Nexperia

74HC273; 74HCT273

Octal D-type flip-flop with reset; positive-edge trigger

6. Functional description

Table 3. Function table

H = HIGH voltage level; h = HIGH voltage level one set-up time prior to the LOW-to-HIGH clock transition;

L = LOW voltage level; l = LOW voltage level one set-up time prior to the LOW-to-HIGH clock transition;

X = don’t care; ↑ = LOW-to-HIGH clock transition.

Inputs

Outputs

Operating modes

MR

CP

Dn

Qn

reset (clear)

L

X

X

L

load "1"

H

↑

h

H

load "0"

H

↑

l

L

7. Limiting values

Table 4. Limiting values

In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V)

Symbol

Parameter

Conditions

Min

Max

Unit

VCC

supply voltage

-0.5

+7

V

IIK

input clamping current

VI < -0.5 V or VI > VCC + 0.5 V

[1]

-

±20

mA

IOK

output clamping current

VO < -0.5 V or VO > VCC + 0.5 V

[1]

-

±20

mA

IO

output current

-0.5 V < VO < VCC + 0.5 V

-

±25

mA

ICC

supply current

-

50

mA

IGND

ground current

-50

-

mA

Tstg

storage temperature

-65

+150

°C

Ptot

total power dissipation

Tamb = -40 °C to +125 °C

[2]

-

500

mW

[1] The input and output voltage ratings may be exceeded if the input and output current ratings are observed.

[2] For SOT163-1 (SO20) package: Ptot derates linearly with 12.3 mW/K above 109 °C.

For SOT360-1 (TSSOP20) package: Ptot derates linearly with 10.0 mW/K above 100 °C.

For SOT764-1 (DHVQFN20) package: Ptot derates linearly with 12.9 mW/K above 111 °C.

8. Recommended operating conditions

Table 5. Recommended operating conditions

Voltages are referenced to GND (ground = 0 V)

74HC273

74HCT273

Symbol Parameter

Conditions

Min

Typ

Max

Min

Typ

Max

Unit

VCC

supply voltage

2.0

5.0

6.0

4.5

5.0

5.5

V

VI

input voltage

0

-

VCC

0

-

VCC V

VO

output voltage

0

-

VCC

0

-

VCC V

Tamb

ambient temperature

-40

-

+125

-40

-

+125 °C

VCC = 2.0 V

-

-

625

-

-

-

ns/V

VCC = 4.5 V

-

1.67

139

-

1.67

139 ns/V

Δt/ΔV

input transition rise and fall rate

VCC = 6.0 V

-

-

83

-

-

-

ns/V

74HC_HCT273

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© Nexperia B.V. 2021. All rights reserved

Product data sheet

Rev. 7 — 6 September 2021

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