Model No: 74LCX244MTCX
onsemi 74LCX244MTCX
Manufacturer: onsemi
SEMICON NO.: 74LCX244MTCX
Package: 20-TSSOP
Stock: In stock
Description: Buffer Non-Inverting 2 Element 3-State
SEMICON NO.: 74LCX244MTCX
Package: 20-TSSOP
Stock: In stock
Description: Buffer Non-Inverting 2 Element 3-State
Quantity :
| Mfr | onsemi |
| Device Type | Low Voltage Octal Buffer/Line Driver |
| Logic Family | 74LCX (Low Voltage CMOS) |
| Logic Type | Buffer/Line Driver, Non-Inverting |
| Number of Elements | 2 (Two 4-bit sections) |
| Bits per Element | 4 |
| Number of Channels | 8 (Octal) |
| Output Type | 3-State (Tri-State) |
| Supply Voltage | 2.0 V to 3.6 V |
| Input/Output Voltage Tolerance | 5 V Tolerant |
| Output Drive Current | ±24 mA |
| Quiescent Current | 10 µA(Max) |
| Operating Temperature | –40°C to +85°C |
| Package | 20-TSSOP |
| Mounting Type | Surface Mount |
| Compliance | RoHS Compliant |
The 74LCX244MTCX is a low-voltage octal buffer/line driver from onsemi (formerly Fairchild Semiconductor), featuring eight non-inverting buffers with 3-STATE outputs organized as two 4-bit sections with individual output-enable controls. Designed for 2.5V or 3.3V VCC applications with full 5V-tolerant inputs and outputs, this advanced CMOS logic IC achieves high-speed operation while maintaining low power dissipation, delivering a maximum propagation delay of 6.5ns at VCC = 3.3V and ±24mA balanced output drive current.
The device supports live insertion/withdrawal with power-down high-impedance I/O, incorporates proprietary noise/EMI reduction circuitry, and exceeds 500mA latch-up performance with >2000V HBM ESD tolerance. Housed in a compact 20-pin TSSOP package and operating across -40°C to +85°C, the 74LCX244MTCX serves as a memory address driver, clock driver, and bus-oriented transmitter/receiver in mixed-voltage systems.
onsemi buffer driver Applications
● Memory address drivers and clock drivers in low-voltage microprocessor and DSP systems.
● Bus-oriented transmitter/receiver applications in backplane and board-level data communication.
● Mixed-voltage system interfaces bridging 3.3V controllers to 5V peripherals and legacy logic.
● Hot-pluggable card and live-insertion modules requiring high-impedance I/O during power sequencing.
● Line driving for terminated transmission lines in computing and telecom equipment with ±24mA drive capability.
FAQs
Q: Can the 74LCX244MTCX accept 5V logic signals directly? A: Yes - both inputs and outputs are 5V tolerant, allowing the device to interface with 5V signal environments while operating from a 2.0V to 3.6V supply.
Q: What is the maximum propagation delay? A: 6.5ns at VCC = 3.3V, with 7.8ns specified across the full operating range in some distributor listings.
Q: Does the device support live insertion/withdrawal? A: Yes - the power-down high-impedance I/O feature enables hot-swapping when OE is properly biased via pull-up resistor to VCC.
Alternative octal buffer Models
1. 74LCX245MTCX: The bidirectional transceiver sibling with DIR pin for bus-oriented applications requiring reversible data flow.
2. 74LCX541MTCX: The pinout-variant octal buffer with different pin ordering for designs requiring alternate enable-pin placement.
3. 74LVX244MTCX: The 3.3V-only alternative without 5V tolerance for single-rail applications not requiring mixed-voltage interfacing.
4. 74LVT244MTC: The BiCMOS high-drive version offering improved speed and drive for heavily loaded bus applications.
The device supports live insertion/withdrawal with power-down high-impedance I/O, incorporates proprietary noise/EMI reduction circuitry, and exceeds 500mA latch-up performance with >2000V HBM ESD tolerance. Housed in a compact 20-pin TSSOP package and operating across -40°C to +85°C, the 74LCX244MTCX serves as a memory address driver, clock driver, and bus-oriented transmitter/receiver in mixed-voltage systems.
onsemi buffer driver Applications
● Memory address drivers and clock drivers in low-voltage microprocessor and DSP systems.
● Bus-oriented transmitter/receiver applications in backplane and board-level data communication.
● Mixed-voltage system interfaces bridging 3.3V controllers to 5V peripherals and legacy logic.
● Hot-pluggable card and live-insertion modules requiring high-impedance I/O during power sequencing.
● Line driving for terminated transmission lines in computing and telecom equipment with ±24mA drive capability.
FAQs
Q: Can the 74LCX244MTCX accept 5V logic signals directly? A: Yes - both inputs and outputs are 5V tolerant, allowing the device to interface with 5V signal environments while operating from a 2.0V to 3.6V supply.
Q: What is the maximum propagation delay? A: 6.5ns at VCC = 3.3V, with 7.8ns specified across the full operating range in some distributor listings.
Q: Does the device support live insertion/withdrawal? A: Yes - the power-down high-impedance I/O feature enables hot-swapping when OE is properly biased via pull-up resistor to VCC.
Alternative octal buffer Models
1. 74LCX245MTCX: The bidirectional transceiver sibling with DIR pin for bus-oriented applications requiring reversible data flow.
2. 74LCX541MTCX: The pinout-variant octal buffer with different pin ordering for designs requiring alternate enable-pin placement.
3. 74LVX244MTCX: The 3.3V-only alternative without 5V tolerance for single-rail applications not requiring mixed-voltage interfacing.
4. 74LVT244MTC: The BiCMOS high-drive version offering improved speed and drive for heavily loaded bus applications.
