OV7640 datasheet(4/20 Pages) ETC1

4 / 20 page

Proprietary to OmniVision Technologies

Version 1.4, March 6, 2003

OV7640/OV7141

CMOS VGA (640 x 480) CAMERACHIP™

Omni ision

Pin Description

Table 1

Pin Description

Pin Number

Name

Pin Type

Function/Description

VSS_A

Ground

Analog ground

VDD_A

VDD

Analog VDD

—

No connection

—

No connection

PWDN

Input

Sets device to power down standby mode

—

No connection

VREF

Internal voltage reference (2.3V). Connect to ground through 1μF capacitor

VDD_C

VDD

Core VDD

VSYNC

Output

Vertical sync output

HREF

Output

HREF output

PCLK

Output

Pixel clock output

VDD_IO

VDD

I/O VDD

CLK

Input

External clock

—

No connection

RESET

Input

Clears all registers and resets them to their default values.

—

No connection

VSS_D

Ground

Digital ground

Output

Digital video output bit[7]

Output

Digital video output bit[6]

Output

Digital video output bit[5]

Output

Digital video output bit[4]

Output

Digital video output bit[3]

Output

Digital video output bit[2]

Output

Digital video output bit[1]

Output

Digital video output bit[0]

SIO_C

Input

SCCB serial interface clock

SIO_D

I/O

SCCB serial interface data I/O

—

No connection

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