HT56R67 datasheet(6/104 Pages) HOLTEK

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The following tables depict the device dependent pins.

Pin Name

I/O

Configuration

Option

Description

HT56R67

PC0~PC7

I/O

Bidirectional 8-bit input/output port. Software instructions determine the

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

termined by PCPU register control bit)

VMAX

IC maximum voltage, connect to VDD,VLCD1 or V1

VLCD1/VLCD2/V1,

C1, C2

¾¾

LCD Voltage pump pins for C-type biasing.

For R-type biasing only pin VLCD1 are used.

SEG0~SEG9

SEG10/SDO

SEG11/SDI/SDA

SEG12/SCK/SCL

SEG13/SCS

SEG14/PCLK

SEG15/PINT

SEG16~SEG47

I/O

SIM

PINT

SEG0~SEG47 are LCD driver outputs for LCD panel segments.

SEG10 is pin-shared with the SPI bus data output line, SDO.

SEG11 is pin-shared with the SPI bus data input line, SDI and the I

2C Bus

data line SDA.

SEG12 is pin-shared with the SPI bus clock line, SCK and the I

2C Bus

clock line SCL.

SEG13 is pin-shared with the SPI bus select line, SCS.

SEG14 is pin-shared with the Peripheral Clock line, PCLK.

SEG15 is pin-shared with the Peripheral Interrupt line, PINT.

The SEG0~SEG23 lines can be can be chosen to be either segment driv-

ers or CMOS outputs using control bits in the LCD control registers.

COM0~COM2

COM3/SEG48

COM0~COM2 are the LCD common outputs. A bit in the LCD Control

driver or as a common output driver.

HT56R668/HT56C668/HT56R678/HT56C678/HT56R688

VLCD

LCD bias pin

- must less than or equal to VDD

SEG0/SDO

SEG1/SDI/SDA

SEG2/SCK/SCL

SEG3/SCS

SEG4/PCLK

SEG5/PINT

SEG6~SEG63

COM15/SEG64~

COM8/SEG71

I/O

SIM

PINT

SEG0~SEG63 are LCD driver outputs for LCD panel segments.

SEG0 is pin-shared with the SPI bus data output line, SDO.

SEG1 is pin-shared with the SPI bus data input line, SDI and the I

2C Bus

data line SDA.

SEG2 is pin-shared with the SPI bus clock line, SCK and the I

2C Bus clock

line SCL.

SEG3 is pin-shared with the SPI bus select line, SCS.

SEG4 is pin-shared with the Peripheral Clock line, PCLK.

SEG5 is pin-shared with the Peripheral Interrupt line, PINT.

The SEG0~SEG23 lines can be can be chosen to be either segment driv-

ers or CMOS outputs using control bits in the LCD control registers.

COM0~COM7

COM0~COM7 are the LCD common outputs.

Note:

The Pin Description tables represents the largest package type available, therefore some of the pins and func-

tions may not be available on smaller package types.

Absolute Maximum Ratings

Supply Voltage ...........................VSS

-0.3V to VSS+6.0V

Storage Temperature ............................

-50°Cto125°C

Input Voltage..............................VSS

-0.3V to VDD+0.3V

Operating Temperature...........................

-40°Cto85°C

IOL Total ................................................................80mA

IOH Total..............................................................

-80mA

Total Power Dissipation .....................................500mW

Note: These are stress ratings only. Stresses exceeding the range specified under

²Absolute Maximum Ratings² may

cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed

in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.

HT56R67/HT56R668/HT56C668/HT56R678/HT56C678/HT56R688

Rev. 1.20

March 4, 2010

HT56R67 Datasheet(PDF) 6 Page - Holtek Semiconductor Inc

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