Philips Semiconductors

Product specification

FB2041

7-bit Futurebus+ transceiver

1995 May 25

4

PIN DESCRIPTION

SYMBOL

PIN NUMBER

TYPE

NAME AND FUNCTION

AI0 – AI6

51, 2, 3, 8, 9, 14, 18

Input

Data inputs (TTL)

AO0 – AO6

50, 52, 4, 6, 10, 12, 16

Output

3-state outputs (TTL)

B0 – B6

40, 38, 36, 34, 32, 30, 28

I/O

Data inputs/Open Collector outputs, High current drive (BTL)

OEB0

46

Input

Enables the Bn outputs when High

OEB1

45

Input

Enables the B0 output when Low

OEB2

25

Input

Enables the B1 – B3 outputs when Low

OEB3

26

Input

Enables the B4 – B6 outputs when Low

OEA1

47

Input

Enables the A0 outputs when High

OEA2

20

Input

Enables the A1 – A3 outputs when High

OEA3

24

Input

Enables the A4 – A6 outputs when High

BUS GND

41, 39, 37, 35, 33, 31, 29, 27

GND

Bus ground (0V)

LOGIC GND

1, 5, 7, 11, 13, 15, 19

GND

Logic ground (0V)

23, 43

Power

Positive supply voltage

17, 49

Power

Positive supply voltage

BIAS V

48

Power

Positive supply voltage

TMS

42

Input

Test Mode Select (no-connect)

TCK

44

Input

Test Clock (no-connect)

TDI

22

Input

Test Data In (shorted to TDO)

TDO

21

Output

Test Data Out (TDI)

ABSOLUTE MAXIMUM RATINGS

Operation beyond the limits set forth in this table may impair the useful life of the device. Unless otherwise noted these limits are over the

operating free-air temperature range.

SYMBOL

PARAMETER

RATING

UNIT

Supply voltage

-0.5 to +7.0

V

Input voltage

AI0 – AI6, OEB0, OEBn, OEAn

-1.2 to +7.0

V

In ut voltage

B0 – B6

-1.2 to +5.5

Input current

-18 to +5.0

mA

Voltage applied to output in High output state

V

Current applied to output in

AO0 – AO6

48

mA

Low output state

B0 – B6

200

Storage temperature

-65 to +150

°C

RECOMMENDED OPERATING CONDITIONS

SYMBOL

PARAMETER

COMMERCIAL LIMITS

INDUSTRIAL LIMITS

UNIT

MIN

TYP

MAX

MIN

TYP

MAX

Supply voltage

4.5

5.0

5.5

4.5

5.0

5.5

V

High-level input voltage

Except B0–B6

2.0

2.0

V

High-level in ut voltage

B0 – B6

1.62

1.55

1.62

1.55

Low-level input voltage

Except B0–B6

0.8

0.8

V

Low-level in ut voltage

B0 – B6

1.47

1.47

Input clamp current

-18

-18

mA

High-level output current

AO0 – AO6

-3

-3

mA

Low-level output current

AO0 – AO6

24

24

mA

Low-level out ut current

B0 – B6

100

100

Output capacitance on B port

6

7

6

7

pF

Operating free-air temperature range

0

+70

-40

+85

°C