April 2007
rev 1.2
ASM2I9940L
Table 3. Pin Configuration
Pin #
Pin Name
I/O
Type
Function
5
PECL_CLK
Input
LVPECL
LVPECL Clock Inputs
6
3
PECL_CLK
LVCMOS_CLK
Input
Input
LVCMOS LVCMOS Clock Input
Selects either LVPECL or
4
LVCMOS_CLK_Sel
Q0–Q17
LVCMOS
LVCMOS input as Clock Source
32,31,30,28,27,26,24,23,22,
20,19,18,15,14,13,11,10,9
Output
LVCMOS Clock Outputs
2
GNDI
GNDO
VCCI
Supply
Supply
Supply
Supply
Core Negative Power Supply
Output Negative Power Supply
Core Positive Power Supply
Output Positive Power Supply
1,12,17,25
7,21
8, 16,29
VCCO
Table 4. Absolute Maximum Ratings1
Symbol
Parameter
Min
Max
Unit
VCC
Supply Voltage
-0.3
3.6
V
VI
IIN
Input Voltage
-0.3
VCC + 0.3
±20
V
Input Current
mA
°C
°C
TStor
Ts
Storage Temperature Range
Max. Soldering Temperature (10 sec)
-40
125
260
Static Discharge Voltage
(As per JEDEC STD22- A114-B)
TDV
2
KV
Note:1. These are stress ratings only and are not implied for functional use. Exposure to absolute maximum ratings for prolonged periods of time may affect
device reliability.
Low Voltage 1:18 Clock Distribution Chip
3 of 13
Notice: The information in this document is subject to change without notice.
PULSECORE [ PulseCore Semiconductor ]
