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FAIRCHILD 74VCX16244 Data Handbook

Summary

The 74VCX16244 is a high-speed, low-voltage 16-bit buffer and line driver featuring sixteen non-inverting buffers with 3-STATE outputs and 3.6V tolerant inputs/outputs. Engineered for applications requiring robust signal integrity at voltages between 1.2V and 3.6V. This manual provides comprehensive details, including electrical specifications, pin descriptions (FBGA/TSSOP), and detailed operational data necessary for integrating the device into complex digital bus systems. It is ideal for electronic designers building low-power or sensitive communication circuits.

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74V 16244 L Vo ltag e 16-B it B ffer/L in e D river w ith 3.6V To leran t In ts an tp ts

October 1996 Revised June 2005

74VCX16244 Low Voltage 16-Bit Buffer/Line Driver with 3.6V Tolerant Inputs and Outputs General Description Features The VCX16244 contains sixteen non-inverting buffers with ■1.2V to 3.6V VCC supply operation 3-STATE outputs to be employed as a memory and

■3.6V tolerant inputs and outputs

address driver, clock driver, or bus oriented transmitter/

receiver. The device is nibble (4-bit) controlled. Each nibble has separate 3-STATE control inputs which can be shorted 2.5 ns max for 3.0V to 3.6V VCC together for full 16-bit operation.

■Power-off high impedance inputs and outputs

The 74VCX16244 is designed for low voltage (1.2V to

■Supports live insertion and withdrawal (Note 1)

3.6V) VCC applications with I/O capability up to 3.6V.

■Static Drive (IOH/IOL)

The 74VCX16244 is fabricated with an advanced CMOS

r24 m A @ 3.0V VCC

technology to achieve high speed operation while maintain- ing low CMOS power dissipation. ■Uses proprietary noise/EMI reduction circuitry

■Latch-up performance exceeds 300 m A ■ESD performance: Human body model ! 2000V Machine model ! 200V ■Also packaged in plastic Fine-Pitch Ball Grid Array (FBGA) Note 1: To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pull-up resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver.

Ordering Code: Order Number Package Number Package Description 74VCX16244G BGA54A 54-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide (Note 2)(Note 3) 74VCX16244MTD MTD48 48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide (Note 3) Note 2: Ordering Code “G” indicates Tray. Note 3: Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

© 2005 Fairchild Semiconductor Corporation DS012168 www.fairchildsemi.com

Page Summary Contents For FAIRCHILD 74VCX16244 Data Handbook

Page 1 74V 16244 L Vo ltag e 16-B it B ffer/L in e D river w ith 3.6V To leran t In ts an tp ts October 1996 Revised June 2005 74VCX16244 Low Voltage 16-Bit Buffer/Line Driver with 3.6V Tolerant Inputs and O...
Page 2 Logic Symbol Pin Descriptions Pin Names Description OEn Output Enable Input (Active LOW) I0–I15 Inputs O0–O15 Outputs NC No Connect Connection Diagrams FBGA Pin Assignments Pin Assignment for TSSOP O0...
Page 3 74V Functional Description The 74VCX16244 contains sixteen non-inverting buffers puts are controlled by an Output Enable (OEn) input. When with 3-STATE outputs. The device is nibble (4 bits) con- OEn ...
Page 4 Absolute Maximum Ratings(Note 4) Recommended Operating Conditions (Note 6) Supply Voltage (VCC) 0.5V to 4.6V DC Input Voltage (VI) 0.5V to 4.6V Power Supply Output Voltage (VO) Operating 1.2V to 3.6...
Page 5 74V DC Electrical Characteristics (Continued) Symbol Parameter Conditions Min Max Units VOL LOW Level Output Voltage IOL 100 PA 2.7 - 3.6 0.2 IOL 12 m A 2.7 0.4 IOL 18 m A 3.0 0.4 IOL 24 m A 3.0 0.55 ...
Page 6 Dynamic Switching Characteristics VCC TA 25q C Symbol Parameter Conditions Units (V) Typical VOLP Quiet Output Dynamic Peak VOL CL 30 p F, VIH VCC, VIL 0V 1.8 0.25 VOLV Quiet Output Dynamic Valley VO...
Page 7 74V AC Loading and Waveforms (VCC 3.3V  0.3V to 1.8V  0.15V) TEST SWITCH t PLH, t PHL Open t PZL, t PLZ 6V at VCC 3.3 r 0.3V; VCC x 2 at VCC 2.5 r 0.2V; 1.8V r 0.15V t PZH, t PHZ GND FIGURE 1. AC Te...
Page 8 AC Loading and Waveforms (VCC 1.5  0.1V to 1.2V) TEST SWITCH t PLH, t PHL Open t PZL, t PLZ VCC x 2 at VCC 1.5 r 0.1V t PZH, t PHZ GND FIGURE 5. AC Test Circuit FIGURE 6. Waveform for Inverting and N...
Page 9 74V Physical Dimensions inches (millimeters) unless otherwise noted 54-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide Package Number BGA54A www.fairchildsemi.com
Page 10 lta -B it ff er /L in ri ve it .6 le ra In ts tp ts Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm W...

Manual Details

Brand Fairchild
Pages 10
File Size 117.70 KB
Published June 22, 2026
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Frequently Asked Questions

What precautions are needed when connecting the Output Enable (OE) input?

To ensure high-impedance state during power up or down, OE must be tied to VCC through a pull-up resistor.

What voltage range is the 74VCX16244 designed for?

It supports low voltages operating from 1.2V up to recommendable maximum of 3.6V.

How do I achieve full 16-bit operation with this device?

Full 16-bit operation is achieved by shorting the four separate nibble control inputs together.

Are these components suitable for critical life support applications?

No, they are not authorized for use as critical components in life support devices without written approval.