DSC61XXB

DS20006155A-page 6

 2019 Microchip Technology Inc.

2.0

PIN DESCRIPTIONS

The DSC61xxB is a highly configurable device and can be factory programmed in many different ways to meet the

choose the necessary options, create the final part number, data sheet, and order samples. The descriptions of the pins

are listed in Table 2-1.

An explanation of the different options listed in Table 2-1 follows.

2.1

Pin 1

This is a control pin and may be configured to fulfill one

of three different functions. If not actively driven, a

10 kΩ pull-up resistor is recommended.

2.1.1

OUTPUT ENABLE (OE)

Pin 1 may be configured as OE. Oscillator output may

be turned on and off according to the state of this pin.

2.1.2

STDBY

Pin 1 may be configured as Standby. When the pin is

low, both output buffer and PLL will be off and the

device will enter a low power mode.

2.1.3

FREQUENCY SELECT (FS)

Pin 1 may be configured as FS. The output may be set

to one of two pre-programmed frequencies. The output

clock frequencies can only be set to either kHz or MHz.

A combination of kHz and MHz cannot be set.

2.2

Pins 2 through 4

Pins 2 and 4 are the supply terminals, GND and VDD

respectively. Pin 3 is the clock output, programmable to

Standard and High Drive strength settings. Visit

ClockWorks® Configurator to customize your device.

2.3

Output Buffer Options

The DSC61xx family is available in multiple output

driver configurations.

The standard-drive (61x1) and high-drive (61x2) 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:

DSC61XXB PIN FUNCTION TABLE

Pin Number

Pin Name

Description

1

(Note 1)

OE

Output Enable: H = Active, L = Disabled (High Impedance).

STDBY

Standby: H = Device is active, L = Device is in standby (Low Power Mode).

FS

Frequency Select: H = Output Frequency 1, L = Output Frequency 2.

2

GND

Ground.

3

Output

Oscillator clock output.

4

VDD

Power supply: 1.71V to 3.63V.

Note 1: DSC610xB/1xB/3xB has a 300 kΩ internal pull-up resistor on pin 1. DSC614xB/5xB/7xB has no internal

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