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
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
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
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
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
74HC540
74HC540

Other


Data Sheet

Negotiable