Datasheet mb2646 DATASHEETS (Philips)

Philips Semiconductors Products

Product specification

MB2646

Dual octal bus transceiver/registers (3-State)

1

August 23, 1993 853-1617 10589

FEATURES

•Independent registers for A and B buses

•Multiple V

CC

and GND pins minimize

switching noise

•Live insertion/extraction permitted

•Power-up 3-State

•Power-up reset

•Multiplexed real-time and stored data

•Outputs sink 64mA and source 32mA

•Latch-up protection exceeds 500mA per

Jedec JC40.2 Std 17

•ESD protection exceeds 2000V per MIL

STD 883 Method 3015 and 200V per Machine Model

DESCRIPTION

The MB2646 high-performance BiCMOS device combines low static and dynamic power dissipation with high speed and high output drive.

The MB2646 dual transceiver/register consists of two sets of bus transceiver circuits with 3-State outputs, D-type flip-flops, and control circuitry arranged for multiplexed transmission of data directly from the input bus or from the internal registers. Data on the A or B bus will be clocked into the registers as the appropriate clock pin goes High. Output Enable (nOE

) and Direction (nDIR) pins are provided to control the transceiver function. In the transceiver mode, data present at the high impedance port may be stored in either the A or B register or both.

QUICK REFERENCE DATA

SYMBOL PARAMETER

CONDITIONS

T

amb

= 25°C; GND = 0V

TYPICAL UNIT

t

PLH

t

PHL

Propagation delay nAx to nBx

CL = 50pF; VCC = 5V 3.2 ns

C

IN

Input capacitance VI = 0V or V

CC

4 pF

C

I/O

I/O capacitance VO = 0V or VCC; 3-State 7 pF

I

CCZ

Total supply current Outputs disabled; VCC = 5.5V 500 µA

ORDERING INFORMATION

PACKAGES TEMPERATURE RANGE ORDER CODE DRAWING NUMBER

52-pin plastic Quad Flat Pack -40°C to +85°C MB2646BB 1418B

PIN CONFIGURATION LOGIC SYMBOL

Vcc Vcc

19 2220 231716 25 26241514 2118

1A2 1A3 1A4

GND

1A5 1A6 1A7 2A0 2A1 2A2 2A3 2A4 2A5

1 2

3 4

5 6 7 8

9 10 11 12 13

47 4446 434950 41 40425152 4548

1B2 1B3 1B4 1B5 1B6 1B7 2B0 2B1 2B2 GND 2B3 2B4 2B5

39 38 37 36

35 34 33 32 31 30 29 28 27

MB2646

52-pin PQFP

1A1

1A0

1SAB

1CPAB

1DIR

1OE

1CPBA

1SBA

GND

1B0

1B1

Vcc

2A6

2A7

GND

2SAB

2CPAB

2DIR

2OE

2CPBA

2SBA

2B7

2B6

Vcc

42 41 39 38 37 36 35 34

1B0 1B1 1B2 1B3 1B4 1B5 1B6 1B7

50 51 1 2 3 5 6 7

1A0 1A1 1A2 1A3 1A4 1A5 1A6 1A7

48 49

1CPAB

1SAB 47 1DIR 45 1CPBA

33 32 31 29 28 27 25 24

2B0 2B1 2B2 2B3 2B4 2B5 2B6 2B7

8 9 10 11 12 13 15 16

2A0 2A1 2A2 2A3 2A4 2A5 2A6 2A7 19

18

2CPAB

2SAB 20 2DIR 22 2CPBA

44 1SBA 46 1OE

23 2SBA 21 2OE

Philips Semiconductors Products Product specification

MB2646

Dual octal bus transceiver/registers (3-State)

August 23, 1993

2

DESCRIPTION (continued)

The select (nSAB, nSBA) pins determine whether data is stored or transferred through the device in real-time. The nDIR determines which bus will receive data when the nOE

is

active Low. In the isolation mode (nOE

= High), data from Bus A may be stored in the B register and/or data from Bus B may be stored in the A register. When an output

function is disabled, the input function is still enabled and may be used to store and transmit data. Only one of the two buses, A or B may be driven at a time.

