사양
| 속성 | 가치 |
| Supplier | Texas Instruments |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Series | 74ALVCH |
| Part Status | Active |
| Logic Type | Buffer, Non-Inverting |
| Number of Elements | 4 |
| 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
SN74ALVCH16244DGGR is a 16‑bit buffer/driver with 3‑state outputs from TI’s ALVCH family. It provides two 8‑bit buffer sections on one device, controlled by two independent output-enable inputs (1OE and 2OE). When an OE pin is asserted (low), the corresponding 8 data lines drive the outputs; when deasserted (high), those outputs go to high impedance, allowing multiple devices to share a bus.
Key points:
- Non‑inverting, 16‑bit buffer/driver with two 8‑bit sections
- 3‑state outputs for bus interfacing and isolation
- Two active‑low OE controls for independent sectional enable
- Low‑voltage operation (ALVCH family: typically 1.65–3.6 V) with bus‑hold inputs for noise resistance
- Package: 20‑pin, RoHS-compliant (DGGR variant)
Typical use: buffer memory or I/O buses between logic domains, expand a microcontroller’s data bus, or isolate devices on a shared data path.
Key points:
- Non‑inverting, 16‑bit buffer/driver with two 8‑bit sections
- 3‑state outputs for bus interfacing and isolation
- Two active‑low OE controls for independent sectional enable
- Low‑voltage operation (ALVCH family: typically 1.65–3.6 V) with bus‑hold inputs for noise resistance
- Package: 20‑pin, RoHS-compliant (DGGR variant)
Typical use: buffer memory or I/O buses between logic domains, expand a microcontroller’s data bus, or isolate devices on a shared data path.
Equivalent
- MC74ALVCH16244 (ON Semiconductor)
- 74ALVCH16244 (Nexperia, formerly Philips/NXP)
- 74ALVC16244 (Nexperia/other vendors, functionally the same family)
- 74ALVCH16244 (Nexperia, formerly Philips/NXP)
- 74ALVC16244 (Nexperia/other vendors, functionally the same family)
Pinout
Pin count: 20 pins (DGGR package).
Function: SN74ALVCH16244DGGR is a 16-bit buffer/driver with 3-state outputs, organized as two 8-bit banks. Each bank has its own output‑enable control, allowing the outputs to be tri-stated for bus sharing. It buffers data between a source and a destination bus in non-inverting mode.
Function: SN74ALVCH16244DGGR is a 16-bit buffer/driver with 3-state outputs, organized as two 8-bit banks. Each bank has its own output‑enable control, allowing the outputs to be tri-stated for bus sharing. It buffers data between a source and a destination bus in non-inverting mode.
Manufacturer
- Manufacturer: Texas Instruments (TI).
- Company type: American multinational corporation that designs and manufactures semiconductors and integrated circuits (specializing in analog and mixed-signal, and digital processing products).
- Company type: American multinational corporation that designs and manufactures semiconductors and integrated circuits (specializing in analog and mixed-signal, and digital processing products).
Application
SN74ALVCH16244DGGR is a 16‑bit buffer/driver with two 8‑bit sections and 3‑state outputs. Typical application areas include:
- Buffering/expanding 16‑bit data and address buses in microprocessor/microcontroller systems
- Interfacing devices across voltage domains (1.65–3.6 V logic)
- Bus isolation to improve signal integrity and reduce fan‑out on high‑speed data paths
- Memory‑mapped I/O, peripheral interfaces, and data paths between FPGAs/CPLDs and ASICs/DACs/ADCs
- Buffering/expanding 16‑bit data and address buses in microprocessor/microcontroller systems
- Interfacing devices across voltage domains (1.65–3.6 V logic)
- Bus isolation to improve signal integrity and reduce fan‑out on high‑speed data paths
- Memory‑mapped I/O, peripheral interfaces, and data paths between FPGAs/CPLDs and ASICs/DACs/ADCs
Package
It's a 20-pin VSSOP (Very-Small-Outline Package); the DGGR suffix denotes the RoHS-compliant VSSOP‑20 version of SN74ALVCH16244.
