Pin # Name Type Description
14 SDA I/O I2C compatible SDATA
15 SCLK I I2C compatible SCLOCK
16 FS I Frequency select pin. 0 = 100 MHz, mid = 200 MHz, 1 = 133 MHz (This pin has an
internal pull-down)
17 DIFF_0 O, DIF 0.7 V, 100 MHz differential clock
18 DIFF_0b O, DIF 0.7 V, 100 MHz differential clock
19 OE_0b I, PD Output enable for DIFF_0 pair (This pin has an internal pull-down). 0 = Enable out-
puts; 1 = Disable outputs
20 OE_1b I, PD Output enable for DIFF_1 pair (This pin has an internal pull-down). 0 = Enable out-
puts; 1 = Disable outputs
21 DIFF_1 O, DIF 0.7 V, 100 MHz differential clock
22 DIFF_1b O, DIF 0.7 V, 100 MHz differential clock
23 GND GND Ground
24 VDD PWR Power supply
25 VDD_IO PWR Output power supply
26 DIFF_2 O, DIF 0.7 V, 100 MHz differential clock
27 DIFF_2b O, DIF 0.7 V, 100 MHz differential clock
28 OE_2b I, PD Output enable for DIFF_2 pair (This pin has an internal pull-down). 0 = Enable out-
puts; 1 = Disable outputs
29 OE_3b I, PD Output enable for DIFF_3 pair (This pin has an internal pull-down). 0 = Enable out-
puts; 1 = Disable outputs
30 DIFF_3 O, DIF 0.7 V, 100 MHz differential clock
31 DIFF_3b O, DIF 0.7 V, 100 MHz differential clock
32 VDD_IO PWR Output power supply
33 GND GND Ground
34 DIFF_4 O, DIF 0.7 V, 100 MHz differential clock
35 DIFF_4b O, DIF 0.7 V, 100 MHz differential clock
36 OE_4b I, PD Output enable for DIFF_4 pair (This pin has an internal pull-down). 0 = Enable out-
puts; 1 = Disable outputs
37 OE_5b I, PD Output enable for DIFF_5 pair (This pin has an internal pull-down). 0 = Enable out-
puts; 1 = Disable outputs
38 DIFF_5 O, DIF 0.7 V, 100 MHz differential clock
39 DIFF_5b O, DIF 0.7 V, 100 MHz differential clock
40 VDD PWR Power supply
41 GND GND Ground
42 DIFF_6 O, DIF 0.7 V, 100 MHz differential clock
43 DIFF_6b O, DIF 0.7 V, 100 MHz differential clock
44 OE_6b I, PD Output enable for DIFF_6 pair (This pin has an internal pull-down). 0 = Enable out-
puts; 1 = Disable outputs
45 OE_7b I, PD Output enable for DIFF_7 pair (This pin has an internal pull-down). 0 = Enable out-
puts; 1 = Disable outputs
Si52212/Si52208/Si52204/Si52202 Data Sheet
Pin Descriptions
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