PIN DESCRIPTION

PIN NUMBER SYMBOL NAME AND FUNCTION

48, 45, 19, 22 1CPAB, 1CPBA, 2CPAB, 2CPBA Clock input A to B / Clock input B to A 49, 44, 18, 23 1SAB, 1SBA, 2SAB, 2SBA Select input A to B / Select input B to A

47, 20 1DIR, 2DIR Direction control inputs

50, 51, 1, 2, 3, 5, 6, 7,

8, 9, 10, 11, 12, 13, 15, 16

1A0 – 1A7,

2A0 – 2A7

Data inputs/outputs (A side)

42, 41, 39, 38, 37, 36, 35, 34,

33, 32, 31, 29, 28, 27, 25, 24

1B0 – 1B7,

2B0 – 2B7

Data inputs/outputs (B side)

46, 21 1OE, 2OE Output enable inputs

4, 17, 30, 43 GND Ground (0V)

14, 26, 40, 52 V

CC

Positive supply voltage

LOGIC SYMBOL (IEEE/IEC)

50

41

39

38

37

36

35

34

46

47 44 49 45 48

51

1

2

3

5

6

7

42

8

32

31

29

28

27

25

24

21

20 23 18 22 19

9

10

11

12

13

15

16

33

≥1

∇1

G3 3EN1 [BA] 3EN2 [AB] G6 G7 C4 C5

5D 7 1 7

6 4D 6

1

≥1

2∇

≥1

∇1

G3 3EN1 [BA] 3EN2 [AB] G6 G7 C4 C5

5D 7 1 7

6 4D 6

1

≥1

2∇

Philips Semiconductors Products Product specification

MB2646

Dual octal bus transceiver/registers (3-State)

August 23, 1993

3

The following examples demonstrate the four fundamental bus-management functions that can be performed with the MB2646.

}

REAL TIME BUS TRANSFER

BUS B TO BUS A

nOE nDIR nCPAB nCPBA nSAB nSBA

L L X X X L

}

REAL TIME BUS TRANSFER

BUS A TO BUS B

nOE nDIR nCPAB nCPBA nSAB nSBA

L H X X L X

}

STORAGE FROM

A, B, OR A AND B

nOE nDIR nCPAB nCPBA nSAB nSBA

L H ↑ X X X L L X ↑ X X H X ↑ ↑ X X

}

TRANSFER STORED DATA

TO A OR B

nOE nDIR nCPAB nCPBA nSAB nSBA

L L X H | L X H L H H | L X H X

A B A B A B

A B

Philips Semiconductors Products Product specification

MB2646

Dual octal bus transceiver/registers (3-State)

August 23, 1993

4

LOGIC DIAGRAM

1D

C1

Q

nB1 nB2 nB3 nB4 nB5 nB6 nB7

nA1 nA2 nA3 nA4 nA5 nA6 nA7

DETAIL A X 7

nOE

nDIR

nCPBA

nSBA

nCPAB

nSAB

nB0

1D

C1

Q

nA0

1of 8 Channels

FUNCTION TABLE

INPUTS DATA I/O OPERATING MODE

nOE nDIR nCPAB nCPBA nSAB nSBA nAx nBx

X X ↑ X X X Input

Unspecified

output*

Store A, B unspecified

X X X ↑ X X

Unspecified

output*

Input Store B, A unspecified

H H

X X

↑

H or L

↑

H or L

X X

Input Input

Store A and B data Isolation, hold storage

L L

X X

X

H or L

X X

L H

Output Input

Real time B data to A bus Stored B data to A bus

L L

H H

X

H or L

X X

L H

X X

Input Output

Real time A data to B bus Stored A data to B bus

H = High voltage level L = Low voltage level X = Don’t care ↑ = Low-to-High clock transition * The data output function may be enabled or disabled by various signals at the nOE

input. Data input functions are always enabled, i.e.,

data at the bus pins will be stored on every Low-to-High transition of the clock.

Philips Semiconductors Products Product specification

MB2646

Dual octal bus transceiver/registers (3-State)

August 23, 1993

5

ABSOLUTE MAXIMUM RATINGS

1, 2

SYMBOL

PARAMETER CONDITIONS RATING UNIT

V

CC

DC supply voltage –0.5 to +7.0 V

I

IK

DC input diode current VI < 0 –18 mA

V

I

DC input voltage

3

–1.2 to +7.0 V

I

OK

DC output diode current VO < 0 –50 mA

V

OUT

DC output voltage

3

output in Off or High state –0.5 to +5.5 V

I

OUT

DC output current output in Low state 128 mA

T

stg

Storage temperature range –65 to 150 °C

NOTES:

1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150°C.

3. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.

RECOMMENDED OPERATING CONDITIONS

SYMBOL PARAMETER LIMITS UNIT

MIN MAX

V

CC

DC supply voltage 4.5 5.5 V

V

I

Input voltage 0 V

CC

V

IH

High-level input voltage 2.0 V

V

IL

Low-level Input voltage 0.8 V

I

OH

High-level output current –32 mA

I

OL

Low-level output current 64 mA

∆t/∆v Input transition rise or fall rate 0 10 ns/V

T

amb

Operating free-air temperature range –40 +85 °C

Philips Semiconductors Products Product specification

MB2646

Dual octal bus transceiver/registers (3-State)

August 23, 1993

6

DC ELECTRICAL CHARACTERISTICS

LIMITS

SYMBOL PARAMETER TEST CONDITIONS T

amb

= +25°C

T

amb

= –40°C

to +85°C

UNIT

MIN TYP MAX MIN MAX

V

IK

Input clamp voltage VCC = 4.5V; IIK = –18mA –0.9 –1.2 –1.2 V

VCC = 4.5V; IOH = –3mA; VI = VIL or V

IH

2.5 2.9 2.5 V

V

OH

High–level output voltage VCC = 5.0V; IOH = –3mA; VI = VIL or V

IH

3.0 3.4 3.0 V

VCC = 4.5V; IOH = –32mA; VI = VIL or V

IH

2.0 2.4 2.0 V

V

OL

Low–level output voltage VCC = 4.5V; IOL = 64mA; VI = VIL or V

IH

0.42 0.55 0.55 V

V

RST

Power-up output voltage

NO TAG

VCC = 5.5V; IO = 1mA; VI = GND or V

CC

0.13 0.55 0.55 V

I

Input leakage Control pins VCC = 5.5V; VI = GND or 5.5V ±0.01 ±1.0 ±1.0 µA current Data pins VCC = 5.5V; VI = GND or 5.5V ±5 ±100 ±100 µA

I

OFF

Power-off leakage current VCC = 0.0V; VO or VI ≤ 4.5V ±5.0 ±100 ±100 µA

I

PU/PD

Power-up/down 3-State output current

4

VCC = 2.1V; VO = 0.5V; VI = GND or VCC; V

OE

= Don’t care

±5.0 ±50 ±50 µA

IIH + I

OZH

3–State output High current VCC = 5.5V; VO = 2.7V; VI = VIL or V

IH

5.0 50 50 µA

IIL + I

OZL

3–State output Low current VCC = 5.5V; VO = 0.5V; VI = VIL or V

IH

–5.0 –50 –50 µA

I

CEX

Output High leakage current VCC = 5.5V; VO = 5.5V; VI = GND or V

CC

5.0 50 50 µA

I

O

Output current

1

VCC = 5.5V; VO = 2.5V –50 –80 –180 –50 –180 mA

I

CCH

VCC = 5.5V; Outputs High, VI = GND or V

CC

120 250 250 µA

I

CCL

Quiescent supply current VCC = 5.5V; Outputs Low, VI = GND or V

CC

37 60 60 mA

I

CCZ

VCC = 5.5V; Outputs 3–State; V

I

= GND or V

CC

120 250 250 µA

∆I

CC

Additional supply current per input pin

2

VCC = 5.5V; one input at 3.4V, other inputs at V

CC

or GND

0.5 1.5 1.5 mA

NOTES:

1. Not more than one output should be tested at a time, and the duration of the test should not exceed one second.

2. This is the increase in supply current for each input at 3.4V.

3. For valid test results, data must not be loaded into the flip-flops (or latches) after applying the power.

4. This parameter is valid for any V

CC

between 0V and 2.1V, with a transition time of up to 10msec. From VCC = 2.1V to VCC = 5V ± 10% a

transition time of up to 100µsec is permitted.

