GPC3LP170A

© Generalplus Technology Inc.

Proprietary & Confidential

4

Apr. 17, 2014

Version: 1.0

5. SIGNAL DESCRIPTIONS

PIN Name

Type

Description

IOA[7:0]

I/O

IOA[7:0] is a bi-directional I/O port, which can be software programmed as wakeup I/O.

1Mohm or 100Kohm pull low resistor

IOA7 shares pad with IR output

IOA[4:3]shares pad with detect IO function

IOA3 also shares pad with SDA when serial programming cycle

IOA[2:1]shares pad with feedback function

IOA2 also shares pad with SCK when serial programming cycle

IOA1 shares pad with external clock input

IOA0 shares pad with external interrupt input

IOB[7:0]

I/O

IOB[7:0] is a bi-directional I/O port, which can be software programmed as wakeup I/O.

1Mohm or 100Kohm pull low resistor

IOB5 shared pad with XTAL 32KHz input

IOB4 shared pad with XTAL 32KHz output

IOB[3:0] shared pad with 256-level PWM output

IOC[3:0]

I/O

IOC[3:0] is a bi-directional I/O port, which can be software programmed as wake up I/O.

1Mohm or 100Kohm pull low resistor

IOC1 shares pad with XTAL8M output

IOC0 shares pad with ROSC8M or XTAL8M input

VDD15

P

Power PAD for DC-DC .

VSS15

G

Ground PAD for DC-DC.

LX1

I

Must short to LX2 externally

Inductance input of DC-DC(Inductance must be connected to VDD15)

LX2

I

Must short to LX1 externally

Inductance input of DC-DC(Inductance must be connected to VDD15)

VDDO

O

DC-DC Pumped voltage output

VDD_REGIN

P

Power supply voltage input for regulator and should be shorted to VDDO through 10 ohm

resistor

VDD_REGOUT

P

Power supply voltage output for regulator and should be shorted to VDD externally

VDD

P

Power supply voltage input for logic circuit and should be shorted to VDD_REGOUT

externally

VPP

P

Power supply voltage input for OTP ROM

VSS2

G

Ground reference for logic circuit

VSS3

G

Ground reference for logic circuit

VSS4

G

Ground reference for VPP

VDDIO

P

Power supply voltage input for IO PAD

VSS1

G

Ground reference for IO PAD

PVDD

P

PWM driver power

PVSS

G

PWM driver ground reference

RESB

I

System reset input, low active (with pull high)

TEST

I

Test pin, high active (with pull low)

EPM

I

Enable Program Mode pin, high active (with pull low)

AUDP, AUDN

O

PWM output

Total: 41 Pins

Legend: I=Input, O=Output, P=Power, G=Ground