74ABT657 Ver la hoja de datos (PDF) - NXP Semiconductors.
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74ABT657 Datasheet PDF : 17 Pages
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NXP Semiconductors
74ABT657
Octal transceiver with parity generator/checker; 3-state
3. Ordering information
Table 1. Ordering information
Type number Package
Temperature range Name
Description
Version
74ABT657D −40 °C to +85 °C SO24
plastic small outline package; 24 leads; body width 7.5 mm SOT137-1
74ABT657DB −40 °C to +85 °C
SSOP24 plastic shrink small outline package; 24 leads; body width SOT340-1
5.3 mm
74ABT657PW −40 °C to +85 °C
TSSOP24 plastic thin shrink small outline package; 24 leads; body
width 4.4 mm
SOT355-1
4. Functional diagram
Fig 1. Logic symbol
2 3 4 5 6 8 9 10
A0 A1 A2 A3 A4 A5 A6 A7
1 T/R
24 OE
11 ODD/EVEN
PARITY 13
ERROR 12
B0 B1 B2 B3 B4 B5 B6 B7
23 22 21 20 17 16 15 14
001aae826
Fig 2. IEC logic symbol
1
0
0 0 BUS B TO A
24
M 1 BUS A TO B
1
2 2 HIGH Z
11
G3[EVEN]
G4[ODD]
2K
=
1,3[EVEN]
13
1,4[ODD]
12
0,3[EVEN
0,4]ODD
2
0
3
23
2
22
4
21
5
20
6
17
8
16
9
15
10
14
001aae827
74ABT657_3
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 03 — 15 March 2010
© NXP B.V. 2010. All rights reserved.
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