Overview
The PCF8553DTT/AY, produced by NXP USA Inc., is an ultra-low-power LCD segment driver designed for a wide range of display applications. This single-chip solution integrates an LCD controller and driver, offering both I²C and SPI bus interfaces. It is capable of driving up to 40 segment outputs and 4 backplane outputs, making it versatile for various display configurations, including numeric, alphanumeric, and graphic displays.
Key Specifications
| Parameter | Value |
|---|---|
| Configuration | 40 Segment, 4 Backplane |
| Voltage Supply | 1.8V to 5.5V (VLCD and VDD) |
| Display Type | LCD |
| Digits or Characters | Up to 20 7-segment numeric characters, up to 10 14-segment alphanumeric characters, or any graphics of up to 160 segments/elements |
| Interface | I²C (400 kHz) and SPI (5 MHz) |
| Operating Temperature | -40°C to 85°C |
| Package | TSSOP56 (Thin Shrink Small Outline Package) |
| Power Consumption | Ultra low-power |
Key Features
- Selectable backplane drive configuration: static, 2, 3, or 4 backplane multiplexing
- Selectable display bias configuration: static, 1⁄2, or 1⁄3
- Internal LCD bias generation with buffers
- Auto-incrementing display data and instruction loading
- Versatile blinking modes
- Independent supplies of VLCD and VDD
- Internally generated or externally supplied clock signal
Applications
- Metering equipment
- Small appliances
- Consumer healthcare devices
- Battery-operated devices
- Measuring equipment
Q & A
- What is the PCF8553DTT/AY used for? The PCF8553DTT/AY is used as an LCD segment driver for various display applications.
- What are the interface options for the PCF8553DTT/AY? It supports both I²C (400 kHz) and SPI (5 MHz) interfaces.
- What is the operating temperature range of the PCF8553DTT/AY? The operating temperature range is -40°C to 85°C.
- How many segment outputs does the PCF8553DTT/AY have? It has 40 segment outputs and 4 backplane outputs.
- What types of displays can the PCF8553DTT/AY drive? It can drive numeric, alphanumeric, and graphic displays.
- What is the power supply range for the PCF8553DTT/AY? The power supply range is 1.8V to 5.5V for both VLCD and VDD.
- Is the PCF8553DTT/AY suitable for battery-operated devices? Yes, it is designed for ultra-low power consumption, making it suitable for battery-operated devices.
- What package type is the PCF8553DTT/AY available in? It is available in a TSSOP56 package.
- Can the PCF8553DTT/AY generate its own clock signal? Yes, it can generate its own clock signal or use an externally supplied clock signal.
- What are some common applications of the PCF8553DTT/AY? Common applications include metering equipment, small appliances, consumer healthcare devices, and measuring equipment.
