VV6501 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

View to exact match

VV6501

VGA CMOS Color Image Sensor

STMicroelectronics 

VV6501

Functional Description

3.3.2

Power-on reset cell

The power-on reset cell generates a low going pulse whenever the digital power supplies are below

their lower limits. The power-on reset signal resets the sensor internally and is also available on the

PORB pin and may be used to reset a co-processor.

The PORB cell monitors both the 3V3 and 1V8 supplies. If the 1V8 supply is not required then

PDVREG1V8 must be tied high.

Figure 20: Power-on reset block

Regulated supply

Threshold

PORB

3 V/1V8

0V

CLKIN

VDIG3V3

VDIG1V8

PDREG1V8

PORB block

3V3 power-on 0000

reset cell

00 00

00 00

1V8 power-on

reset cell

PORB

25/60

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