HT85F2270 datasheet(19/226 Pages) HOLTEK

19 / 226 page

Rev. 1.00

19 of ��6

�a� 1�� 01�

Standard 8051 8-Bit Flash MCU

HT85F2260/HT85F2270/HT85F2280

5 Pin Assignment

HT 85F 2280/ 2270/ 2260

48 LQ FP -A

13 1 4 15 1 6 17 1 8 19 2 0 21 2 2 23 2 4

48 4 7 46 4 5 44 4 3 42 4 1 40 3 9 38 3 7

P0 .3 /S CK

P0 .2 /S SN

P0 .1 /C 1O UT

P0 .0 /IC PD A/ TD A

R ESE T/ IC PC K/ TC K

OS C1

OS C2

P5 .4 /C 0O UT

VS S

VD D

P5 .5 /X T1

P5 .6 /X T2

P2 .7 /T 3

P1 .0 /IN T3 /C C0

P1 .1 /IN T4 /C C1

P1 .2 /IN T5 /C C2

P1 .3 /IN T6 /C C3

P1 .4 /IN T2

P1 .5 /T 2E X

P1 .6 /T 2

AI N. 5/ P4 .5

AI N. 4/ P4 .4

AI N. 3/ P4 .3

AI N. 2/ P4 .2

HT 85F 2280/ 2270

64 LQ FP -A

20 21 22 23 24 25 26 27 28

29 30 31 32

17 18 19

P5 .7 /D AC

VSS

VC CA 2

CP 1-

CP 1+

CP 0-

CP 0+

VR EF

VSS

VC CA 3

AI N. 0/ P4 .0

AI N. 1/ P4 .1

AI N. 2/ P4 .2

AI N. 3/ P4 .3

AI N. 4/ P4 .4

AI N. 5/ P4 .5

P0 .4 /M IS O

P0 .5 /M OS I

P0 .6 /S CL

P0 .7 /S DA

P3 .0 /R XD 0

P3 .1 /T XD 0

P3 .2 /I NT 0

P3 .3 /I NT 1

VC CA 1

VS S

P3 .4 /T 0

P3 .5 /T 1

P3 .6 /R XD 1

P3 .7 /T XD 1

P2 .0

P2 .1

Note: 1. If the pin-shared pin functions have multiple outputs simultaneousl�� its pin names at the right side of the “/”

sign can be used for higher priorit�.

�. For both the 48 LQFP-A and 64 LQFP-A packages� both real IC and OCDS EV IC share the same

package.

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