Product Summary

The 74HC540 is an octal buffer and line driver. It features the performance of the popular’HC240 series and offers a pinout with inputs and outputs on opposite sides of the package. This arrangement greatly facilitates printed circuit board layout.

Parametrics

74HC540 absolute maximum ratings: (1)Supply voltage range, VCC: -0.5 V to 7 V; (2)Input clamp current, IIK (VI < 0 or VI > VCC): ±20mA; (3)Output clamp current, IOK (VO < 0 or VO > VCC): ±20mA; (4)Continuous output current, IO (VO = 0 to VCC): ±35mA; (5)Continuous current through VCC or GND: ±70mA; (6)Package thermal impedance, θJA: 70℃/W; (7)Storage temperature range, Tstg: -65 to 150℃.

Features

74HC540 features: (1)Wide Operating Voltage Range of 2 V to 6 V; (2)High-Current 3-State Outputs Drive Bus Lines Directly or Up To 15 LSTTL Loads; (3)Low Power Consumption, 80-μA Max ICC; (4)Typical tpd = 8 ns; (5)±6-mA Output Drive at 5 V; (6) Low Input Current of 1μA Max; (7)Data Flow-Through Pinout (All Inputs on Opposite Side From Outputs).

Diagrams

74HC540 block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
74HC540
74HC540

Other


Data Sheet

Negotiable 
74HC540D,653
74HC540D,653

NXP Semiconductors

Buffers & Line Drivers OCTAL BUFFER/DRIVER INV 3-S

Data Sheet

0-1: $0.21
1-25: $0.16
25-100: $0.12
100-250: $0.11
74HC540DB
74HC540DB

NXP Semiconductors

Buffers & Line Drivers OCTAL BUF/DRV INV 3S

Data Sheet

Negotiable 
74HC540DB,112
74HC540DB,112

NXP Semiconductors

Buffers & Line Drivers OCTAL BUF/DRV INV 3S

Data Sheet

0-1: $0.59
1-25: $0.47
25-100: $0.42
100-250: $0.37
74HC540DB,118
74HC540DB,118

NXP Semiconductors

Buffers & Line Drivers OCTAL BUF/DRV INV 3S

Data Sheet

0-1: $0.34
1-25: $0.31
25-100: $0.29
100-250: $0.25
74HC540DTR2G
74HC540DTR2G

ON Semiconductor

Schottky (Diodes & Rectifiers) INVERTING BUFFER OCTAL 3-S

Data Sheet

0-3000: $0.10
3000-3700: $0.10
3700-6000: $0.09
6000-12000: $0.09
74HC540N,652
74HC540N,652

NXP Semiconductors

Buffers & Line Drivers OCTAL BUFF/LDRVR 3ST INVERTING

Data Sheet

0-1: $0.35
1-25: $0.26
25-100: $0.23
100-250: $0.20
74HC540D,652
74HC540D,652

NXP Semiconductors

Buffers & Line Drivers OCT BUF/DRVR INV 3ST

Data Sheet

0-1: $0.15
1-25: $0.14
25-100: $0.13
100-250: $0.12