Specification	SN74BCT540ANSR

Current - Output High, Low [custom]	64 mA
Current - Output High, Low [custom]	15 mA
Logic Type	Inverting, Buffer
Mounting Type	Surface Mount
Number of Bits per Element	8
Number of Elements	1
Operating Temperature [Max]	70 °C
Operating Temperature [Min]	0 °C
Output Type	3-State
Package / Case	20-SOIC
Package / Case	0.209 "
Package / Case	5.3 mm
Supplier Device Package	20-SO
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	4.5 V

SN74BCT540A Series

8-ch, 4.5-V to 5.5-V inverters with 3-state outputs

Part	Supplier Device Package	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Operating Temperature [Max]	Number of Bits per Element	Number of Elements	Mounting Type	Logic Type	Voltage - Supply [Min]	Voltage - Supply [Max]	Output Type	Package / Case	Package / Case [y]	Package / Case [y]	Package / Case	Package / Case
Texas Instruments SN74BCT540ADW	20-SOIC	64 mA	15 mA	70 °C	8	1	Surface Mount	Buffer Inverting	4.5 V	5.5 V	3-State	20-SOIC	0.295 in	7.5 mm
Texas Instruments SN74BCT540ADWR	20-SOIC	64 mA	15 mA	70 °C	8	1	Surface Mount	Buffer Inverting	4.5 V	5.5 V	3-State	20-SOIC	0.295 in	7.5 mm
Texas Instruments SN74BCT540ANSR	20-SO	64 mA	15 mA	70 °C	8	1	Surface Mount	Buffer Inverting	4.5 V	5.5 V	3-State	20-SOIC			0.209 "	5.3 mm

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 5.87
	Digi-Reel®	1	$ 5.87
	Tape & Reel (TR)	2000	$ 2.95
Texas Instruments	LARGE T&R	1	$ 4.64
		100	$ 3.79
		250	$ 2.98
		1000	$ 2.52

Description

General part information

SN74BCT540A Series

The SN54BCT540 and SN74BCT540A octal buffers and line drivers are ideal for driving bus lines or buffer memory-address registers. The devices feature inputs and outputs on opposite sides of the package to facilitate printed circuit board layout.

The 3-state control gate is a 2-input AND gate with active-low inputs so that if either output-enable (OE1\ or OE2\) input is high, all corresponding outputs are in the high-impedance state.

To ensure the high-impedance state during power up or power down, OE\ should be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

Documents

Technical documentation and resources

SN54BCT540, SN74BCT540A datasheet (Rev. E)

Data sheet