規格
| 屬性 | 價值 |
| Supplier | Rochester Electronics, LLC,Texas Instruments |
| Package / Case | Bulk,Tube |
| Series | 74LVCR |
| Part Status | Active |
| Logic Type | Transceiver, Non-Inverting |
| Number of Elements | 1 |
| Number of Bits per Element | 8 |
| Output Type | 3-State |
| Current - Output High Low | 12mA, 12mA |
| Voltage - Supply | 1.65V ~ 3.6V |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount |
概述
Description
SN74LVCR2245APW is a TI device in the SN74LVCR family. It is a high-speed, low-voltage 20-bit buffer/driver with tri-state outputs, designed to buffer and isolate a wide data bus in CMOS systems.
Key points:
- 20 total buffered I/O lines (buffers a wide data/address bus).
- 3-state outputs controlled by enable signals (OE), enabling or disabling the entire outputs.
- Single-supply operation in the low-voltage CMOS range (about 1.65 V to 3.6 V).
- Low power consumption and fast propagation suitable for buffering in data paths, memory interfaces, and backplanes.
- APW suffix indicates a particular TI package option (20-pin) for this part.
Note: For exact pinout, drive strength, timing parameters, and full operating conditions, refer to the SN74LVCR2245APW datasheet. This provides the authoritative specifications and recommended usage.
Key points:
- 20 total buffered I/O lines (buffers a wide data/address bus).
- 3-state outputs controlled by enable signals (OE), enabling or disabling the entire outputs.
- Single-supply operation in the low-voltage CMOS range (about 1.65 V to 3.6 V).
- Low power consumption and fast propagation suitable for buffering in data paths, memory interfaces, and backplanes.
- APW suffix indicates a particular TI package option (20-pin) for this part.
Note: For exact pinout, drive strength, timing parameters, and full operating conditions, refer to the SN74LVCR2245APW datasheet. This provides the authoritative specifications and recommended usage.
Equivalent
Equivalent parts are other 20‑bit buffer/line drivers with 3‑state outputs in the LVCR family. Known equivalents:
- Nexperia (formerly Philips): 74LVCR2245
- ON Semiconductor: MC74LVCR2245
Note: verify pinout, voltage, and package (APW) compatibility; some vendors use different suffixes.
- Nexperia (formerly Philips): 74LVCR2245
- ON Semiconductor: MC74LVCR2245
Note: verify pinout, voltage, and package (APW) compatibility; some vendors use different suffixes.
Pinout
Pin count: 20 pins.
Function: Dual 4-bit bidirectional bus transceiver with 3-state outputs (A0–A3 to B0–B3). Features direction control (DIR) to select data flow and output enable (OE) to place the outputs in a high-impedance state.
Function: Dual 4-bit bidirectional bus transceiver with 3-state outputs (A0–A3 to B0–B3). Features direction control (DIR) to select data flow and output enable (OE) to place the outputs in a high-impedance state.
Manufacturer
- Manufacturer: Texas Instruments (TI).
- Company type: American multinational semiconductor company that designs and manufactures analog and digital integrated circuits and other semiconductor devices; headquartered in Dallas, Texas.
- Company type: American multinational semiconductor company that designs and manufactures analog and digital integrated circuits and other semiconductor devices; headquartered in Dallas, Texas.
Application
- Level shifting between different voltage domains (e.g., 1.8/2.5V to 3.3/5V)
- Bidirectional bus buffering/translation for data and address lines
- I/O expansion for microcontrollers, FPGAs, ASICs
- Memory and peripheral interfaces (RAM/FLASH) requiring buffered, wide data buses
- High-speed digital backplanes and signal integrity improvements
- Automotive and industrial electronics needing robust tri-state buffering and isolation
Note: SN74LVCR2245APW is a high-density, low-voltage, bidirectional buffer/transceiver suitable for wide-bit bus applications.
- Bidirectional bus buffering/translation for data and address lines
- I/O expansion for microcontrollers, FPGAs, ASICs
- Memory and peripheral interfaces (RAM/FLASH) requiring buffered, wide data buses
- High-speed digital backplanes and signal integrity improvements
- Automotive and industrial electronics needing robust tri-state buffering and isolation
Note: SN74LVCR2245APW is a high-density, low-voltage, bidirectional buffer/transceiver suitable for wide-bit bus applications.
Package
PW suffix indicates a TSSOP package. SN74LVCR2245APW is in a 24-pin TSSOP (Plastic Thin Shrink Small Outline) package.
