74F646A datasheet(8/16 Pages) PHILIPS

部件名	74F646A

功能描述	Octal transceiver/register, non-inverting 3-State

Download	16 Pages

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制造商	PHILIPS [NXP Semiconductors]

网页	http://www.nxp.com

标志

8 / 16 page

Philips Semiconductors

Product specification

74F646/A/74F648/A

Transceivers/registers

1990 Sep 25

8

AC ELECTRICAL CHARACTERISTICS FOR 74F646

LIMITS

Tamb = +25°C

Tamb = 0°C to +70°C

SYMBOL

PARAMETER

TEST CONDITION

VCC = +5.0V

VCC = +5.0V ± 10%

UNIT

CL = 50pF, RL = 500Ω

MIN

TYP

MAX

MIN

MAX

fmax

Maximum clock frequency

Waveform 1

100

115

90

MHz

tPLH

tPHL

Propagation delay

CPAB or CPBA to An or Bn

Waveform 1

5.5

7.5

8.0

10.0

5.0

11.5

11.0

ns

tPLH

tPHL

Propagation delay

An to Bn or Bn to An

Waveform 2

4.0

6.0

6.5

9.0

8.0

4.0

10.0

ns

tPLH

tPHL

Propagation delay

SAB or SBA to An or Bn

Waveform 2, 3

5.0

7.0

6.5

8.5

4.5

10.5

9.5

ns

tPZH

tPZL

Output enable time

OE to An or Bn

Waveform 5

Waveform 6

5.0

6.5

7.0

8.5

10.0

11.0

4.5

6.0

11.0

12.5

ns

tPZH

tPZL

Output enable time

DIR to An or Bn

Waveform 5

Waveform 6

4.5

6.0

6.5

8.5

9.0

11.0

4.0

5.5

10.0

12.5

ns

tPHZ

tPLZ

Output disable time

OE to An or Bn

Waveform 5

Waveform 6

6.5

9.0

11.5

6.0

12.5

13.5

ns

tPHZ

tPLZ

Output disable time

DIR to An or Bn

Waveform 5

Waveform 6

5.5

8.5

11.0

4.5

5.0

13.0

12.5

ns

AC SETUP REQUIREMENTS FOR 74F646

LIMITS

Tamb = +25°C

Tamb = 0°C to +70°C

SYMBOL

PARAMETER

TEST CONDITION

VCC = +5.0V

VCC = +5.0V ± 10%

UNIT

CL = 50pF, RL = 500Ω

CL= 50pF, RL = 500Ω

MIN

TYP

MAX

MIN

MAX

tsu (H)

tsu (L)

Setup time, high or low

An or Bn to CPAB or CPBA

Waveform 4

4.5

5.0

ns

th (H)

th (L)

Hold time, high or low

An or Bn to CPAB or CPBA

Waveform 4

0

ns

tw (H)

tw (L)

Pulse width, high or low

CPAB or CPBA

Waveform 1

4.0

6.0

4.0

6.0

ns

类似零件编号 - 74F646A

制造商	部件名	数据表	功能描述
Fairchild Semiconductor	74F646	78Kb / 9P	Octal Transceiver/Register with 3-STATE Outputs
National Semiconductor ...	74F646	216Kb / 12P	Octal Transceiver/Register with TRI-STATE Outputs
Fairchild Semiconductor	74F646	71Kb / 6P	Octal Transceiver/Register with 3-STATE Outputs
National Semiconductor ...	74F646B	216Kb / 12P	Octal Transceiver/Register with TRI-STATE Outputs
National Semiconductor ...	74F646BFCQB	216Kb / 12P	Octal Transceiver/Register with TRI-STATE Outputs

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类似说明 - 74F646A

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