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74ABT16899

18-bit latched transceiver with 16-bit parity generator/checker (3-State)

Philips Electronics 

Philips Semiconductors

18-bit latched transceiver with 16-bit

parity generator/checker (3-State)

PIN CONFIGURATION

ODD/EVEN 1

OEA 2

1A0 3

GND 4

1A1 5

1A2 6

1A3 7

1A4 8

VCC 9

1A5 10

1A6 11

1A7 12

1APAR 13

1ERRA 14

GND 15

2ERRA 16

2APAR 17

2A7 18

2A6 19

2A5 20

VCC 21

2A4 22

2A3 23

2A2 24

2A1 25

GND 26

2A0 27

LEB 28

PIN DESCRIPTION

SYMBOL

1A0 - 1A7

2A0 - 2A7

1B0 - 1B7

2B0 - 2B7

1APAR

2APAR

1BPAR

2BPAR

ODD/EVEN

OEA, OEB

SEL

LEA, LEB

1ERRA, 1ERRB

2ERRA, 2ERRB

GND

VCC

1998 Feb 25

56 SEL

55 LEA

54 1B0

53 GND

52 1B1

51 1B2

50 1B3

49 1B4

48 VCC

47 1B5

46 1B6

45 1B7

44 1BPAR

43 1ERRB

42 GND

41 2ERRB

40 2BPAR

39 2B7

38 2B6

37 2B5

36 VCC

35 2B4

34 2B3

33 2B2

32 2B1

31 GND

30 2B0

29 OEB

SH00082

PIN

NUMBER

3, 5, 6, 7, 8, 10, 11, 12

27, 25, 24, 23, 22, 20, 19, 18

54, 52, 51, 50, 49, 47, 46, 45

30, 32, 33, 34, 35, 37, 38, 39

13, 17

44, 40

1

2, 29

56

55, 28

14, 43,

16, 41

4, 15, 26, 31, 42, 53

9, 21, 36, 48

3

Product specification

74ABT16899

74ABTH16899

NAME AND FUNCTION

Latched A bus 3-State inputs/outputs

Latched B bus 3-State inputs/outputs

A bus parity 3-State input

B bus parity 3-State input

Parity select input (Low for EVEN parity)

Output enable inputs (gate A to B,

B to A)

Mode select input (Low for generate)

Latch enable inputs (transparent High)

Error signal outputs (active-Low)

Ground (0V)

Positive supply voltage

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