Philips Semiconductors Products Product specification

MB2646

Dual octal bus transceiver/registers (3-State)

August 23, 1993

7

AC CHARACTERISTICS

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

LIMITS

SYMBOL PARAMETER WAVEFORM

T

amb

= +25oC

V

CC

= +5.0V

T

amb

= -40 to

+85

o

C

V

CC

= +5.0V ±0.5V

UNIT

MIN TYP MAX MIN MAX

f

MAX

Maximum clock frequency 1 130 190 130 MHz

t

PLH

t

PHL

Propagation delay nCPAB to nBx or nCPBA to nAx

1

2.2

2.4

3.9

4.6

5.1

5.4

2.2

2.4

5.6

5.9

ns

t

PLH

t

PHL

Propagation delay nAx to nBx or nBx to nAx

2

1.5

3.1

3.3

4.3

4.5

1.5

4.8

5.0

ns

t

PLH

t

PHL

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

ns

t

PZH

t

PZL

Output enable time nOE

to nAx or nBx

5 6

1.5

2.1

3.5

4.4

4.8

5.6

1.5

2.1

5.6

6.4

ns

t

PHZ

t

PLZ

Output disable time nOE

to nAx or nBx

5 6

2.1

1.5

3.8

3.1

5.0

4.2

2.1

1.5

5.7

4.7

ns

t

PZH

t

PZL

Output enable time nDIR to nAx or nBx

5 6

1.5

2.3

4.2

4.9

5.4

6.2

1.5

2.3

6.2

6.9

ns

t

PHZ

t

PLZ

Output disable time nDIR to nAx or nBx

5 6

2.1

1.5

3.8

3.2

5.0

4.3

2.1

1.5

5.7

5.0

ns

AC SETUP REQUIREMENTS

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

LIMITS

SYMBOL PARAMETER WAVEFORM

T

amb

= +25oC

VCC = +5.0V

T

amb

= -40 to +85oC

VCC = +5.0V ±0.5V

UNIT

MIN TYP MIN

ts(H) t

s

(L)

Setup time nAx to nCPAB, nBx to nCPBA

4

2.0

1.5

0.7

0.0

2.0

1.5

ns

th(H) t

h

(L)

Hold time nAx to nCPAB, nBx to nCPBA

4

1.5

1.0

0.0

–0.7

1.5

1.0

ns

tw(H) t

w

(L)

Pulse width, High or Low nCPAB or nCPBA

1

4.5

3.0

2.5

2.0

4.5

3.0

ns

Philips Semiconductors Products Product specification

MB2646

Dual octal bus transceiver/registers (3-State)

August 23, 1993

8

AC WAVEFORMS

VM = 1.5V, VIN = GND to 3.0V

V

M

nAx or nBx

V

M

V

M

V

M

V

MVM

nCPBA or

nCPAB

ts(H)

th(H)

ts(L)

th(L)

nOE, nDIR

V

M

t

PZH

t

PHZ

0V

V

OH

–0.3V

t

PZL

t

PLZ

0V

V

OL

+0.3V

V

M

V

M

V

M

V

M

V

M

NOTE: The shaded areas indicate when the input is permitted to change for predictable output performance.

nSBA or nSAB

V

M

t

PLH

t

PHL

V

M

V

M

V

M

nAx or nBx

V

M

t

PHL

t

PLH

V

M

V

M

V

M

nSBA or

nSAB

nAx or nBx

nOE

, nDIR

nAx or nBx

nDIR

V

M

V

M

V

M

V

M

V

M

1/f

MAX

tw(H) tw(L)

t

PHL

t

PLH

nCPBA or

nCPAB

nAx or nBx

Waveform 1. Propagation Delay, Clock Input to Output,

Clock Pulse Width, and Maximum Clock Frequency

Waveform 2. Propagation Delay, nSAB to nBx or

nSBA to nAx, nAx to nBx or nBx to nAx

Waveform 3. Propagation Delay, nSBA to nAx or nSAB to nBx

Waveform 4. Data Setup and Hold Times

Waveform 5. 3-State Output Enable Time to High Level

and Output Disable Time from High Level

Waveform 6. 3-State Output Enable Time to Low Level

and Output Disable Time from Low Level

Philips Semiconductors Products Product specification

MB2646

Dual octal bus transceiver/registers (3-State)

August 23, 1993

9

PULSE

GENERATOR

R

T

V

IN

D.U.T

V

OUT

C

L

R

L

V

CC

R

L

7.0V

Test Circuit for 3-State Outputs

V

M

V

M

t

W

AMP (V)

NEGATIVE PULSE

10% 10%

90%

0V

V

M

V

M

t

W

AMP (V)

POSITIVE PULSE

90% 90%

10%

0V

t

THL

(tF)

t

TLH

(tR) t

THL

(tF)

t

TLH

(tR)

VM = 1.5V

Input Pulse Definition

DEFINITIONS

RL = Load resistor; see AC CHARACTERISTICS for value. C

L

= Load capacitance includes jig and probe capacitance;

see AC CHARACTERISTICS for value.

