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NXP Semiconductors Electronic Components Datasheet

74ABT544PW Datasheet

Octal latched transceiver

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74ABT544
Octal latched transceiver with dual enable; 3-state
Rev. 6 — 3 November 2011
Product data sheet
1. General description
The 74ABT544 high performance BiCMOS device combines low static and dynamic
power dissipation with high speed and high output drive.
The 74ABT544 octal latched transceiver contains two sets of D-type latches for temporary
storage of data flowing in either direction. Separate latch enable (LEAB, LEBA) and output
enable (OEAB, OEBA) inputs are provided for each register to permit independent control
of data transfer in either direction. The outputs are guaranteed to sink 64 mA.
2. Features and benefits
Combines 74ABT640 and 74ABT373 type functions in one device
8-bit octal transceiver with D-type latch
Back-to-back registers for storage
Separate controls for data flow in each direction
Live insertion and extraction permitted
Output capability: +64 mA to 32 mA
Power-up 3-state
Power-up reset
Latch-up protection exceeds 500 mA per JESD78B class II level A
ESD protection:
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-A exceeds 200 V
3. Ordering information
Table 1. Ordering information
Type number Package
Temperature range Name
Description
74ABT544D
40 C to +85 C SO24
plastic small outline package; 24 leads;
body width 7.5 mm
74ABT544DB 40 C to +85 C
SSOP24 plastic shrink small outline package; 24 leads;
body width 5.3 mm
74ABT544PW 40 C to +85 C
TSSOP24 plastic thin shrink small outline package; 24 leads;
body width 4.4 mm
Version
SOT137-1
SOT340-1
SOT355-1


NXP Semiconductors Electronic Components Datasheet

74ABT544PW Datasheet

Octal latched transceiver

No Preview Available !

NXP Semiconductors
4. Functional diagram
3 4 5 6 7 8 9 10
A0 A1 A2 A3 A4 A5 A6 A7
11 EAB
23 EBA
OEAB 13
14 LEAB
OEBA 2
1 LEBA
B0 B1 B2 B3 B4 B5 B6 B7
22 21 20 19 18 17 16 15
001aae900
Fig 1. Logic symbol
2
OEBA
EBA 23
LEBA 1
3
A0
DQ
LE
74ABT544
Octal latched transceiver with dual enable; 3-state
2
1EN3 (BA)
23
G1
1
1C5
13
2EN4 (AB)
11
G2
14
2C6
3
3
4
6D
5
6
7
8
9
10
22
5D
2
21
20
19
18
17
16
15
001aae901
Fig 2. IEC logic symbol
DETAIL A
QD
LE
13
OEAB
11 EAB
14
LEAB
22 B0
A1 4
A2 5
6
A3
7
A4
A5 8
9
A6
10
A7
Fig 3. Logic diagram
DETAIL A × 7
21 B1
20 B2
19
B3
18
B4
17 B5
16
B6
15
B7
001aac758
74ABT544
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 6 — 3 November 2011
© NXP B.V. 2011. All rights reserved.
2 of 16


Part Number 74ABT544PW
Description Octal latched transceiver
Maker NXP
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74ABT544PW Datasheet PDF






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