Overview
The SN74LV8153PWR, produced by Texas Instruments, is a serial-to-parallel data converter designed to accept serial input data and output 8-bit parallel data. This device features an automatic data-rate detection mechanism, eliminating the need for an external oscillator and thereby reducing cost and board space. The SN74LV8153PWR is versatile, allowing configuration of outputs as either open-collector or push-pull types, making it suitable for various applications including LED interfaces and other high-drive current requirements.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| VCC1 Supply Voltage | 3 V to 5.5 V | V | |
| VCC2 Supply Voltage | 3 V to 13.2 V | V | |
| Maximum Data Rate | 24 Kbps | Kbps | |
| Low-Level Output Current (IOL) - Open-Collector | 40 mA @ VCC2 = 4.5 V | mA | OUTSEL = L |
| High-Level Output Current (IOH) - Push-Pull | -24 mA @ VCC2 = 12 V | mA | OUTSEL = H |
| Operating Temperature Range | -40°C to 85°C | °C | |
| ESD Protection | 2000-V Human-Body Model, 1000-V Charged-Device Model | V | JESD 22 |
Key Features
- Single-wire serial data input compatible with UART serial-data format.
- Up to eight devices can share the same bus using different combinations of address pins (A0, A1, A2).
- Outputs can be configured as open-collector or push-pull.
- Internal oscillator and counter for automatic data-rate detection.
- Output levels referenced to VCC2 and configurable from 3 V to 12 V.
- Up to 40 mA current drive in open-collector mode for driving LEDs.
- Latch-up performance exceeds 250 mA per JESD 17.
- ESD protection exceeds JESD 22 standards.
Applications
The SN74LV8153PWR is suitable for a variety of applications, including:
- LED interfaces where high drive current is required.
- Systems requiring serial-to-parallel data conversion.
- Applications where multiple devices need to share the same bus.
- Automotive and industrial control systems due to its robust ESD protection and wide operating temperature range.
Q & A
- What is the primary function of the SN74LV8153PWR?
The primary function of the SN74LV8153PWR is to convert serial input data into 8-bit parallel output data.
- How does the device configure its output type?
The output type can be configured using the OUTSEL pin, which allows selection between open-collector and push-pull outputs.
- What is the maximum data rate supported by the SN74LV8153PWR?
The maximum data rate supported is 24 Kbps.
- Can multiple SN74LV8153PWR devices share the same bus?
Yes, up to eight devices can share the same bus by using different combinations of the address pins (A0, A1, A2).
- What is the operating temperature range of the SN74LV8153PWR?
The operating temperature range is -40°C to 85°C.
- What kind of ESD protection does the SN74LV8153PWR offer?
The device offers ESD protection exceeding JESD 22 standards, with 2000-V Human-Body Model and 1000-V Charged-Device Model.
- How does the automatic data-rate detection feature benefit the system design?
The automatic data-rate detection feature eliminates the need for an external oscillator, thereby reducing cost and board space.
- What is the significance of the SOUT pin in the SN74LV8153PWR?
The SOUT pin outputs a pulse when the latch data is changed, indicating the reception of serial data.
- How can the output levels be configured in terms of voltage?
The output levels are referenced to VCC2 and can be configured from 3 V to 12 V.
- What is the current drive capability in open-collector mode?
The device can drive up to 40 mA in open-collector mode, suitable for driving LEDs.