R

T

= Termination resistance should be equal to Z

OUT

of

pulse generators.

INPUT PULSE REQUIREMENTS

FAMILY

Amplitude Rep. Rate t

W

t

R

t

F

MB 3.0V 1MHz 500ns 2.5ns 2.5ns

SWITCH POSITION

TEST SWITCH

t

PLZ

closed

t

PZL

closed

All other open

Philips Semiconductors Products Product specification

MB2646

Dual octal bus transceiver/registers (3-State)

August 23, 1993

10

Adjustment of t

PHL

for

Load Capacitance and # of Outputs Switching

nCPAB to nBx or nCPBA to nAx

t

PLH

vs Temperature (T

amb

)

C

L

= 50pF, 1 Output Switching

nCPAB to nBx or nCPBA to nAx

°C

MAX

4.5V

CC

5.5V

CC

MIN

ns

Offset in ns

Adjustment of t

PLH

for

Load Capacitance and # of Outputs Switching

nCPAB to nBx or nCPBA to nAx

pF

ns

Offset in ns

t

PHL

vs Temperature (T

amb

)

C

L

= 50pF, 1 Output Switching

nCPAB to nBx or nCPBA to nAx

°C

MAX

4.5V

CC

5.5V

CC

MIN

pF

16 switching 8 switching

1 switching

ns

Offset in ns

t

PLH

vs Temperature (T

amb

)

C

L

= 50pF, 1 Output Switching

nAx to nBx or nBx to nAx

°C

MAX

4.5V

CC

5.5V

CC

MIN

Adjustment of t

PLH

for

Load Capacitance and # of Outputs Switching

nAx to nBx or nBx to nAx

pF

16 switching 8 switching

1 switching

16 switching 8 switching

1 switching

7

6

5

4

3

2

1

–55 –35 –15 5 25 45 65 85 105 125

7

6

5

4

3

2

1

–55 –35 –15 5 25 45 65 85 105 125

5

4

3

2

1

0

–1

–2

0 50 100 150 200

5

4

3

2

1

0

–1

–2

0 50 100 150 200

6

5

4

3

2

1

0

–55 –35 –15 5 25 45 65 85 105 125

5

4

3

2

1

0

–1

–2

0 50 100 150 200

Philips Semiconductors Products Product specification

MB2646

Dual octal bus transceiver/registers (3-State)

August 23, 1993

11

t

PHL

vs Temperature (T

amb

)

C

L

= 50pF, 1 Output Switching

nAx to nBx or nBx to nAx

°C

MAX

4.5V

CC

5.5V

CC

MIN

ns

Offset in ns

Adjustment of t

PHL

for

Load Capacitance and # of Outputs Switching

nAx to nBx or nBx to nAx

pF

16 switching 8 switching

1 switching

ns

Offset in ns

t

PLH

vs Temperature (T

amb

)

C

L

= 50pF, 1 Output Switching

nSAB to nBx or nSBA to nAx

°C

MAX

4.5V

CC

5.5V

CC

MIN

Adjustment of t

PLH

for

Load Capacitance and # of Outputs Switching

nSAB to nBx or nSBA to nAx

pF

16 switching 8 switching

1 switching

ns

Offset in ns

t

PHL

vs Temperature (T

amb

)

C

L

= 50pF, 1 Output Switching

nSAB to nBx or nSBA to nAx

°C

MAX

4.5V

CC

5.5V

CC

MIN

Adjustment of t

PHL

for

Load Capacitance and # of Outputs Switching

nSAB to nBx or nSBA to nAx

pF

16 switching 8 switching

1 switching

6

5

4

3

2

1

0

–55 –35 –15 5 25 45 65 85 105 125

7

6

5

4

3

2

1

0

–55 –35 –15 5 25 45 65 85 105 125

5

4

3

2

1

0

–1

–2

0 50 100 150 200

4

3

2

1

0

–1

–2

0 50 100 150 200

7

6

5

4

3

2

1

–55 –35 –15 5 25 45 65 85 105 125

0 50 100 150 200

5

4

3

2

1

0

–1

–2

Philips Semiconductors Products Product specification

MB2646

Dual octal bus transceiver/registers (3-State)

August 23, 1993

12

t

PZH

vs Temperature (T

amb

)

