Nexperia

74HC166; 74HCT166

8-bit parallel-in/serial out shift register

25 °C

-40 °C to +85 °C -40 °C to +125 °C

Symbol Parameter

Conditions

Min Typ Max

Min

Max

Min

Max

Unit

VI = VIH or VIL

IO = -20 μA; VCC = 2.0 V

1.9

2.0

-

1.9

-

1.9

-

V

IO = -20 μA; VCC = 4.5 V

4.4

4.5

-

4.4

-

4.4

-

V

IO = -20 μA; VCC = 6.0 V

5.9

6.0

-

5.9

-

5.9

-

V

IO = -4.0 mA; VCC = 4.5 V 3.98 4.32

-

3.84

-

3.7

-

V

VOH

HIGH-level

output voltage

IO = -5.2 mA; VCC = 6.0 V 5.48 5.81

-

5.34

-

5.2

-

V

VI = VIH or VIL

IO = 20 μA; VCC = 2.0 V

-

0

0.1

-

0.1

-

0.1

V

IO = 20 μA; VCC = 4.5 V

-

0

0.1

-

0.1

-

0.1

V

IO = 20 μA; VCC = 6.0 V

-

0

0.1

-

0.1

-

0.1

V

IO = 4.0 mA; VCC = 4.5 V

-

0.15 0.26

-

0.33

-

0.4

V

VOL

LOW-level

output voltage

IO = 5.2 mA; VCC = 6.0 V

-

0.16 0.26

-

0.33

-

0.4

V

II

input leakage

current

VI = VCC or GND; VCC = 6.0 V

-

-

±0.1

-

±1

-

±1

μA

ICC

supply current VI = VCC or GND; IO = 0 A;

VCC = 6.0 V

-

-

8.0

-

80

-

160

μA

CI

input

capacitance

-

3.5

-

-

-

-

-

pF

74HCT166

VIH

HIGH-level

input voltage

VCC = 4.5 V to 5.5 V

2.0

1.6

-

2.0

-

2.0

-

V

VIL

LOW-level

input voltage

VCC = 4.5 V to 5.5 V

-

1.2

0.8

-

0.8

-

0.8

V

VI = VIH or VIL; VCC = 4.5 V

IO = -20 μA

4.4

4.5

-

4.4

-

4.4

-

V

VOH

HIGH-level

output voltage

IO = -4.0 mA

3.98 4.32

-

3.84

-

3.7

-

V

VI = VIH or VIL; VCC = 4.5 V

IO = 20 μA; VCC = 4.5 V

-

0

0.1

-

0.1

-

0.1

V

VOL

LOW-level

output voltage

IO = 5.2 mA; VCC = 4.5 V

-

0.16 0.26

-

0.33

-

0.4

V

II

input leakage

current

VI = VCC or GND; VCC = 4.5 V

-

-

±0.1

-

±1

-

±1

μA

ICC

supply current VI = VCC or GND; IO = 0 A;

VCC = 4.5 V

-

-

8.0

-

80

-

160

μA

per input pin;

VI = VCC - 2.1 V;

other inputs at VCC or GND;

VCC = 4.5 V to 5.5 V

Dn and DS inputs

-

35

126

-

157.5

-

171.5 μA

CP and CE inputs

-

80

288

-

360

-

392

μA

MR input

-

40

144

-

180

-

196

μA

ΔICC

additional

supply current

PE input

-

60

216

-

270

-

294

μA

CI

input

capacitance

-

3.5

-

-

-

-

-

pF

74HC_HCT166

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© Nexperia B.V. 2021. All rights reserved

Product data sheet

Rev. 5 — 9 August 2021

7 / 17