MC74HC574A_14 Datasheet, PDF (1/9 Pages) ON Semiconductor – Octal 3-State Noninverting D Flip-Flop

MC74HC574A
Octal 3-State Noninverting
D Flip-Flop
High−Performance Silicon−Gate CMOS
The MC74HC574A is identical in pinout to the LS574. The device
inputs are compatible with standard CMOS outputs; with pull−up
resistors, they are compatible with LSTTL outputs.
Data meeting the set−up time is clocked to the outputs with the
rising edge of the Clock. The Output Enable input does not affect the
states of the flip−flops but when Output Enable is high, all device
outputs are forced to the high−impedance state. Thus, data may be
stored even when the outputs are not enabled.
The HC574A is identical in function to the HC374A but has the
flip−flop inputs on the opposite side of the package from the outputs to
facilitate PC board layout.
Features
• Output Drive Capability: 15 LSTTL Loads
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 2.0 to 6.0 V
• Low Input Current: 1.0 mA
• In Compliance with the Requirements Defined by JEDEC Standard
No. 7 A
• Chip Complexity: 266 FETs or 66.5 Equivalent Gates
• NLV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AEC−Q100
Qualified and PPAP Capable
• These Devices are Pb−Free and are RoHS Compliant
DATA
INPUTS
D0 ²
D1 ³
D2 ⁴
D3 ⁵
D4 ⁶
D5 ⁷
D6 ⁸
D7 ⁹
CLOCK ¹¹
OUTPUT ENABLE ¹
19 _Q0
18 _Q1
17 _Q2
16 _Q3
15 _Q4
14 _Q5
13 _Q6
12 _Q7
NONINVERTING
OUTPUTS
PIN 20 = V_CC
PIN 10 = GND
Figure 1. Logic Diagram
© Semiconductor Components Industries, LLC, 2014
1
August, 2014 − Rev. 15
http://onsemi.com
SOIC−20
DW SUFFIX
CASE 751D
TSSOP−20
DT SUFFIX
CASE 948E
SOEIAJ−20
F SUFFIX
CASE 967
PIN ASSIGNMENT
OUTPUT
ENABLE 1
D0 2
D1 3
D2 4
D3 5
D4 6
D5 7
D6 8
D7 9
GND 10
20
V_CC
19 Q0
18 Q1
17 Q2
16 Q3
15 Q4
14 Q5
13 Q6
12 Q7
11 CLOCK
MARKING DIAGRAMS
20
HC574A
AWLYYWWG
20
HC
574A
ALYWG
G
20
74HC574A
AWLYWWG
1
SOIC−20
1
1
TSSOP−20
SOEIAJ−20
A
WL, L
YY, Y
WW, W
G or G
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
(Note: Microdot may be in either location)
FUNCTION TABLE
Inputs
Output
OE Clock D
Q
L
L
L
L,H,
H
X
H
H
L
L
X No Change
X
Z
X = Don’t Care
Z = High Impedance
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 6 of this data sheet.
Publication Order Number:
MC74HC574A/D