SN74LVC244AQPWRQ1
Logic ICs
Technical Specifications
| Type | Description |
|---|---|
| Quiescent Current | 40 µA |
| Input Type | - |
| Current - Output High(IOH) | 24mA |
| Current - Output Low(IOL) | 24mA |
| Number of Bits per Element | 4 |
| Channel Type | Unidirectional |
| Supply Voltage | 1.65V~3.6V |
| Type | Description |
|---|---|
| Output Type | Tri-State |
| Operating Temperature | -40°C~+125°C |
| Features | Output enable;Power-off isolation;Level shifting |
| Number of Elements | 2 |
| Tpd Ns | 5.7ns@3.3V,50pF |
| Package / Case | TSSOP-20 |
Product Introduction
This octal buffer/line driver is operational at 1.5-V to 3.6-V VCC, but is designed specifically for 1.65-V to 3.6-V VCC operation.
The SN74LVC244A is organized as two 4-bit line drivers with separate output-enable (OE(overline)) inputs. When OE is low, the device passes data from the A inputs to the Y outputs. When OE is high, the outputs are in the high-impedance state.
Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator in a mixed 3.3-V/5-V system environment.
To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.
Features
- Operates From 1.65 V to 3.6 V
- Inputs Accept Voltages to 5.5 V
- Specified From -40℃ to 85℃ and -40℃ to 125℃
- Max tpd of 5.9 ns at 3.3 V
- Typical V0LP (Output Ground Bounce) < 0.8 V at VCC = 3.3 V, TA = 25℃
- Typical V0HV (Output V0H Undershoot) > 2 V at VCC = 3.3 V, TA = 25℃
- Supports Mixed-Mode Signal Operation on All Ports (5-V Input/Output Voltage With 3.3-V VCC)
- Ioff Supports Partial-Power-Down Mode Operation
- Latch-Up Performance Exceeds 250 mA Per JESD 17
Applications
- Level translation for mixed-voltage systems
- Line signal buffer driving
- Applications requiring partial power-down functionality
Datasheet
Alternative Parts
Common SN74LVC244AQPWRQ1 alternatives overseas buyers search for:
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
Sourcing Information
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