November 2006
rev 1.6
ASM3P2870A
Pin Configuration (6-pin TSOT- 23 Package)
REFOUT
1
2
3
6
5
4
VSS
ASM3P2870A
XOUT
ModOUT
VDD
XIN / CLKIN
Pin Description
Pin#
Pin Name
Type
Description
REFOUT
1
2
3
O
O
I
Buffered output of the input frequency
XOUT
Crystal connection. If using an external reference, this pin must be left unconnected.
Crystal connection or external reference frequency input. This pin has dual functions. It
can be connected either to an external crystal or an external reference clock.
XIN / CLKIN
4
5
6
VDD
ModOUT
VSS
P
O
P
Power supply for the entire chip.
Spread spectrum clock output.
Ground connection.
Pin Configuration (8-pin SOIC and TSSOP Packages)
XIN / CLKIN
XOUT
8
1
2
3
VDD
7
6
5
NC
ASM3P2870A
ModOUT
VSS
REFOUT
NC
4
Pin Description
Pin# Pin Name Type
Description
Crystal connection or external reference frequency input. This pin has dual functions. It
1
XIN/CLKIN
I
can be connected either to an external crystal or an external reference clock.
2
3
4
5
6
7
8
XOUT
REFOUT
NC
O
O
-
Crystal connection. If using an external reference, this pin must be left unconnected.
Buffered output of the input frequency
No connect.
VSS
P
O
-
Ground connection.
ModOUT
NC
Spread spectrum clock output.
No connect.
VDD
P
Power supply for the entire chip.
Low Power Peak EMI Reducing Solution
2 of 12
Notice: The information in this document is subject to change without notice.
PULSECORE [ PulseCore Semiconductor ]
