74ACTQ16543CW 查看數據表（PDF） - Fairchild Semiconductor

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74ACTQ16543CW

16-Bit Registered Transceiver with 3-STATE Outputs

Fairchild Semiconductor 

Extended AC Electrical Characteristics

TA = −40 to +85°C

VCC = Com

TA = −40 to +85°C

Symbol

Parameter

CL = 50 pF

VCC = Com

Units

16 Outputs Switching

(Note 10)

CL = 250 pF

(Note 11)

Min

Typ

Max

Min

Max

tPLH

Propagation Delay

4.5

tPHL

Transparent Mode

3.7

An to Bn or Bn to An

tPLH

Propagation Delay

4.3

tPHL

LEBAn, LEABn to An, Bn

3.7

tPZH

Output Enable Time

4.0

tPZL

OEBAn or OEABn to An or Bn

4.3

11.1

5.8

14.3

9.6

5.1

13.4

ns

11.3

6.2

16.3

ns

9.7

5.8

14.9

10.7

11.3

(Note 12)

ns

CEBAn or CEABn to An or Bn

tPHZ

Output Disable Time

3.0

tPLZ

OEBAn or OEABn to An or Bn

2.8

8.0

7.6

(Note 13)

ns

tOSHL

(Note 14)

CEBAn or CEABn to An or Bn

Pin to Pin Skew

HL Data to Output

1.1

ns

tOSLH

(Note 14)

Pin to Pin Skew

LH Data to Output

1.4

ns

tOSHL

(Note 14)

Pin to Pin Skew

Latch to Output

2.6

ns

tOSLH

(Note 14)

Pin to Pin Skew

Latch to Output

1.0

ns

tOST

(Note 14)

Pin to Pin Skew

Data to Output

1.0

ns

tOST

(Note 14)

Pin to Pin Skew

Latch to Output

2.2

ns

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 Capacitance

Power Dissipation.Capacitance

Typ

Units

Conditions

4.5

95.0

pF

VCC = 5.0V

pF

VCC = 5.0V

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