ICS853S54I Datasheet, PDF (2/21 Pages) Integrated Device Technology – Maximum output frequency

ICS853S54I Data Sheet
DUAL 2:1, 1:2 DIFFERENTIAL-TO-LVPECL/ECL MULTIPLEXER
Table 1. Pin Descriptions
Number
1, 2
3, 4
5
6
7
8
9
10
11
12
13
14
15, 16
Name
QB0, nQB0
QB1, nQB1
PCLKB
nPCLKB
CLK_SELB
V_EE
nPCLKA1
PCLKA1
nPCLKA0
PCLKA0
V_CC
CLK_SELA
nQA, QA
Type
Output
Output
Input
Pulldown
Input
Pullup/
Pulldown
Input
Pulldown
Power
Input
Input
Input
Input
Power
Pullup/
Pulldown
Pulldown
Pullup/
Pulldown
Pulldown
Input
Pulldown
Output
Description
Differential output pair. LVPECL/ECL interface levels.
Differential output pair. LVPECL/ECL interface levels.
Non-inverting LVPECL/ECL differential clock input.
Inverting differential LVPECL clock input. V_CC/2 default when left floating.
Clock select pin for QBx outputs. When HIGH, selects QB1/nQB1 outputs.
When LOW, selects QB0/nQB0 outputs. LVCMOS/LVTTL interface levels.
Negative supply pin.
Inverting differential LVPECL clock input. V_CC/2 default when left floating.
Non-inverting LVPECL/ECL differential clock input.
Inverting differential LVPECL clock input. V_CC/2 default when left floating.
Non-inverting LVPECL/ECL differential clock input.
Positive supply pin.
Clock select pin for QA output. When HIGH, selects QA output. When LOW,
selects nQA output. LVCMOS/LVTTL interface levels.
Differential output pair. LVPECL/ECL interface levels.
NOTE: Pullup and Pulldown refer to internal input resistors. See Table 2, Pin Characteristics, for typical values.
Table 2. Pin Characteristics
Symbol
C_IN
R_PULLDOWN
R_VCC/2
Parameter
Input Capacitance
Input Pullup Resistor
RPullup/Pulldown Resistor
Test Conditions
Minimum
Typical
2
37.5
37.5
Maximum
Units
pF
k
k
Function Tables
Table 3A. Control Input Function Table, (Bank A)
Bank A
Control Input
Outputs
CLK_SELA
QA, nQA
0 (default)
Selects PCLKA0, nPCLKA0
1
Selects PCLKA1, nPCLKA1
Table 3B. Control Input Function Table, (Bank B)
Bank B
Control Input Outputs
CLK_SELB QB0, nQB0
QB1, nQB1
0 (default) Follows PCLKB input Logic Low
1
Logic Low
Follows PCLKB input
ICS853S54AKI REVISION A OCTOBER 30, 2012
2
©2012 Integrated Device Technology, Inc.