HT67F40 datasheet(21/242 Pages) HOLTEK

21 / 242 page

HT67F30/HT67F40/HT67F50/HT67F60

TinyPowerTM A/D Flash Type 8-Bit MCU with LCD & EEPROM

Rev. 1.50

March 06 , 2012

Rev. 1.50

March 06 , 2012

Pin Name

Function

I/T

O/T

Pin-Shared Mapping

XT2

LXT pin

—

LXT

PB4

RES

Reset input

—

PB0

VDD

Power supply *

—

PWR

—

AVDD

ADC power supply *

—

PWR

—

VSS

Ground **

—

PWR

—

AVSS

ADC ground **

—

PWR

—

VLCD

LCD power supply

—

PWR

—

VMAX

IC maximum voltage,

connect to VDD,

VLCD1 or V1

—

PWR

—

V1,V2,C1,C2

LCD voltage pump

—

SEG0~7

LCD segment output

—

CMOS

PD0~PD7

SEG8~15

LCD segment output

—

CMOS

PE0~PE7

SEG16~23

LCD segment output

—

CMOS

PF0~PF7

SEG24~31

LCD segment output

—

CMOS

PH6~PH7, PB6~PB7,

PG6~PG7, PC6~PC7

SEG32~56

LCD segment output

—

CMOS

—

COM0~3

LCD common output

—

CMOS

—

Note: I/T: Input type; O/T: Output type

OP: Optional by configuration option (CO) or register option

PWR: Power; CO: Configuration option; ST: Schmitt Trigger input

CMOS: CMOS output; NMOS: NMOS output

AN: Analog input pin

HXT: High frequency crystal oscillator

LXT: Low frequency crystal oscillator

*: VDD is the device power supply while AVDD is the ADC power supply. The AVDD pin is

bonded together internally with VDD.

**: VSS is the device ground pin while AVSS is the ADC ground pin. The AVSS pin is

bonded together internally with VSS.

As the Pin Description Summary table applies to the package type with the most pins, not all

of the above listed pins may be present on package types with smaller numbers of pins.

HT67F40 Datasheet(PDF) 21 Page - Holtek Semiconductor Inc

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