C

L

= 50pF, 1 Output Switching

nOE

to nAx or nBx

°C

MAX

4.5V

CC

5.5V

CC

MIN

ns

Offset in ns

Adjustment of t

PZH

for

Load Capacitance and # of Outputs Switching

nOE

to nAx or nBx

pF

16 switching 8 switching

1 switching

ns

Offset in ns

t

PZL

vs Temperature (T

amb

)

C

L

= 50pF, 1 Output Switching

nOE

to nAx or nBx

°C

MAX

4.5V

CC

5.5V

CC

MIN

Adjustment of t

PZL

for

Load Capacitance and # of Outputs Switching

nOE

to nAx or nBx

pF

16 switching 8 switching

1 switching

ns

Offset in ns

t

PHZ

vs Temperature (T

amb

)

C

L

= 50pF, 1 Output Switching

nOE

to nAx or nBx

°C

MAX

4.5V

CC

5.5V

CC

MIN

Adjustment of t

PHZ

for

Load Capacitance and # of Outputs Switching

nOE

to nAx or nBx

pF

16 switching 8 switching 1 switching

8

7

6

5

4

3

2

1

0

–55 –35 –15 5 25 45 65 85 105 125

8

7

6

5

4

3

2

1

–55 –35 –15 5 25 45 65 85 105 125

5

4

3

2

1

0

–1

–2

0 50 100 150 200

5

4

3

2

1

0

–1

–2

0 50 100 150 200

7

6

5

4

3

2

1

0

–55 –35 –15 5 25 45 65 85 105 125

10

8

6

4

2

0

–2

–4

0 50 100 150 200

Philips Semiconductors Products Product specification

MB2646

Dual octal bus transceiver/registers (3-State)

August 23, 1993

13

t

PZH

vs Temperature (T

amb

)

C

L

= 50pF, 1 Output Switching

nOE

to nAx or nBx

°C

MAX

4.5V

CC

5.5V

CC

MIN

ns

Offset in ns

Adjustment of t

PZH

for

Load Capacitance and # of Outputs Switching

nOE

to nAx or nBx

pF

16 switching 8 switching

1 switching

ns

Offset in ns

t

PZL

vs Temperature (T

amb

)

C

L

= 50pF, 1 Output Switching

nOE

to nAx or nBx

°C

MAX

4.5V

CC

5.5V

CC

MIN

Adjustment of t

PZL

for

Load Capacitance and # of Outputs Switching

nOE

to nAx or nBx

pF

16 switching 8 switching

1 switching

ns

Offset in ns

t

PHZ

vs Temperature (T

amb

)

C

L

= 50pF, 1 Output Switching

nOE

to nAx or nBx

°C

MAX

4.5V

CC

5.5V

CC

MIN

Adjustment of t

PHZ

for

Load Capacitance and # of Outputs Switching

nOE

to nAx or nBx

pF

16 switching 8 switching 1 switching

8

7

6

5

4

3

2

1

0

–55 –35 –15 5 25 45 65 85 105 125

8

7

6

5

4

3

2

1

–55 –35 –15 5 25 45 65 85 105 125

5

4

3

2

1

0

–1

–2

0 50 100 150 200

5

4

3

2

1

0

–1

–2

0 50 100 150 200

7

6

5

4

3

2

1

0

–55 –35 –15 5 25 45 65 85 105 125

10

8

6

4

2

0

–2

–4

0 50 100 150 200

Philips Semiconductors Products Product specification

MB2646

Dual octal bus transceiver/registers (3-State)

August 23, 1993

14

t

PLZ

vs Temperature (T

amb

)

C

L

= 50pF, 1 Output Switching

nOE

to nAx or nBx

°C

MAX

4.5V

CC

5.5V

CC

MIN

ns

Offset in ns

Adjustment of t

PLZ

for

Load Capacitance and # of Outputs Switching

nOE

to nAx or nBx

pF

16 switching 8 switching 1 switching

ns

Offset in ns

t

PZH

vs Temperature (T

amb

)

C

L

= 50pF, 1 Output Switching

nDIR to nAx or nBx

°C

MAX

4.5V

CC

5.5V

CC

MIN

Adjustment of t

PZH

for

Load Capacitance and # of Outputs Switching

nDIR to nAx or nBx

pF

16 switching 8 switching

1 switching

ns

Offset in ns

t

PZL

vs Temperature (T

amb

)

