Overview
The PCF8576DT/S400/2,1 is a universal LCD driver produced by NXP USA Inc. This peripheral device is designed to interface with almost any Liquid Crystal Display (LCD) that has low multiplex rates. It generates the drive signals for static or multiplexed LCDs containing up to four backplanes and up to 40 segments. The device is compatible with most microcontrollers and communicates via a two-line bidirectional I2C-bus, minimizing communication overhead through features like display RAM with auto-incremented addressing and hardware subaddressing.
Key Specifications
| Specification | Value |
|---|---|
| Package Type | TSSOP56 |
| Number of Leads | 56 |
| Body Width | 6.1 mm |
| Power Supply Range | 1.8 V to 5.5 V |
| Logic LCD Supply Range | 2.5 V to 6.5 V |
| I2C-bus Frequency | Up to 400 kHz |
| Segment Drives | Up to 40 segments |
| Display Data Storage | 40 4-bit RAM |
| Environmental Compliance | PbFree, EU RoHS, Halogen Free, REACH SVHC compliant |
Key Features
- Single chip LCD controller and driver
- Selectable backplane drive configuration: static or 2, 3, 4 backplane multiplexing
- Selectable display bias configuration: static, 1/2, or 1/3
- Internal LCD bias generation with voltage-follower buffers
- Supports up to 20 7-segment numeric characters or up to 10 14-segment alphanumeric characters
- Auto-incremented display data loading across device subaddress boundaries
- Display memory bank switching in static and duplex drive modes
- Versatile blinking modes
- Independent supplies possible for LCD and logic voltages
- Low power consumption
- May be cascaded for large LCD applications (up to 2560 segments/elements possible)
Applications
The PCF8576DT/S400/2,1 is suitable for a wide range of applications including industrial, automotive, and consumer electronics. It is particularly useful in systems requiring the display of numeric or alphanumeric data, such as in instrumentation, control panels, and various types of displays. The device can also be used in chip-on-glass and chip-on-board technologies.
Q & A
- What is the primary function of the PCF8576DT/S400/2,1? The primary function is to generate drive signals for LCDs with low multiplex rates.
- What type of package does the PCF8576DT/S400/2,1 come in? It comes in a TSSOP56 package.
- What is the power supply range for the PCF8576DT/S400/2,1? The power supply range is from 1.8 V to 5.5 V.
- How many segments can the PCF8576DT/S400/2,1 drive? It can drive up to 40 segments.
- Is the PCF8576DT/S400/2,1 compatible with most microcontrollers? Yes, it is compatible with most microcontrollers and communicates via a two-line bidirectional I2C-bus.
- What are the environmental compliance standards for the PCF8576DT/S400/2,1? It is PbFree, EU RoHS, Halogen Free, and REACH SVHC compliant.
- Can the PCF8576DT/S400/2,1 be cascaded for larger LCD applications? Yes, it can be cascaded for larger LCD applications (up to 2560 segments/elements possible).
- What is the recommended replacement part for new design-ins in industrial applications? The recommended replacement part is PCF85176T/1.
- What is the recommended replacement part for new design-ins in automotive applications? The recommended replacement part is PCA85176T/Q900/1.
- What is the frequency of the I2C-bus interface? The I2C-bus interface frequency is up to 400 kHz.
