Si51210

8

Preliminary Rev. 0.7

4. Pin Descriptions: 6-Pin TDFN

Table 5. Si51210 6-Pin Descriptions

Pin #

Name

Type

Description

1

VDD

PWR 2.5 to 3.3 V power supply.

2

XIN/CLKIN

I

External crystal and clock input.

3

XOUT

O

Crystal output. Leave this pin unconnected (floating) if an external clock

input is used.

4

SSCLK1/REFCLK/

FSEL/SSEL/SSON/

OE2

I/O

Programmable SSCLK1 or REFCLK output or MultiFunction control

input. The frequency at this pin is synthesized by internal PLL if pro-

grammed as SSCLK1 with or without spread. If programmed as REF-

CLK, output clock is buffered output of crystal or reference clock input. If

programmed as MultiFunction control input, it can be OE, FSEL, SSEL

and SSON.

5

SSCLK2/REFCLK_D/

OE1/FSEL/SSEL/

SSON/PD

I/O

Programmable SSCLK2 or REFCLK_D output or MultiFunction control

input. The frequency at this pin is synthesized by internal PLL if pro-

grammed as SSCLK2 with or without spread. If programmed as

REFCLK_D, output clock is buffered output of crystal or reference clock

input divided by 2 to 32. If programmed as MultiFunction control input, it

can be OE, PD, FSEL, SSEL and SSON.

6

VSS

GND Ground.

6

5

4

1

2

3

VSS

SSCLK2/REFCLK_D

FSEL/SSEL/

SSON/PD/OE1

SSCLK1/REFCLK

FSEL/SSEL/

SSON/OE2

VDD

XOUT

XIN/CLKIN

Si51210