TC74HC540AF Overview
It is used to package items using Tube.The total number of component pins equals 20.
TC74HC540AF Features

TC74HC540AF Applications
There are a lot of Toshiba
TC74HC540AF Specialty Logic ICs applications.

Cordless telephone
Desktop PC
Notebook
Pocket PC
Desktop radio
Clock radio
Tuner
Portable radio
Car radio
Satellite radio receiver

ECCN (US)	EAR99
Logic Family	HC
Number of Elements per Chip	1
Number of Channels per Chip	8
Number of Inputs per Chip	8
Number of Input Enables per Chip	0
Number of Outputs per Chip	8
Number of Output Enables per Chip	2 Low
Bus Hold	No
Maximum Propagation Delay Time @ Maximum CL (ns)	[email protected]|130@2V|22@6V
Absolute Propagation Delay Time (ns)	205
Process Technology	CMOS
Input Signal Type	Single-Ended
Maximum Low Level Output Current (mA)	7.8
Maximum High Level Output Current (mA)	-7.8
Minimum Operating Supply Voltage (V)	2
Typical Operating Supply Voltage (V)	5|3.3|2.5
Maximum Operating Supply Voltage (V)	6
Maximum Quiescent Current (uA)	4
Propagation Delay Test Condition (pF)	150
Maximum Power Dissipation (mW)	180
Minimum Operating Temperature (°C)	-40
Maximum Operating Temperature (°C)	85
Standard Package Name	SOP
Supplier Package	SOP
Mounting	Surface Mount
Package Height	1.5
Package Length	13.3(Max)
Package Width	5.3
PCB changed	20
Lead Shape	Gull-wing
Packaging	Tube
Part Status	Obsolete
Pin Count	20
Output Type	3-State
Polarity	Inverting
Logic Function	Buffer/Line Driver
RoHS Status	RoHS Compliant