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SN74LVC4245ADB
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HerstellerTexas Instruments
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Herstellerteil #SN74LVC4245ADB
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Auf Lager18872
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Spezifikationen
| Attribut | Wert |
| Series | 74LVC |
| PartStatus | Active |
| TranslatorType | Voltage Level |
| ChannelType | Bidirectional |
| NumberofCircuits | 1 |
| Voltage-VCCA | 4.5 V ~ 5.5 V |
| Voltage-VCCB | 2.7 V ~ 3.6 V |
| OutputType | Tri-State |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 24-SSOP (0.209", 5.30mm Width) |
| SupplierDevicePackage | 24-SSOP |
| BaseProductNumber | 74LVC4245 |
Übersicht
Description
The device includes an output-enable (OE) pin, which can disable the outputs to save power or isolate the buses. It has a direction control (DIR) pin to determine the direction of data flow through the transceiver. The SN74LVC4245ADB supports live insertion, which means it can be connected or disconnected without disrupting the power supply to other parts of the circuit.
Its primary applications include interfacing between mixed voltage systems, such as microcontrollers and peripherals, and in communication systems where different voltage levels must interact. The part is available in various package options, making it suitable for diverse board layouts.
Equivalent
1. NXP 74LVC8T245 - An 8-bit dual-supply translating transceiver.
2. ON Semiconductor MC74LVX4245 - Similar 8-bit dual-supply bus transceiver.
3. Microchip Technology TC74VCX4245 - Another alternative with dual-supply voltage translation.
These alternatives provide similar functionality for voltage level shifting and bus interfacing. Compatibility should be verified based on specific application requirements.
Features
1. Dual-Supply Operation: Allows translation between different logic levels, supporting a VCCA range of 1.65 V to 5.5 V and a VCCB range of 2.3 V to 5.5 V.
2. Direction Control: The DIR pin controls the data flow direction, enabling bidirectional communication.
3. 3-State Outputs: Features a G (output enable) pin that places outputs in a high-impedance state, allowing for bus isolation.
4. High-Speed Operation: Capable of supporting high-speed data rates, up to 200 Mbps.
5. Power-Saving: Includes partial power-down mode and low static power consumption.
6. Robust Design: Offers input and output protection against static discharge and latch-up.
7. Compact Package: Available in multiple package options, making it suitable for space-constrained applications.
These features make the SN74LVC4245ADB ideal for interfacing various digital systems with differing supply voltages.
Pinout
Pin Count:
The SN74LVC4245ADB comes in a 24-pin package.
Function:
- Dual-Supply Operation: It allows for translation between different voltage levels due to its dual-supply feature, operating with VCCA (supply voltage for A port) and VCCB (supply voltage for B port).
- 3-State Outputs: Features 3-state outputs, which can drive high, low, or high-impedance states, enabling it to effectively disconnect from the bus when not in use.
- Direction Control: It has a direction-control pin (DIR) to determine the direction of data flow, either from A to B or B to A.
- Enable Pin: An output-enable pin (OE) is available to control the active state of the outputs.
- Translation Ranges: It supports voltage translation from 1.65V to 3.6V on A-port and 2.3V to 5.5V on B-port, making it suitable for mixed-voltage system interfacing.
This device is commonly used in digital systems where voltage level shifting between different parts of the system is needed.