C

L

= 50pF, 1 Output Switching

nDIR to nAx or nBx

°C

MAX

4.5V

CC

5.5V

CC

MIN

Adjustment of t

PZL

for

Load Capacitance and # of Outputs Switching

nDIR to nAx or nBx

pF

16 switching 8 switching

1 switching

6

5

4

3

2

1

0

–55 –35 –15 5 25 45 65 85 105 125

8

7

6

5

4

3

2

1

0

–55 –35 –15 5 25 45 65 85 105 125

6

5

4

3

2

1

0

–1

–2

0 50 100 150 200

5

4

3

2

1

0

–1

–2

0 50 100 150 200

8

7

6

5

4

3

2

1

–55 –35 –15 5 25 45 65 85 105 125

5

4

3

2

1

0

–1

–2

0 50 100 150 200

Philips Semiconductors Products Product specification

MB2646

Dual octal bus transceiver/registers (3-State)

August 23, 1993

15

t

PHZ

vs Temperature (T

amb

)

C

L

= 50pF, 1 Output Switching

nDIR to nAx or nBx

°C

MAX

4.5V

CC

5.5V

CC

MIN

ns

Offset in ns

Adjustment of t

PHZ

for

Load Capacitance and # of Outputs Switching

nDIR to nAx or nBx

pF

16 switching 8 switching 1 switching

ns

Offset in ns

t

PLZ

vs Temperature (T

amb

)

C

L

= 50pF, 1 Output Switching

nDIR to nAx or nBx

°C

MAX

4.5V

CC

5.5V

CC

MIN

Adjustment of t

PLZ

for

Load Capacitance and # of Outputs Switching

nDIR to nAx or nBx

pF

16 switching 8 switching

1 switching

ns

Offset in ns

t

TLH

vs Temperature (T

amb

)

C

L

= 50pF, 1 Output Switching

°C

4.5V

CC

5.5V

CC

Adjustment of t

TLH

for

Load Capacitance and # of Outputs Switching

pF

16 switching 8 switching 1 switching

7

6

5

4

3

2

1

–55 –35 –15 5 25 45 65 85 105 125

6

5

4

3

2

1

0

–55 –35 –15 5 25 45 65 85 105 125

10

8

6

4

2

0

–2

–4

0 50 100 150 200

6

5

4

3

2

1

0

–1

–2

0 50 100 150 200

4

3

2

1

0

–55 –35 –15 5 25 45 65 85 105 125

9

7

5

3

1

–1

–3

0 50 100 150 200

Philips Semiconductors Products Product specification

MB2646

Dual octal bus transceiver/registers (3-State)

August 23, 1993

16

ns

Offset in ns

t

THL

vs Temperature (T

amb

)

C

L

= 50pF, 1 Output Switching

°C

4.5V

CC

5.5V

CC

Adjustment of t

THL

for

Load Capacitance and # of Outputs Switching

pF

20 switching 10 switching

1 switching

Volts

V

OHV

and V

OLP

vs Load Capacitance

V

CC

= 5V, VIN = 0 to 3V

pF

125°C 25°C –55°C

V

OHP

and V

OLV

vs Load Capacitance

V

CC

= 5V, VIN = 0 to 3V

pF

125°C 25°C –55°C

4

3

2

1

0

–55 –35 –15 5 25 45 65 85 105 125

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0

0 50 100 150 200

5

4

3

2

1

0

–1

–2

0 50 100 150 200

6 5 4 3 2 1

0 –1 –2 –3

0 50 100 150 200

Datasheet mb2646 DATASHEETS (Philips)

Product specification MB2646 Dual octal bus transceiver/registers (3-State) 1 August 23, 1993 853-1617 10589

FEATURES

DESCRIPTION

QUICK REFERENCE DATA

ORDERING INFORMATION

PIN CONFIGURATION LOGIC SYMBOL

DESCRIPTION (continued)

PIN DESCRIPTION

LOGIC SYMBOL (IEEE/IEC)

LOGIC DIAGRAM

FUNCTION TABLE

ABSOLUTE MAXIMUM RATINGS

RECOMMENDED OPERATING CONDITIONS

DC ELECTRICAL CHARACTERISTICS

AC CHARACTERISTICS

AC SETUP REQUIREMENTS

AC WAVEFORMS

Product specification

MB2646

Dual octal bus transceiver/registers (3-State)

1

August 23, 1993 853-1617 10589