DSC63XX

DS20005808A-page 6

 2017 Microchip Technology Inc.

2.0

PIN DESCRIPTIONS

The descriptions of the pins are listed in Table 2-1.

2.1

Output Buffer Options

The DSC63xx family is available in multiple output driver configurations.

The standard-drive (63x1) and high-drive (63x2) deliver respective output currents of greater than 3 mA and 6 mA at

20%/80% of the supply voltage. For heavy loads of 15 pF or higher, the high-drive option is recommended.

TABLE 2-1:

DSC63XX PIN FUNCTION TABLE (OUTPUT FREQUENCY ≥1MHZ)

Pin Number

Pin Name

Pin Type

Description

1

OE

I

Output Enable: H = Specified Frequency Output, Note 1,

Note 2

L = Output is high impedance

STDBY

Standby: H = Specified Frequency Output, Note 1, Note 2

L = Output is high impedance. Device is in low power

SSEN

Spread Spectrum Enable: H = Enabled

L = Disabled, Note 1

2

GND

Power

Power supply ground

3

Output

O

Oscillator clock output

4

VDD

Power

Power supply, Note 3

Note 1: DSC630x/1x/3x has 300 kΩ internal pull-up resistor on pin 1. DSC634x/5x/7x has no internal pull-up resis-

tor on pin 1 and needs an external pull-up or to be driven by other chip.

2: If pin 1 is configured as either OE or STDBY, then the Spread Spectrum is enabled by default.