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MC74HC273A_15 Datasheet, PDF (1/8 Pages) ON Semiconductor – Octal D Flip-Flop with Common Clock and Reset
MC74HC273A
Octal D Flip-Flop with
Common Clock and Reset
High−Performance Silicon−Gate CMOS
The MC74HC273A is identical in pinout to the LS273. The device
inputs are compatible with standard CMOS outputs; with pullup
resistors, they are compatible with LSTTL outputs.
This device consists of eight D flip−flops with common Clock and
Reset inputs. Each flip−flop is loaded with a low−to−high transition of
the Clock input. Reset is asynchronous and active low.
Features
• Output Drive Capability: 10 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
• High Noise Immunity Characteristic of CMOS Devices
• In Compliance with the Requirements Defined by JEDEC Standard
No. 7 A
• Chip Complexity: 264 FETs or 66 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, Halogen Free and are RoHS Compliant
LOGIC DIAGRAM
DATA
INPUTS
D0 3
D1 4
D2 7
D3 8
D4 13
D5 14
D6 17
D7 18
CLOCK 11
2 Q0
5 Q1
6 Q2
9 Q3
12 Q4
15 Q5
16 Q6
19 Q7
NONINVERTING
OUTPUTS
RESET 1
PIN 20 = VCC
PIN 10 = GND
Design Criteria
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Internal Gate Count*
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Internal Gate Propagation Delay
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Internal Gate Power Dissipation
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Speed Power Product
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ *Equivalent to a two−input NAND gate.
Value
66
1.5
5.0
.0075
Units
ea
ns
mW
pJ
© Semiconductor Components Industries, LLC, 2015
1
October, 2015 − Rev. 17
www.onsemi.com
SOIC−20
DW SUFFIX
CASE 751D
TSSOP−20
DT SUFFIX
CASE 948E
PIN ASSIGNMENT
RESET 1
Q0 2
D0 3
D1 4
Q1 5
Q2 6
D2 7
D3 8
Q3 9
GND 10
20 VCC
19 Q7
18 D7
17 D6
16 Q6
15 Q5
14 D5
13 D4
12 Q4
11 CLOCK
MARKING DIAGRAMS
20
20
HC273A
AWLYYWWG
HC
273A
ALYWG
G
1
SOIC−20
1
TSSOP−20
A
= Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, W = Work Week
G or G = Pb−Free Package
(Note: Microdot may be in either location)
FUNCTION TABLE
Inputs
Output
Reset Clock D
Q
L
X
X
L
H
H
H
H
L
L
H
L
X No Change
H
X No Change
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 6 of this data sheet.
Publication Order Number:
MC74HC273A/D