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PL904XXX Datasheet, PDF (3/15 Pages) Micrel Semiconductor – a small form-factor, high performance, programmable device
Micrel, Inc.
PL904xxx
Pin Description
Pin Number
Pin Name
Pin Type
Pin Level Pin Function
18, 19
22, 23
OUTB, /OUTB
OUTA, /OUTA
O
Various
Clock outputs.
Can be programmed to one of the following logic types:(1)
LVPECL, LVDS, HCSL, or LVCMOS.
26, 27
REFIN, /REFIN
I
Various
Reference clock input.
Can be programmed to either differential or single-ended use.
20
16
OE_A
OE_B
Output Enable, Outputs disable to tri-state,
I
CMOS
0 = Disabled, 1 = Enabled, on-chip 75kΩ pull-up
1, 2, 5, 8, 25
VDD
PWR
Core power supply.
28
VDDI
PWR
Input circuit power supply, +3.3V only.
24
VDDA
PWR
Analog circuit power supply.
21
17
EPAD
VDDOA
VDDOB
VSS
PWR
PWR
Output buffers power supply.
Power supply ground and thermal relief.(2)
11
GND
I
This pin is not power supply ground, but must be tied to VSS
for proper operation.
3, 4, 6, 7, 9, 10,
12, 13, 14, 15,
29, 30, 31, 32
DNC
Internally connected. Do not connect anything to these pins.
Note:
1. In case of LVCMOS, only the true output pin is enabled. The complementary output pin is disabled to a high impedance.
2. Exposed package pad is electrically active and must be connected to ground.
September 11, 2015
3
Revision 1.0
tcghelp@micrel.com or (408) 955-1690