CY29949
Document #: 38-07289 Rev. *E
Page 3 of 7
Maximum Ratings[2]
Maximum Input Voltage Relative to VSS:............. VSS – 0.3V
Maximum Input Voltage Relative to VDD:............. VDD + 0.3V
Storage Temperature: ................................ –65°C to + 150°C
Operating Temperature:................................ –40°C to +85°C
Maximum ESD Protection .............................................. 2 kV
Maximum Power Supply:................................................ 5.5V
Maximum Input Current: ............................................ ±20 mA
This device contains circuitry to protect the inputs against
damage due to high static voltages or electric field; however,
precautions must be taken to avoid application of any voltage
higher than the maximum rated voltages to this circuit. For proper
operation, Vin and Vout should be constrained to the range:
VSS < (Vin or Vout) < VDD
Unused inputs must always be tied to an appropriate logic
voltage level (either VSS or VDD).
DC Parameters (VDD = VDDC = 3.3V ±10% or 2.5V ±5%, over the specified temperature range)
Parameter
Description
Conditions
Min
Typ
Max
Unit
VIL
Input Low Voltage
VDD = 3.3V, PECL_CLK single ended
1.49
–
1.825
V
VDD = 2.5V, PECL_CLK single ended
1.10
–
1.45
All other inputs
VSS
–0.8
VIH
Input High Voltage
VDD = 3.3V, PECL_CLK single ended
2.135
–
2.42
V
VDD = 2.5V, PECL_CLK single ended
1.75
–
2.0
All other inputs
2.0
–
VDD
IIL
Input Low Current[3]
–
–
–100
µA
IIH
Input High Current[3]
–
–
100
VPP
Peak-to-Peak Input Voltage
PECL_CLK
300
–
1000
mV
VCMR
Common Mode Range[4]
PECL_CLK
VDD = 3.3V
VDD – 2.0
–
VDD – 0.6
V
VDD = 2.5V
VDD – 1.2
–
VDD – 0.6
VOL
Output Low Voltage[5]
IOL = 20 mA
–
–
0.4
V
VOH
Output High Voltage[5]
IOH = –20 mA, VDD = 3.3V
2.5
–
–
V
IOH = –20 mA, VDD = 2.5V
1.8
–
IDDQ
Quiescent Supply Current
–
5
7
mA
IDD
Dynamic Supply Current
VDD = 3.3V, Outputs at 100 MHz,
CL = 30 pF
–
200
–
mA
VDD = 3.3V, Outputs at 160 MHz,
CL = 30 pF
–
330
–
VDD = 2.5V, Outputs at 100 MHz,
CL = 30 pF
–
140
–
VDD = 2.5V, Outputs at 160 MHz,
CL = 30 pF
–
235
–
Zout
Output Impedance
VDD = 3.3V
12
15
18
Ω
VDD = 2.5V
14
18
22
Cin
Input Capacitance
–
4
–
pF
Notes
2. Multiple Supplies: The voltage on any input or I/O pin cannot exceed the power pin during power up. Power supply sequencing is NOT required.
3. Inputs have pull-up/pull-down resistors that effect input current.
4. The VCMR is the difference from the most positive side of the differential input signal. Normal operation is obtained when the “High” input is within the VCMR
range and the input lies within the VPP specification.
5. Driving series or parallel terminated 50
Ω (or 50Ω to VDD/2) transmission lines.
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