Overview
The PCF8576DU/DA/2,026, produced by NXP USA Inc., is a versatile and highly integrated LCD driver and controller. This device is designed to interface between any microcontroller and a wide variety of LCD segment or dot matrix displays. It is particularly suited for applications requiring the drive of static or multiplexed LCDs with up to four backplanes and up to 40 segments.
This component is AEC-Q100 compliant for automotive applications, making it reliable for use in demanding environments. It features internal LCD bias generation, voltage-follower buffers, and a wide range of power supply options, ensuring flexibility and efficiency in various display configurations.
Key Specifications
| Specification | Description |
|---|---|
| Manufacturer | NXP USA Inc. |
| Part Number | PCF8576DU/DA/2,026 |
| Category | PMIC - Display Drivers |
| Package/Case | Die (unencased) |
| Power Supply Range | 1.8 V to 5.5 V (logic), 2.5 V to 6.5 V (LCD) |
| Segment Drives | Up to 40 segments (e.g., 20 7-segment numeric, 10 14-segment alphanumeric, or 160 graphics segments/elements) |
| Backplane Outputs | Four backplane outputs (BP0 to BP3) |
| Display Data Storage | 40 × 4-bit RAM |
| I2C-Bus Interface | 400 kHz |
| RoHS Compliance | Lead-free and RoHS compliant |
Key Features
- Single Chip Solution: Integrates LCD controller and driver functions.
- Selectable Drive Configurations: Supports static, 2, 3, or 4 backplane multiplexing and static, 1/2, or 1/3 display bias configurations.
- Internal LCD Bias Generation: Includes voltage-follower buffers for stable LCD operation.
- Display Data Storage: 40 × 4-bit RAM for storing display data.
- Auto-Incremented Data Loading: Across device subaddress boundaries.
- Versatile Blinking Modes: Supports various blinking patterns for display elements.
- Independent Supplies: Allows separate supplies for LCD and logic voltages.
- Low Power Consumption: Efficient operation to minimize power usage.
- Cascading Capability: Can be cascaded for large LCD applications (up to 2560 segments/elements).
Applications
- Automotive Displays: AEC-Q100 compliant, making it suitable for automotive applications.
- Industrial Control Panels: Ideal for driving various types of LCD displays in industrial settings.
- Consumer Electronics: Used in a wide range of consumer devices requiring LCD displays, such as calculators, meters, and other electronic gadgets.
- Medical Devices: Suitable for medical equipment that requires reliable and efficient LCD display control.
- Embedded Systems: Can be integrated into various embedded systems requiring LCD interface capabilities.
Q & A
- What is the PCF8576DU/DA/2,026 used for?
The PCF8576DU/DA/2,026 is a single chip LCD controller and driver designed to interface between any microcontroller and various LCD segment or dot matrix displays.
- What are the power supply requirements for the PCF8576DU/DA/2,026?
The device operates with a power supply range of 1.8 V to 5.5 V for logic and 2.5 V to 6.5 V for LCD supply.
- How many segment drives does the PCF8576DU/DA/2,026 support?
The device can drive up to 40 segments, including configurations for 7-segment numeric, 14-segment alphanumeric, and graphics displays.
- Is the PCF8576DU/DA/2,026 RoHS compliant?
- What is the I2C-bus interface frequency of the PCF8576DU/DA/2,026?
The I2C-bus interface operates at a frequency of 400 kHz.
- Can the PCF8576DU/DA/2,026 be cascaded for larger LCD applications?
- What types of display configurations does the PCF8576DU/DA/2,026 support?
The device supports static, 2, 3, or 4 backplane multiplexing and static, 1/2, or 1/3 display bias configurations.
- Does the PCF8576DU/DA/2,026 have internal LCD bias generation?
- What is the purpose of the 40 × 4-bit RAM in the PCF8576DU/DA/2,026?
The 40 × 4-bit RAM is used for storing display data.
- Is the PCF8576DU/DA/2,026 suitable for automotive applications?
