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Technical Specifications
Parameters and characteristics for this part
| Specification | 74LVCH8T245NSRG4 |
|---|---|
| Current - Output High, Low [x] | 32 mA |
| Current - Output High, Low [y] | 32 mA |
| Logic Type | Translation Transceiver |
| Mounting Type | Surface Mount |
| Number of Bits per Element | 8 |
| Number of Elements | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Output Type | 3-State |
| Package / Case | 24-SOIC |
| Package / Case [custom] | 5.3 mm |
| Package / Case [custom] | 0.209 in |
| Supplier Device Package | 24-SO |
| Voltage - Supply [Max] | 5.5 V |
| Voltage - Supply [Min] | 1.65 V |
SN74LVCH8T245 Series
8-bit dual-supply bus transceiver with configurable voltage translation and 3-state outputs
| Part | Voltage - Supply [Max] | Voltage - Supply [Min] | Package / Case | Package / Case [custom] | Package / Case [custom] | Current - Output High, Low [y] | Current - Output High, Low [x] | Operating Temperature [Max] | Operating Temperature [Min] | Output Type | Logic Type | Mounting Type | Number of Bits per Element | Number of Elements | Supplier Device Package | Package / Case | Supplier Device Package [y] | Supplier Device Package [x] | Package / Case [custom] | Package / Case [custom] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments | 5.5 V | 1.65 V | 24-SOIC | 5.3 mm | 0.209 in | 32 mA | 32 mA | 85 °C | -40 °C | 3-State | Translation Transceiver | Surface Mount | 8 | 1 | 24-SO | |||||
Texas Instruments | 5.5 V | 1.65 V | 24-SOIC | 5.3 mm | 0.209 in | 32 mA | 32 mA | 85 °C | -40 °C | 3-State | Translation Transceiver | Surface Mount | 8 | 1 | 24-SO | |||||
 Texas Instruments | 5.5 V | 1.65 V | 24-TSSOP | 32 mA | 32 mA | 85 °C | -40 °C | 3-State | Translation Transceiver | Surface Mount | 8 | 1 | 24-TSSOP | 0.173 in 4.4 mm | ||||||
 Texas Instruments | 5.5 V | 1.65 V | 24-SSOP | 32 mA | 32 mA | 85 °C | -40 °C | 3-State | Translation Transceiver | Surface Mount | 8 | 1 | 24-SSOP | |||||||
 Texas Instruments | 5.5 V | 1.65 V | 24-VFQFN Exposed Pad | 32 mA | 32 mA | 85 °C | -40 °C | 3-State | Translation Transceiver | Surface Mount | 8 | 1 | 24-VQFN | 3.5 | 5.5 | |||||
 Texas Instruments | 5.5 V | 1.65 V | 24-SOIC | 32 mA | 32 mA | 85 °C | -40 °C | 3-State | Translation Transceiver | Surface Mount | 8 | 1 | 24-SOIC | 7.5 mm | 0.295 in |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tape & Reel (TR) | 2000 | $ 0.49 | |
| 6000 | $ 0.47 | |||
| 10000 | $ 0.45 | |||
Description
General part information
SN74LVCH8T245 Series
The SN74LVCH8T245 is an 8-bit noninverting bus transceiver that uses two separate configurable power-supply rails. The A port is designed to track VCCA, which accepts any supply voltage from 1.65 V to 5.5 V. The B port is designed to track VCCB, which also accepts any supply voltage from 1.65 V to 5.5 V. This allows for universal low-voltage bidirectional translation between any of the 1.8-V, 2.5-V, 3.3-V, and 5.5-V voltage nodes.
The SN74LVCH8T245 is designed for asynchronous communication between two data buses. The logic levels of the direction-control (DIR) input and the output-enable (OE) input activate either the B-port outputs, the A-port outputs, or place both output ports into a high-impedance state. The device transmits data from the A bus to the B bus when the B-port outputs are activated, and from the B bus to the A bus when the A-port outputs are activated. The input circuitry on both A and B ports are always active.
Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended. This device is fully specified for partial-power-down applications using Ioff. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device. The VCCisolation feature ensures that if either VCCAor VCCBis at GND, then the outputs are in the high-impedance state. To ensure the high-impedance state during power up or power down,OEshould be tied to VCCAthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
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