74LVC245A
Every spec below is cited to the manufacturer datasheet. Compare the closest alternatives, then ask the assistant what it means for your design.
What the 74LVC245A does
The 74LVC245A and 74LVCH245A are octal bus transceivers with 3-state outputs designed for 8-bit data transfer. These devices feature direction control via a DIR pin and output enable via an OE pin, allowing bidirectional communication between systems. They operate across a wide supply voltage range from 1.2 V to 3.6 V and support inputs driven from either 3.3 V or 5 V sources. Schmitt-trigger action at all inputs ensures tolerance for slower signal rise and fall times. The 74LVCH245A variant includes bus hold on all data inputs. Both parts comply with JEDEC standards for various voltage ranges and offer ESD protection exceeding 2000 V for HBM. They are specified for operation from -40 °C to +85 °C and -40 °C to +125 °C, making them suitable for commercial, industrial, and military applications. The I circuitry provides partial power-down mode operation to prevent damaging backflow current when powered down. These transceivers facilitate mixed 3.3 V and 5 V environments effectively.
Datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | 100 nA | 10 µA | VI = VCCor GND; IO = 0 A; VCC = 3.6 V; icc; Octal bus transceiver; 3-state | Nexperia datasheet, p. 6 — Octal bus transceiver; 3-state |
| supply voltage range | 1.65 V | — | 3.6 V | vcc; Recommended operating conditions | Nexperia datasheet, p. 5 — Table 5. Recommended operating conditions |
| operating temperature | -40 °C | — | 125 °C | in free air; tamb; Recommended operating conditions | Nexperia datasheet, p. 5 — Table 5. Recommended operating conditions |
| power dissipation (abs max) | — | — | 500 mW | [3]; ptot; Limiting values | Nexperia datasheet, p. 4 — Table 4. Limiting values |
| input capacitance | — | 4 pF | — | VCC = 0 V to 3.6 V; VI = GND to VCC; ci; Octal bus transceiver; 3-state | Nexperia datasheet, p. 6 — Octal bus transceiver; 3-state |
| propagation delay | 1.5 ns | 6.5 ns | 14.6 ns | VCC = 1.65 V to 1.95 V; tpd; Dynamic characteristics | Nexperia datasheet, p. 7 — Table 7. Dynamic characteristics |
| output voltage high | 1.05 V | — | — | IO = -4 mA; VCC = 1.65 V; voh; Static characteristics | Nexperia datasheet, p. 5 — Table 6. Static characteristics |
| output voltage low | — | — | 200 mV | IO = 100 μA; VCC = 1.65 V to 3.6 V; vol; Static characteristics | Nexperia datasheet, p. 5 — Table 6. Static characteristics |
| channel count | — | 8 | — | Nexperia datasheet, p. 1 | |
| driver count | — | 8 | — | Nexperia datasheet, p. 1 | |
| receiver count | — | 8 | — | Nexperia datasheet, p. 1 |
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Frequently asked questions
How many channels does the 74LVC245A have?
The 74LVC245A has 8 channels.
What is the driver count for the 74LVC245A?
The driver count is 8.
What is the input capacitance of the 74LVC245A Octal bus transceiver with 3-state when VCC = 0 V to 3.6 V, VI = GND to VCC, and ci?
The input capacitance is 4 pF.
What is the maximum operating temperature (Tamb) for the 74LVC245A in free air?
The maximum operating temperature is 125 °C.
What is the output voltage high (VOH) when IO = -4 mA and VCC = 1.65 V?
The output voltage high is 1.05 V.
What is the maximum output voltage low (vol) for the 74LVC245A under static conditions?
The output voltage low is 200 mV when IO = 100 μA and VCC = 1.65 V to 3.6 V.
What is the maximum power dissipation under Limiting values?
The power dissipation is 500 mW.
What is the propagation delay (tpd) for the 74LVC245A under dynamic characteristics when VCC is between 1.65 V and 1.95 V?
The propagation delay (tpd) is 6.5 ns when VCC = 1.65 V to 1.95 V under dynamic characteristics.
What is the quiescent current for the 74LVC245A Octal bus transceiver with 3-state when VI = VCCor GND, IO = 0 A, and VCC = 3.6 V?
The quiescent current is 100 nA.
What is the receiver count for the 74LVC245A?
The receiver count is 8.
What is the supply voltage range for the 74LVC245A under recommended operating conditions?
The supply voltage range is 3.6 V at vcc.