사양
| 속성 | 가치 |
| Supplier | Texas Instruments,Rochester Electronics, LLC |
| Package / Case | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Series | 74LVCH |
| Part Status | Active |
| Logic Type | Buffer, Non-Inverting |
| Number of Elements | 2 |
| Number of Bits per Element | 4 |
| Output Type | 3-State |
| Current - Output High Low | 24mA, 24mA |
| Voltage - Supply | 1.65V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
개요
Description
SN74LVCH244ARGYR is an 8-bit buffer/line driver with two 4-bit tri-state sections. It buffers data from inputs A1–A8 to outputs Y1–Y8, with separate output-enable pins (OE1 and OE2) to put each 4-bit group in high-impedance when disabled. It belongs to TI’s LVCH family, designed for low-voltage CMOS operation and high-speed performance.
Key points:
- 8 non-inverting buffers, two 4-bit sections with independent enables
- 3-state outputs (Hi-Z when disabled)
- Operating voltage: typically 1.65 V to 3.6 V (suitable for 1.8–3.3 V logic domains)
- Suitable for bus buffering, data isolation, and level-shifting between logic families
- CMOS inputs with standard thresholds; low static power
- RoHS-compliant lead-free packaging (suffix G/YR indicates a green, RoHS-compliant option; packaging type indicated by suffix)
For exact electrical specs (Vih/Vil, VOL/VOH, tPD, current limits) and pinout, consult the current TI SN74LVCH244A datasheet.
Key points:
- 8 non-inverting buffers, two 4-bit sections with independent enables
- 3-state outputs (Hi-Z when disabled)
- Operating voltage: typically 1.65 V to 3.6 V (suitable for 1.8–3.3 V logic domains)
- Suitable for bus buffering, data isolation, and level-shifting between logic families
- CMOS inputs with standard thresholds; low static power
- RoHS-compliant lead-free packaging (suffix G/YR indicates a green, RoHS-compliant option; packaging type indicated by suffix)
For exact electrical specs (Vih/Vil, VOL/VOH, tPD, current limits) and pinout, consult the current TI SN74LVCH244A datasheet.
Equivalent
Equivalent devices (8-bit octal buffer/driver with 3-state outputs, 2.7–5.5 V):
- Nexperia (formerly NXP/Philips): 74LVCH244 (e.g., 74LVCH244APW)
- Onsemi: MC74LVCH244 (MC74LVCH244A)
- TI: SN74LVC244A (pin-compatible in many packages)
- ST: 74LVC244A (where available)
Note: verify exact package, drive strength, and Vcc-range; electrical characteristics can vary slightly.
- Nexperia (formerly NXP/Philips): 74LVCH244 (e.g., 74LVCH244APW)
- Onsemi: MC74LVCH244 (MC74LVCH244A)
- TI: SN74LVC244A (pin-compatible in many packages)
- ST: 74LVC244A (where available)
Note: verify exact package, drive strength, and Vcc-range; electrical characteristics can vary slightly.
Features
Here are the key features of SN74LVCH244ARGYR:
- 8-bit buffer/line driver with 3-state outputs (A inputs to Y outputs)
- Two independent 4-bit buffer banks with separate enables: 1OE and 2OE (active LOW)
- Noninverting buffers
- Wide operating voltage: LVCH family (typically 1.65 V to 3.6 V)
- CMOS input thresholds with good noise margins; suitable for 3.3-V and lower systems
- Low static/dynamic power consumption
- Outputs go High-Z when disabled for bus sharing
- Standard 20-pin package (ARGYR is the TI packaging code for that variant)
- Suitable for data/address bus buffering and level‑shifting in low‑power designs
Note: Always check the exact voltage range and ratings in the datasheet for your exact lot/package.
- 8-bit buffer/line driver with 3-state outputs (A inputs to Y outputs)
- Two independent 4-bit buffer banks with separate enables: 1OE and 2OE (active LOW)
- Noninverting buffers
- Wide operating voltage: LVCH family (typically 1.65 V to 3.6 V)
- CMOS input thresholds with good noise margins; suitable for 3.3-V and lower systems
- Low static/dynamic power consumption
- Outputs go High-Z when disabled for bus sharing
- Standard 20-pin package (ARGYR is the TI packaging code for that variant)
- Suitable for data/address bus buffering and level‑shifting in low‑power designs
Note: Always check the exact voltage range and ratings in the datasheet for your exact lot/package.
Pinout
- Pin count: 20 pins
- Function: Octal buffer/driver with 3-state outputs (A0–A7 to Y0–Y7) with bidirectional data flow controlled by DIR and an OE input to enable/tri-state the outputs. Used as a bus buffer/buffer driver.
- Function: Octal buffer/driver with 3-state outputs (A0–A7 to Y0–Y7) with bidirectional data flow controlled by DIR and an OE input to enable/tri-state the outputs. Used as a bus buffer/buffer driver.
Manufacturer
The SN74LVCH244ARGYR is manufactured by Texas Instruments (TI). TI is an American multinational technology company that designs and manufactures semiconductors and integrated circuits (analog and digital ICs).
Application
- An 8-bit, non-inverting buffer/line driver with 3-state outputs.
- Used to interface CPUs/MCUs with memory and peripherals (data, address, and control lines).
- Ideal for bus buffering and signal distribution on shared buses with tri-state enable.
- Provides signal isolation and fan-out expansion for high-speed, low-voltage digital paths.
- Suitable for portable/embedded systems, backplanes, and other interconnects requiring reliable drive and bus control.
- Used to interface CPUs/MCUs with memory and peripherals (data, address, and control lines).
- Ideal for bus buffering and signal distribution on shared buses with tri-state enable.
- Provides signal isolation and fan-out expansion for high-speed, low-voltage digital paths.
- Suitable for portable/embedded systems, backplanes, and other interconnects requiring reliable drive and bus control.
Package
The SN74LVCH244ARGYR comes in a 20-pin TSSOP (Thin Shrink Small-Outline) package, RoHS-compliant.
