RMT

I/O

Options

Wake-up

Pull-high

Buzzer

PFD

Pull-high

Pull-high

Description

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

input by configuration option. Software instructions determine if the pin is a

CMOS output or Schmitt trigger input with or without pull-high resistor (deter-

mined by pull-high options: bit option). Pins PA0, PA1 and PA3 are

pin-shared with BZ, BZ and PFD, respectively.

Bidirectional 4-bit input/output port. Software instructions determine if the pin

is a CMOS output or Schmitt trigger input with or without pull-high resistor

(determined by pull-high option: bit option) or A/D input. Once a PB line is se-

lected as an A/D input (by using software control), the I/O function and

pull-high resistor are disabled automatically.

Bidirectional 2-bit input/output port. Software instructions determine if the pin

is a CMOS output or Schmitt trigger input with or without pull-high resistor

(determined by pull-high option: bit option). RMT with wake-up function (both

rising and falling edge) and Schmitt trigger input with or without a pull-high re-

sistor (determined by pull-high option).

Note:The RMT is pin-shared with PC7. When PC7/RMT pin uses as the input

mode of RMT function , suggesting the user to set PC7 as input mode for

safety. And so that I/O function of PC7 will not influence the RMT input func-

tion.

Rev. 1.20

3

April 14, 2006

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