SN74AVC2T244 2-Bit Unidirectional Voltage-level Translator
1 Features
- Wide Operating VCC Range of 0.9 V to 3.6 V
- Low Static-Power Consumption, 6-µA Max ICC
- Output Enable Feature Allows User to Disable Outputs to Reduce Power Consumption
- ±24-mA Output Drive at 3.0 V
- Ioff Supports Partial Power-Down-Mode Operation
- Input Hysteresis Allows Slow Input Transition and Better Switching Noise Immunity at Input
- Maximum Data Rates
- 380 Mbps (1.8-V to 3.3-V Translation)
- 200 Mbps (<1.8-V to 3.3-V Translation)
- 200 Mbps (Translate to 2.5 V or 1.8 V)
- 150 Mbps (Translate to 1.5 V)
- 100 Mbps (Translate to 1.2 V)
- Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
- ESD Protection Exceeds JESD 22
- 5000-V Human-Body Model (A114-A)
2 Applications
- Handset, Smartphone, Tablet, Server
3 Description
This 2-bit unidirectional translator uses two separate configurable power-supply rails. The A port is designed to track VCCA. VCCA accepts any supply voltage from 0.9 V to 3.6 V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 0.9 V to 3.6 V. This allows for low-voltage translation between 0.9-V, 1.2-V, 1.5-V, 1.8-V, 2.5-V and 3.6-V voltage nodes. For the SN74AVC2T244, when the output-enable ( OE) input is high, all outputs are placed in the high-impedance state. The SN74AVC2T244 is designed so that the OE input circuit is referenced to VCCA. 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.
DQE and DQM Packages8 Pin X2SON(Top
View)5 Pin Configuration and Functions
Figure 5-1 DQE and DQM Packages8 Pin X2SON(Top View)| PIN | FUNCTION |
|---|---|
| VCCA | Input Port DC Power Supply |
| VCCB | Output Port DC Power Supply |
| GND | Ground |
| An | Input Port |
| Bn | Output Port |
| OE | Output Enable |
