Bipolar transistors

Diodes

ESD protection, TVS, filtering and signal conditioning

MOSFETs

SiC MOSFETs

GaN FETs

IGBTs

Analog & Logic ICs

Automotive qualified products (AEC-Q100/Q101)

74HC7540; 74HCT7540

Octal Schmitt trigger buffer/line driver; 3-state; inverting

The 74HC7540; 74HCT7540 is an 8-bit inverting buffer/line driver with Schmitt-trigger inputs and 3-state outputs. The device features two output enables (OE1 and OE2). A HIGH on OEn causes the outputs to assume a high-impedance OFF-state. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC. Schmitt trigger inputs transform slowly changing input signals into sharply defined jitter-free output signals.

Features and benefits

  • Wide supply voltage range from 2.0 to 6.0 V

  • CMOS low power dissipation

  • High noise immunity

  • Unlimited input rise and fall times

  • Latch-up performance exceeds 100 mA per JESD 78 Class II Level B

  • Inverting outputs

  • Input levels:

    • For 74HC7540: CMOS level

    • For 74HCT7540: TTL level

  • Complies with JEDEC standards

    • JESD8C (2.7 V to 3.6 V)

    • JESD7A (2.0 V to 6.0 V)

  • ESD protection:

    • HBM JESD22-A114F exceeds 2000 V

    • MM JESD22-A115-A exceeds 200 V

  • Specified from -40 °C to +85 °C and from -40 °C to +125 °C

Parametrics

Type number VCC (V) Logic switching levels Output drive capability (mA) fmax (MHz) Nr of bits Power dissipation considerations Tamb (°C) Package name
74HC7540D 2.0 - 6.0 CMOS ± 7.8 36 8 low -40~125 SO20
74HC7540PW 2.0 - 6.0 CMOS ± 7.8 36 8 low -40~125 TSSOP20
74HCT7540D 4.5 - 5.5 TTL ± 6 36 8 low -40~125 SO20

Package

Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
74HC7540D 74HC7540D,118
(933967860118)		 Active 74HC7540D SOT163-1
SO20
(SOT163-1) 		SOT163-1 WAVE_BG-BD-1
SOT163-1_118
74HC7540PW 74HC7540PWJ
(935691207118)		 Active 4HC7540 SOT360-1
TSSOP20
(SOT360-1) 		SOT360-1 SSOP-TSSOP-VSO-WAVE
SOT360-1_118
74HCT7540D 74HCT7540D,118
(933967900118)		 Active 74HCT7540D SOT163-1
SO20
(SOT163-1) 		SOT163-1 WAVE_BG-BD-1
SOT163-1_118

All type numbers in the table below are discontinued.

Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
74HC7540D 74HC7540D,112
(933967860112)		 Withdrawn / End-of-life 74HC7540D SOT163-1
SO20
(SOT163-1) 		SOT163-1 WAVE_BG-BD-1
Not available
74HC7540DB 74HC7540DB,112
(935190290112)		 Obsolete no package information
74HC7540DB,118
(935190290118)		 Obsolete
74HCT7540D 74HCT7540D,112
(933967900112)		 Withdrawn / End-of-life 74HCT7540D SOT163-1
SO20
(SOT163-1) 		SOT163-1 WAVE_BG-BD-1
Not available

Environmental information

Type number Orderable part number Chemical content RoHS RHF-indicator
74HC7540D 74HC7540D,118 74HC7540D rohs rhf rhf
74HC7540PW 74HC7540PWJ 74HC7540PW rohs rhf rhf
74HCT7540D 74HCT7540D,118 74HCT7540D rohs rhf rhf

All type numbers in the table below are discontinued.

Type number Orderable part number Chemical content RoHS RHF-indicator
74HC7540D 74HC7540D,112 74HC7540D rohs rhf rhf
74HC7540DB 74HC7540DB,112 74HC7540DB rohs rhf rhf
74HC7540DB 74HC7540DB,118 74HC7540DB rohs rhf rhf
74HCT7540D 74HCT7540D,112 74HCT7540D rohs rhf rhf
Quality and reliability disclaimer

Documentation (9)

File name Title Type Date
74HC_HCT7540 Octal Schmitt trigger buffer/line driver; 3-state; inverting Data sheet 2023-11-09
SOT163-1 3D model for products with SOT163-1 package Design support 2020-01-22
SOT360-1 3D model for products with SOT360-1 package Design support 2020-01-22
Nexperia_package_poster Nexperia package poster Leaflet 2020-05-15
TSSOP20_SOT360-1_mk plastic, thin shrink small outline package; 20 leads; 0.65 mm pitch; 6.5 mm x 4.4 mm x 1.1 mm body Marcom graphics 2017-01-28
SOT163-1 plastic, small outline package; 20 leads; 1.27 mm pitch; 12.8 mm x 7.5 mm x 2.65 mm body Package information 2022-06-20
SOT360-1 plastic, thin shrink small outline package; 20 leads; 0.65 mm pitch; 6.5 mm x 4.4 mm x 1.1 mm body Package information 2022-06-21
WAVE_BG-BD-1 Wave soldering profile Wave soldering 2021-09-08
SSOP-TSSOP-VSO-WAVE Footprint for wave soldering Wave soldering 2009-10-08

Support

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Models

File name Title Type Date
SOT163-1 3D model for products with SOT163-1 package Design support 2020-01-22
SOT360-1 3D model for products with SOT360-1 package Design support 2020-01-22

Ordering, pricing & availability

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