74ABT16899 查看數據表（PDF） - Philips Electronics
零件编号
产品描述 (功能)
比赛名单
74ABT16899
Philips Electronics
74ABT16899 Datasheet PDF : 16 Pages
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Philips Semiconductors
18-bit latched transceiver with 16-bit
parity generator/checker (3-State)
Product specification
74ABT16899
74ABTH16899
LOGIC SYMBOL
3 5 6 7 8 10 11 12 13
27 25 24 23 22 20 19 18 17
1A0 1A1 1A2 1A3 1A4 1A5 1A6 1A7 1APAR
55
LEA
28
LEB
56
SEL
1
ODD/EVEN
2
OEA
1ERRA
14
1ERRB
43
29
OEB
1B0 1B1 1B2 1B3 1B4 1B5 1B6 1B7 1BPAR
2A0 2A1 2A2 2A3 2A4 2A5 2A6 2A7 2APAR
55
LEA
28
LEB
56
SEL
1
ODD/EVEN
2
OEA
2ERRA
16
2ERRB
41
29
OEB
2B0 2B1 2B2 2B3 2B4 2B5 2B6 2B7 2BPAR
54 52 51 50 49 47 46 45 44
30 32 33 34 35 37 38 39 40
SH00083
PARITY AND ERROR FUNCTION TABLE
INPUTS
SEL
ODD/EVEN
xPAR Σ of High xPAR
(A or B) Inputs (B or A)
H
H
H
Even
Odd
H
H
H
H
L
Even
Odd
L
L
H
L
H
Even
Odd
H
H
H
L
L
Even
Odd
L
L
L
H
H
Even
Odd
H
L
L
H
L
Even
Odd
H
L
L
L
H
Even
Odd
L
H
L
L
L
Even
Odd
L
H
H = High voltage level
L = Low voltage level
t = Transmit–if the data path is from A→B then ERRt is ERRA
r = Receive–if the data path is from A→B then ERRr is ERRB
* Blocked if latch is not transparent
OUTPUTS
ERRt
H
L
L
H
L
H
H
L
H
L
L
H
L
H
H
L
ERRr*
H
L
L
H
L
H
H
L
H
H
H
H
H
H
H
H
Odd
Mode
Even
Mode
PARITY MODES
Feed-through/check parity
Odd
Mode
Even
Mode
Generate parity
1998 Feb 25
4
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