HT45F4M View Datasheet(PDF) - Holtek Semiconductor

Part Name

Description

Manufacturer

HT45F4M

Lithium Battery Backup Power ASSP MCU

Holtek Semiconductor 

HT45F4M

Lithium Battery Backup Power ASSP MCU

Pin Assignment

P B 3 /T P 1 _ 0 1

PB2 2

P B 1 /T P 1 _ 1 3

P B 0 /T P 0 _ 1 4

PB6 5

P A 7 /T P 0 _ 0 /A N 7 /IC P C K /O C D S C K

6

P A 6 /IN T 1 /T C K 1 /A N 6 /IC P D A /O C D S D A 7

P A 5 /IN T 0 /T C K 0 /A N 5 8

1 6 P B 5 /O U T L

1 5 P B 4 /O U T H

14 V D D

13 V S S

1 2 P A 0 /O V P /A N 0

1 1 P A 1 /D A P W R /A N 1 /V R E F

1 0 P A 3 /O C P /A N 3

9 P A 4 /A N 4

HT45F4M 16 NSOP- A

P B 3 /T P 1 _ 0 1

PB2 2

P B 1 /T P 1 _ 1 3

P B 0 /T P 0 _ 1 4

PB7 5

PB6 6

NC 7

NC 8

P A 7 /T P 0 _ 0 /A N 7 /IC P C K /O C D S C K 9

P A 6 /IN T 1 /T C K 1 /A N 6 /IC P D A /O C D S D A 1 0

2 0 P B 5 /O U T L

1 9 P B 4 /O U T H

18 V D D

17 V S S

1 6 P A 0 /O V P /A N 0

1 5 P A 1 /D A P W R /A N 1 /V R E F

1 4 P A 2 /A N 2

1 3 P A 3 /O C P /A N 3

1 2 P A 4 /A N 4

1 1 P A 5 /IN T 0 /T C K 0 /A N 5

HT45F4M 20 SSOP- A

Note: 1. If the pin-shared pin functions have multiple outputs simultaneously, its pin names at the

right side of the “/” sign can be used for higher priority.

2. Both real IC and OCDS EV IC share the same package. The OCDS EV IC is HT45V4M.

The OCDSCK and OCDSDA pins are only for the OCDS EV IC.

Rev. 1.10

8

January 15, 2013

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