ICS281
TRIPLE PLL FIELD PROG. SPREAD SPECTRUM CLOCK SYNTHESIZER
EPROM CLOCK SYNTHESIZER
DC Electrical Characteristics
Unless stated otherwise,
VDD = 3.3 V ±5%,
Ambient Temperature -40 to +85° C
Parameter
Operating Voltage
VDDO Voltage
Symbol
VDD
Conditions
Min.
3.135
1.80
Typ.
Max.
3.465
VDD
Units
V
V
mA
Config. Dependent - See
VersaClock
TM
Estimates
Operating Supply Current
Input High Voltage
IDD
Three 33.3333 MHz outs,
VDD=VDDO=3.3V;
PDTS = 1, no load, Note 1
PDTS = 0, no load, Note 1
S2:S0
S2:S0
VDD-0.5
0.4
ICLK
ICLK
I
OH
= -4 mA
I
OH
= -8 mA (Low Drive);
I
OH
= -12 mA (High Drive)
I
OL
= 8 mA (Low Drive);
I
OL
= 12 mA (High Drive)
Low Drive
High Drive
Nom. Output Impedance
Internal pull-up resistor
Internal pull-down
resistor
Input Capacitance
Z
O
R
PUS
R
PD
C
IN
S2:S0, PDTS
CLK outputs
Inputs
±40
±70
20
190
120
4
VDD-0.4
2.4
VDDO-0.4
0.4
VDD/2+1
VDD/2-1
VDD/2+1
0.4
20
mA
500
Input High Voltage
Input Low Voltage
Input High Voltage, PDTS
Input Low Voltage, PDTS
Input High Voltage
Input Low Voltage
Output High Voltage
(CMOS High)
Output High Voltage
Output Low Voltage
Short Circuit Current
V
IH
V
IL
V
IH
V
IL
V
IH
V
IL
V
OH
V
OH
V
OL
I
OS
µA
V
V
V
V
V
V
V
V
V
mA
Ω
kΩ
kΩ
pF
Note 1: Example with 25 MHz crystal input, three unloaded 33.3 MHz outputs and VDD = VDDO = 3.3 V.
IDT™ / ICS™
TRIPLE PLL FIELD PROG. SPREAD SPECTRUM CLOCK SYNTHESIZER 5
ICS281
REV F 051310
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
