74ACTQ16540SSC 查看數據表（PDF） - Fairchild Semiconductor

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74ACTQ16540SSC

16-Bit Registered Transceiver with 3-STATE Outputs

Fairchild Semiconductor 

AC Electrical Characteristics

Symbol

Parameter

tPLH

Propagation Delay

tPHL

Data to Output

tPZH

Output Enable

tPZL

Time

tPHZ

Output Disable

tPLZ

Time

Note 8: Voltage Range 5.0 is 5.0V ± 0.5V.

VCC

(V)

(Note 8)

5.0

5.0

5.0

TA = +25°C

CL = 50 pF

Typ

Min

Max

2.7

4.9

7.3

3.0

5.1

7.3

2.5

4.8

7.4

2.7

5.3

8.0

2.5

5.4

8.3

2.3

5.0

7.4

TA = −40°C to +85°C

CL = 50 pF

Min

Max

2.7

7.8

3.0

7.8

2.5

7.9

2.7

8.5

2.5

8.7

2.3

7.9

Units

ns

ns

ns

Extended AC Electrical Characteristics

TA = −40°C to +85°C

CL = 50 pF

TA = −40°C to +85°C

Symbol

Parameter

VCC

16 Outputs Switching

CL = 250 pF

Units

(V)

(Note 10)

(Note 11)

(Note 9)

Min

Typ

Max

Min

Max

tPLH

tPHL

tPZH

tPZL

tPHZ

tPLZ

tOSHL

(Note 14)

Propagation Delay,

Data to Output

Output Enable Time

Output Disable Time

Pin to Pin Skew,

HL Data to Output

4.0

5.0

4.0

3.2

5.0

3.4

3.8

5.0

3.1

5.0

12.6

5.6

15.5

ns

10.0

5.6

13.6

10.8

ns

(Note 12)

10.8

9.5

ns

(Note 13)

9.2

1.2

ns

tOSLH

Pin to Pin Skew,

5.0

2.5

ns

(Note 14) LH Data to Output

tOST

Pin to Pin Skew,

5.0

4.3

ns

(Note 14) LH/HL Data to Output

Note 9: Voltage Range 5.0 is 5.0V ± 0.5V.

Note 10: This specification is guaranteed but not tested. The limits apply to propagation delays for all paths described switching in phase (i.e., all LOW-to-

HIGH, HIGH-to-LOW, etc.).

Note 11: This specification is guaranteed but not tested. The limits represent propagation delays with 250 pF load capacitors in place of the 50 pF load

capacitors in the standard AC load. This specification pertains to single output switching only.

Note 12: 3-STATE delays are load dominated and have been excluded from the datasheet.

Note 13: The Output Disable Time is dominated by the RC network (500Ω, 250 pF) on the output and has been excluded from the datasheet.

Note 14: Skew is defined as the absolute value of the difference between the actual propagation delays for any two separate outputs of the same device.

The specification applies to any outputs switching HIGH-to-LOW (tOSHL), LOW-to-HIGH (tOSLH), or any combination switching LOW-to-HIGH and/or HIGH-

to-LOW (tOST).

Capacitance

Symbol

CIN

CPD

Parameter

Input Pin Capacitance

Power Dissipation Capacitance

Typ

Units

Conditions

4.5

pF

VCC = 5.0V

30

pF

VCC = 5.0V

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