74VCX162838 查看數據表（PDF） - Fairchild Semiconductor

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74VCX162838

Low Voltage 16-Bit Selectable Register/Buffer with 3.6V Tolerant Inputs and Outputs and 26Ω Series Resistors in the Outputs

Fairchild Semiconductor 

AC Electrical Characteristics (Note 8)

TA = −40°C to +85°C, CL = 30 pF, RL = 500Ω

Symbol

Parameter

VCC = 3.3V ± 0.3V

VCC = 2.5V ± 0.2V

VCC = 1.8V

Units

Min

Max

Min

Max

Min

Max

fMAX

Maximum Clock Frequency

250

200

100

MHz

tPHL, tPLH Prop Delay In to On (REGE = 0)

0.8

3.5

1.0

4.9

1.5

9.8

ns

tPHL, tPLH Prop Delay CP to On (REGE = 1)

0.8

3.9

1.0

5.4

1.5

9.8

ns

tPHL, tPLH Prop Delay REGE to On

0.8

3.9

1.0

5.4

1.5

9.8

ns

tPZL, tPZH Output Enable Time

0.8

4.0

1.0

5.7

1.5

9.8

ns

tPLZ, tPHZ Output Disable Time

0.8

4.1

1.0

4.6

1.5

8.3

ns

tS

Setup Time

1.0

1.0

2.5

ns

tH

Hold Time

0.7

0.7

1.0

ns

tW

Pulse Width

1.5

1.5

4.0

ns

tOSHL

tOSLH

Output to Output Skew (Note 9)

0.5

0.5

0.75

ns

Note 8: For CL = 50PF, add approximately 300 ps to the AC maximum specification.

Note 9: Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The

specification applies to any outputs switching in the same direction, either HIGH-to-LOW (tOSHL) or LOW-to-HIGH (tOSLH).

Extended AC Electrical Characteristics (Note 10)

Symbol

Parameter

tPHL, tPLH Prop Delay In to On (REGE = 0)

tPHL, tPLH Prop Delay CP to On (REGE = 1)

tPHL, tPLH Prop Delay REGE to On

tPZL, tPZH Output Enable Time

tPLZ, tPHZ Output Disable Time

tS

Setup Time

tH

Hold Time

Note 10: This parameter is guaranteed by characterization but not tested.

TA = −0°C to +85°C, RL = 500Ω VCC = 3.3V ± 0.3V

CL = 50 pF

Min

Max

1.0

3.8

1.4

4.2

1.0

4.2

1.0

4.3

1.0

4.4

1.0

0.7

Units

ns

ns

ns

ns

ns

ns

ns

Dynamic Switching Characteristics

Symbol

Parameter

VOLP

Quiet Output Dynamic Peak VOL

VOLV

Quiet Output Dynamic Valley VOL

VOHV

Quiet Output Dynamic Valley VOH

Conditions

CL = 30 pF, VIH = VCC, VIL = 0V

CL = 30 pF, VIH = VCC, VIL = 0V

CL = 30 pF, VIH = VCC, VIL = 0V

VCC

TA = +25°C Units

(V)

Typical

1.8

0.15

2.5

0.25

V

3.3

0.35

1.8

−0.15

2.5

−0.25

V

3.3

−0.35

1.8

1.55

2.5

2.05

V

3.3

2.65

Capacitance

Symbol

Parameter

CIN

COUT

CPD

Input Capacitance

Output Capacitance

Power Dissipation Capacitance

Conditions

TA = +25°C

Typical

VCC = 1.8V, 2.5V or 3.3V, VI = 0V or VCC

6

VI = 0V or VCC, VCC = 1.8V, 2.5V or 3.3V

7

VI =0V or VCC, f = 10 MHz, VCC = 1.8V, 2.5V or 3.3V

20

Units

pF

pF

pF

5

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