Nexperia

74HC1G66; 74HCT1G66

Single-pole single-throw analog switch

4. Marking

Table 2. Marking codes

Type number

Marking

74HC1G66GW

HL

74HCT1G66GW

TL

74HC1G66GV

H66

74HCT1G66GV

T66

5. Functional diagram

001aag487

E

Z

Y

Fig. 1. Logic symbol

001aah372

E

Y

Z

Fig. 2. Logic diagram

6. Pinning information

6.1. Pinning

74HC1G66

74HCT1G66

Y

VCC

Z

GND

E

001aaf185

1

2

3

5

4

Fig. 3. Pin configuration SOT353-1 (TSSOP5) and SOT753 (SC-74A)

6.2. Pin description

Table 3. Pin description

Symbol

Pin

Description

Y

1

independent input or output

Z

2

independent input or output

GND

3

ground (0 V)

E

4

enable input (active HIGH)

VCC

5

supply voltage

74HC_HCT1G66

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Product data sheet

Rev. 5 — 27 January 2022

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