HT45F77 datasheet(2/203 Pages) HOLTEK

2 / 203 page

Rev. 1.20

De�e��e� 1�� 201�

Rev. 1.20

De�e��e� 1�� 201�

HT45F77

Body Fat Scale Flash MCU

HT45F77

Body Fat Scale Flash MCU

Table of Contents

Features............................................................................................................ 7

CPU Featu�es ......................................................................................................................... 7

Pe�iphe�al Featu�es................................................................................................................. 7

General Description......................................................................................... 8

Block Diagram.................................................................................................. 8

Pin Assignment................................................................................................ 9

Pin Description .............................................................................................. 10

Absolute Maximum Ratings.......................................................................... 13

D.C. Characteristics....................................................................................... 13

A.C. Characteristics....................................................................................... 16

LDO + PGA + ADC + VCM Electrical Characteristics.................................. 17

Effe�tive Nu��e� of Bits (ENOB) .......................................................................................... 18

Operational Amplifier Electrical Characteristics (Body Fat Circuit) ......... 19

LCD D.C. Characteristics .............................................................................. 19

Power-on Reset Characteristics................................................................... 19

System Architecture...................................................................................... 20

Clo�king and Pipelining......................................................................................................... 20

P�og�a� Counte�................................................................................................................... 21

Sta�k ..................................................................................................................................... 22

A�ith�eti� and Logi� Unit – ALU .......................................................................................... 22

Flash Program Memory................................................................................. 23

St�u�tu�e................................................................................................................................ 23

Spe�ial Ve�to�s ..................................................................................................................... 23

Look-up Ta�le ....................................................................................................................... 23

Ta�le P�og�a� Exa�ple........................................................................................................ 2�

In Ci��uit P�og�a��ing – ICP ............................................................................................... 25

On Chip De�ug Suppo�t – OCDS ......................................................................................... 2�

In Appli�ation P�og�a��ing – IAP ........................................................................................ 2�

RAM Data Memory......................................................................................... 33

St�u�tu�e ............................................................................................................................... 33

Gene�al Pu�pose Data Me�o�y ............................................................................................ 33

Spe�ial Pu�pose Data Me�o�y ............................................................................................. 3�

Special Function Register Description........................................................ 35

Indi�e�t Add�essing Registe�s – IAR0� IAR1� IAR2 ............................................................... 35

Me�o�y Pointe�s – MP0� MP1L� MP1H� MP2L� MP2H......................................................... 35

A��u�ulato� – ACC............................................................................................................... 37

P�og�a� Counte� Low Registe� – PCL.................................................................................. 37

Look-up Ta�le Registe�s – TBLP� TBHP� TBLH..................................................................... 37

Status Registe� – STATUS ................................................................................................... 37

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