74ABT646A datasheet(7/14 Pages) PHILIPS

部件名	74ABT646A

功能描述	Octal bus transceiver/register 3-State

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制造商	PHILIPS [NXP Semiconductors]

网页	http://www.nxp.com

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Philips Semiconductors

Product specification

74ABT646A

Octal bus transceiver/register (3-State)

1998 Feb 17

7

AC CHARACTERISTICS

GND = 0V, tR = tF = 2.5ns, CL = 50pF, RL = 500Ω

LIMITS

SYMBOL

PARAMETER

WAVEFORM

Tamb = +25oC

VCC = +5.0V

Tamb = -40 to

+85oC

VCC = +5.0V ±0.5V

UNIT

Min

Typ

Max

Min

Max

fMAX

Maximum clock frequency

1

125

350

125

MHz

tPLH

tPHL

Propagation delay

CPAB to Bn or CPBA to An

1

2.2

1.7

3.9

4.4

5.1

5.21

2.2

1.7

5.6

ns

tPLH

tPHL

Propagation delay

An to Bn or Bn to An

2

1.5

3.2

3.7

4.3

4.6

1.5

4.8

5.4

ns

tPLH

tPHL

Propagation delay

SAB to Bn or SBA to An

2

3

1.5

3.8

4.4

5.1

5.31

1.5

6.5

5.9

ns

tPZH

tPZL

Output enable time

OE to An or Bn

5

6

1.5

3.0

3.5

4.5

5.3

7.4

1.5

3.0

6.3

8.8

ns

tPHZ1

tPLZ

Output disable time

OE to An or Bn

5

6

1.5

4.0

3.3

4.81

4.0

1.5

5.31

4.5

ns

tPZH

tPZL

Output enable time

DIR to An or Bn

5

6

1.5

2.5

3.9

4.7

5.7

9.0

1.2

2.5

6.7

9.5

ns

tPHZ

tPLZ

Output disable time

DIR to An or Bn

5

6

1.5

4.0

3.5

5.0

4.7

1.5

5.7

6.0

ns

1. This data sheet limit may vary among suppliers.

AC SETUP REQUIREMENTS

GND = 0V, tR = tF = 2.5ns, CL = 50pF, RL = 500Ω

LIMITS

SYMBOL

PARAMETER

WAVEFORM

Tamb = +25oC

VCC = +5.0V

Tamb = -40 to +85oC

VCC = +5.0V ±0.5V

UNIT

Min

Typ

Min

ts(H)

ts(L)

Setup time

An to CPAB, Bn to CPBA

4

3.0

0.7

3.0

ns

th(H)

th(L)

Hold time

An to CPAB, Bn to CPBA

4

0.0

–0.5

0.0

ns

tw(H)

tw(L)

Pulse width, High or Low

CPAB or CPBA

1

4.0

0.9

1.4

4.0

ns

类似零件编号 - 74ABT646A

制造商	部件名	数据表	功能描述
NXP Semiconductors	74ABT646A	112Kb / 19P	Octal bus transceiver/register; 3-state Rev. 03-15 March 2010
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	74ABT646APW	112Kb / 19P	Octal bus transceiver/register; 3-state Rev. 03-15 March 2010

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类似说明 - 74ABT646A

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