ICS8501 Datasheet, PDF (3/8 Pages) Integrated Circuit Systems – Low Skew 1-to-16 Differential Current Mode Fanout Buffer

Integrated
Circuit
Systems, Inc.
ICS8501
LOW SKEW 1-TO-16 DIFFERENTIAL
CURRENT MODE FANOUT BUFFER
ABSOLUTE MAXIMUM RATINGS
Supply Voltage
Inputs
Outputs
Ambient Operating Temperature
Storage Temperature
4.6V
-0.5V to VCC+0.5 V
-0.5V to VCC+0.5V
0°C to 70°C
-65°C to 150°C
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These ratings are stress specifications
only and functional operation of the device at these or any conditions beyond those listed in the DC Electrical Characteristics or AC Electrical
Characteristics is not implied. Exposure to absolute maximum rating conditions for extended periods may affect product reliability.
TABLE 4. DC ELECTRICAL CHARACTERISTICS, VCC = 3.3V±5%, TA = 0°C TO 70°C
Symbol
Parameter
Test Conditions
Minimum Typical Maximum Units
VCC
Operating Supply Voltage
3.135
3.3
3.465
V
VPP
Peak-to-Peak Input Voltage
0.31
1.3
V
VCMR
Common Mode Input Voltage;
NOTE 1
LVPECL Levels
1.8
DCM, HSTL, LVDS, SSTL Levels
0.31
2.4
V
1.3
V
IIH
Input High Current
CLK, nCLK
VIN = VCC
5
µA
IIL
Input Low Current
CLK, nCLK
VIN = 0V
-5
µA
ICC
Operating Supply Current
70
mA
IOH
Output Current; NOTE 2
3.135V ≤ VCC ≤ 3.465V
11
14
17
mA
VOH
Output High Voltage
RREF = 475Ω, RLOAD = 50Ω
0.6
0.71
1.2
V
VOL
Output Low Voltage
RREF = 475Ω, RLOAD = 50Ω
0
0.05
V
NOTE 1: Common mode input voltage for LVPECL is defined as the minimum VIH. The LVPECL values noted in Table 4A are for VCC = 3.3V.
VCMR for LVPECL will vary 1:1 with VCC. Common mode input voltage for DCM, HSTL, LVDS and SSTL is defined as the crossover
voltage. See Figure 1A and 1B.
NOTE 2: IOH is the current per output being supplied to the load and should be included in the total supply current calculation. Therefore
ICC(total) is equal to IOH times 16 plus ICC.
TABLE 5. AC ELECTRICAL CHARACTERISTICS, VCC = 3.3V±5%, TA = 0°C TO 70°C
Symbol
fMAX
tpLH
Parameter
Maximum Input Frequency
Propagation Delay, Low-to-High
Test Conditions
Measured at the -3dB rolloff of the
peak-to-peak output voltage
0 < f ≤ 250MHz
Minimum
2
Typical
Maximum
500
3
Units
MHz
ns
tpHL
Propagation Delay, High-to-Low
0 < f ≤ 250MHz
2
3
ns
tsk(o)
Output Skew; NOTE 3
Measured on at VOX
100
ps
tsk(pp)
Part-to-Part Skew; NOTE 4
Measured on at VOX
650
ps
tR
Output Rise Time
20% to 80%
175
700
ps
tF
Output Fall Time
20% to 80%
175
700
ps
tPW
Output Pulse Width
tCYCLE/2
- 0.3
tCYCLE/2
tCYCLE/2
+ 0.3
ns
VOX
Output Crossover Voltage
40% VOH
60% VOH
V
NOTE 1: All parameters measured at 250MHz unless noted otherwise.
NOTE 2: RREF equals 475Ω. Outputs terminated with 50Ω resistor connected to ground.
NOTE 3: Defined as skew across outputs at the same supply voltages and with equal load conditions.
NOTE 4: Defined as skew at different outputs on different devices operating at the same supply voltages and with equal load conditions.
8501
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REV. A - AUGUST 23, 2000