ComLink™ Series
CY2DP818
Document #: 38-07061 Rev. *A
Page 3 of 8
Table 3. Function Control of the TTL Input Logic used to Accept or Invert the Input Signal
LVTTL/LVCMOS Input Logic
Input Condition
Input Logic
Output Logic Q Pins, Q1A or Q1
Ground
Input B (–) Pin 11
Input A (+) Pin 10
Input
True
VCC
Input B (–) Pin 11
Input A (+) Pin 10
Input
Invert
Ground
Input A (+) Pin 10
Input B (–) Pin 11
Input
Invert
VCC
Input A (+) Pin 10
Input B (–) Pin 11
Input
True
Table 4. DC Electrical Characteristics: 3.3V–LVDS Input
Parameter
Description
Conditions
Min.
Typ.
Max.
Unit
VID
Magnitude of Differential Input Voltage
100
600
mV
VIC
Common-mode of Differential Input
VoltageIVIDI (min. and max.)
IVIDI/2 2.4–(IVIDI/2)
V
VIH
Input High Voltage
Guaranteed Logic High Level
2
V
VIL
Input Low Voltage
Guaranteed Logic Low Level
0.8
V
IIH
Input High Current
VDD = Max.
VIN = VDD
±10
±20
µA
IIL
Input Low Current
VDD = Max.
VIN = VSS
±10
±20
µA
II
Input High Current
VDD = Max., VIN = VDD(Max.)
±20
µA
Table 5. DC Electrical Characteristics: 3.3V–LVPECL Input
Parameter
Description
Conditions
Min.
Typ.
Max.
Unit
VID
Differential Input Voltage p-p
Guaranteed Logic High Level
400
2600
mV
VIH
Input High Voltage
Guaranteed Logic High Level
2.15
2.4
V
VIL
Input Low Voltage
Guaranteed Logic Low Level
1.5
1.8
V
IIH
Input High Current
VDD = Max.
VIN = VDD
±10
±20
µA
IIL
Input Low Current
VDD = Max.
VIN = VSS
±10
±20
µA
II
Input High Current
VDD = Max., VIN = VDD(Max.)
±20
µA
VCM
Common-mode Voltage
225
mV
Table 6. DC Electrical Characteristics: 3.3V–LVTTL/LVCMOS Input
Parameter
Description
Conditions
Min.
Typ.
Max.
Units
VIH
Input High Voltage
Guaranteed Logic High Level
2
V
VIL
Input Low Voltage
Guaranteed Logic Low Level
0.8
V
IIH
Input High Current
VDD = Max
VIN = 2.7V
1
µA
IIL
Input Low Current
VDD = Max
VIN = 0.5V
–1
µA
II
Input High Current
VDD = Max., VIN = VDD(Max)
20
µA
VIK
Clamp Diode Voltage
VDD = Min., IIN = –18mA
–0.7
–1.2
V
VH
Input Hysteresis
80
mV
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