ICS8533AG-11 查看數據表（PDF） - Integrated Circuit Systems
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ICS8533AG-11
Integrated Circuit Systems
ICS8533AG-11 Datasheet PDF : 15 Pages
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Integrated
Circuit
Systems, Inc.
ICS8533-11
LOW SKEW, 1-TO-4, CRYSTAL OSCILLATOR/
DIFFERENTIAL-TO-3.3V LVPECL FANOUT BUFFER
TABLE 1. PIN DESCRIPTIONS
Number
Name
Type
Description
1
VEE
Power
Negative supply pin. Connect to ground.
Synchroning clock enable. When HIGH, clock outputs follows clock
2
CLK_EN
Input
Pullup input. When LOW, Q outputs are forced low, nQ outputs are forced
high. LVCMOS / LVTTL interface levels.
3
CLK_SEL
Input
Pulldown
Clock select input. When LOW, selects CLK, nCLK input.
When HIGH, selects XTAL input. LVCMOS / LVTTL interface levels.
4
CLK
Input Pulldown Non-inverting differential clock input.
5
nCLK
Input
Pullup Inverting differential clock input.
6
XTAL1
Input Pulldown Crystal oscillator input.
7
XTAL2
Input
Pullup Crystal oscillator input.
8, 9
nc
Unused
No connect.
10, 13, 18
11, 12
VCC
nQ3, Q3
Power
Output
Positive supply pins. Connect to 3.3V.
Differential clock outputs. LVPECL interface levels.
14, 15
nQ2, Q2
Output
Differential clock outputs. LVPECL interface levels.
16, 17
nQ1, Q1
Output
Differential clock outputs. LVPECL interface levels.
19, 20
nQ0, Q0
Output
Differential clock outputs. LVPECL interface levels.
NOTE: Pullup and Pulldown refers to internal input resistors. See Table 2, Pin characteristics, for typical values.
TABLE 2. PIN CHARACTERISTICS
Symbol
CIN
RPULLUP
RPULLDOWN
Parameter
CLK, nCLK
Input Capacitance
CLK_EN, CLK_SEL
Input Pullup Resistor
Input Pulldown Resistor
Test Conditions
Minimum
Typical
51
51
Maximum
4
4
Units
pF
pF
KΩ
KΩ
REV. D JULY 16, 2001
2
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