MB2646 datasheet(7/16 Pages) PHILIPS

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Philips Semiconductors Products

Product specification

MB2646

Dual octal bus transceiver/registers (3-State)

August 23, 1993

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

130

190

130

MHz

tPLH

tPHL

Propagation delay

nCPAB to nBx or nCPBA to nAx

2.2

2.4

3.9

4.6

5.1

5.4

2.2

2.4

5.6

5.9

tPLH

tPHL

Propagation delay

nAx to nBx or nBx to nAx

1.5

3.1

3.3

4.3

4.5

1.5

4.8

5.0

tPLH

tPHL

Propagation delay

nSAB to nBx or nSBA to nAx

2, 3

1.5

1.8

3.7

3.9

4.8

4.9

1.5

1.8

5.5

5.6

tPZH

tPZL

Output enable time

nOE to nAx or nBx

1.5

2.1

3.5

4.4

4.8

5.6

1.5

2.1

5.6

6.4

tPHZ

tPLZ

Output disable time

nOE to nAx or nBx

2.1

1.5

3.8

3.1

5.0

4.2

2.1

1.5

5.7

4.7

tPZH

tPZL

Output enable time

nDIR to nAx or nBx

1.5

2.3

4.2

4.9

5.4

6.2

1.5

2.3

6.2

6.9

tPHZ

tPLZ

Output disable time

nDIR to nAx or nBx

2.1

1.5

3.8

3.2

5.0

4.3

2.1

1.5

5.7

5.0

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

nAx to nCPAB, nBx to nCPBA

2.0

1.5

0.7

0.0

2.0

1.5

th(H)

th(L)

Hold time

nAx to nCPAB, nBx to nCPBA

1.5

1.0

0.0

–0.7

1.5

1.0

tw(H)

tw(L)

Pulse width, High or Low

nCPAB or nCPBA

4.5

3.0

2.5

2.0

4.5

3.0

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