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74ABT574A Datasheet

Octal D-type flip-flop

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74ABT574A
Octal D-type flip-flop; 3-state
Rev. 2 — 23 November 2012
Product data sheet
1. General description
The 74ABT574A high-performance BiCMOS device combines low static and dynamic
power dissipation with high speed and high output drive.
The 74ABT574A is an 8-bit, edge triggered register coupled to eight 3-State output
buffers. The clock input (CP) and output enable input (OE) control gates, control the two
sections of the device independently. The state of each data input (Dn, one set-up time
before the Low-to-High clock transition) is transferred to the Q output of the corresponding
flip-flop.
When OE is Low, the stored data appears at the outputs. When OE is High, the outputs
are in the High-impedance “off” state, which means they do not drive or load the bus.
The 3-State output buffers are designed to drive heavily loaded 3-State buses, MOS
memories, or MOS microprocessors. The active-Low Output Enable (OE) controls all
eight 3-State buffers independent of the clock operation.
2. Features and benefits
74ABT574A is flow-through pinout version of 74ABT374A
Inputs and outputs on opposite side of package allow easy
interface to microprocessors
3-State outputs for bus interfacing
Power-on 3-state
Power-on reset
Common output enable
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
Live insertion/extraction permitted.


NXP Semiconductors Electronic Components Datasheet

74ABT574A Datasheet

Octal D-type flip-flop

No Preview Available !

NXP Semiconductors
74ABT574A
Octal D-type flip-flop; 3-state
3. Ordering information
Table 1. Ordering information
Type number Package
Temperature range Name
74ABT574AN 40 C to +85 C DIP20
74ABT574AD 40 C to +85 C SO20
74ABT574ADB 40 C to +85 C SSOP20
74ABT574APW 40 C to +85 C TSSOP20
Description
plastic dual in-line package; 20 leads (300 mil)
plastic small outline package; 20 leads;
body width 7.5 mm
plastic shrink small outline package; 20 leads;
body width 5.3 mm
plastic thin shrink small outline package; 20 leads;
body width 4.4 mm
4. Functional diagram
Version
SOT146-1
SOT163-1
SOT339-1
SOT360-1
11
CP
2 D0
Q0 19
3 D1
Q1 18
4 D2
Q2 17
5 D3
Q3 16
6 D4
15
Q4
7 D5
14
Q5
8
D6
13
Q6
9 D7
12
Q7
OE
1 mna798
Fig 1. Logic symbol
D0 D1 D2
11
C1
1 EN
2 1D
3
4
5
6
7
8
9
19
18
17
16
15
14
13
12
mna446
Fig 2. IEC logic symbol
D3 D4 D5 D6 D7
DQ
CP
DQ
CP
DQ
CP
DQ
CP
DQ
CP
DQ
CP
DQ
CP
DQ
CP
FF1 FF2 FF3 FF4 FF5 FF6 FF7 FF8
CP
OE
Q0
Fig 3. Logic diagram
74ABT574A
Product data sheet
Q1 Q2 Q3 Q4 Q5
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 23 November 2012
Q6 Q7
001aah077
© NXP B.V. 2012. All rights reserved.
2 of 16


Part Number 74ABT574A
Description Octal D-type flip-flop
Maker NXP
Total Page 16 Pages
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