Overview
The PCF8576CU/F1,026 is a universal LCD driver produced by NXP USA Inc. This integrated circuit is designed to interface with a wide variety of Liquid Crystal Display (LCD) configurations, particularly those with low multiplex rates. It is a versatile peripheral device that can be used with most microcontrollers and communicates via the two-line bidirectional I2C-bus. The PCF8576CU/F1,026 is part of the PCF8576C family, which is known for its ability to drive static or multiplexed LCDs containing up to four backplanes and up to 40 segments.
Key Specifications
| Parameter | Description |
|---|---|
| Package Type | UC (Unencased Die) |
| Number of Pins | Varies by package (e.g., 64 pins for LQFP64, 56 pins for VSO56) |
| LCD Segment Outputs | Up to 40 segment outputs |
| LCD Backplane Outputs | Up to 4 backplane outputs |
| Display Bias Configuration | Static, 1/2, or 1/3 display bias configuration |
| LCD Supply Voltage | From 2 V for low-threshold LCDs to 6 V for high-threshold twisted nematic LCDs |
| Logic Supply Voltage | Separate or combined LCD and logic supplies |
| Communication Interface | I2C-bus serial interface |
| Power Consumption | Low power consumption with a power-saving mode |
| Environmental Compliance | PbFree, EU RoHS, and Halogen Free compliant |
Key Features
- Single-chip LCD controller and driver capable of driving up to four backplanes and up to 40 segments.
- Supports various display configurations, including up to twenty 7-segment alphanumeric characters, up to ten 14-segment alphanumeric characters, and any graphics of up to 160 elements.
- Versatile blinking modes and internal LCD bias generation with voltage-follower buffers.
- No external components required, even in multiple device applications.
- Selectable backplane drive configuration: static, 2, 3, or 4 backplane multiplexing.
- Auto-incremented display data loading across device subaddress boundaries.
- Display memory bank switching in static and duplex drive modes.
- Optimized pinning for plane wiring in both single and multiple PCF8576C applications.
- Low power consumption with a power-saving mode for battery-operated and telephone applications.
Applications
The PCF8576CU/F1,026 is suitable for a wide range of applications involving LCD displays, including:
- Consumer electronics such as telephones, calculators, and other handheld devices.
- Industrial control panels and displays.
- Automotive displays and instruments.
- Medical devices requiring LCD displays.
- Any system requiring a versatile and efficient LCD driver with low power consumption.
Q & A
- What is the primary function of the PCF8576CU/F1,026?
The primary function of the PCF8576CU/F1,026 is to act as a universal LCD driver, interfacing with microcontrollers to drive various LCD display configurations.
- What types of LCD displays can the PCF8576CU/F1,026 support?
The PCF8576CU/F1,026 can support static or multiplexed LCDs containing up to four backplanes and up to 40 segments.
- What communication interface does the PCF8576CU/F1,026 use?
The PCF8576CU/F1,026 communicates via the two-line bidirectional I2C-bus.
- What is the power consumption profile of the PCF8576CU/F1,026?
The PCF8576CU/F1,026 has low power consumption and includes a power-saving mode for extremely low power consumption in battery-operated and telephone applications.
- Does the PCF8576CU/F1,026 require external components for operation?
No, the PCF8576CU/F1,026 does not require external components, even in multiple device applications.
- What are the environmental compliance standards for the PCF8576CU/F1,026?
The PCF8576CU/F1,026 is PbFree, EU RoHS, and Halogen Free compliant.
- Can the PCF8576CU/F1,026 be cascaded for larger LCD applications?
Yes, the PCF8576CU/F1,026 can be cascaded for larger LCD applications, supporting up to 2560 elements.
- What are the typical applications of the PCF8576CU/F1,026?
The PCF8576CU/F1,026 is typically used in consumer electronics, industrial control panels, automotive displays, medical devices, and any system requiring a versatile and efficient LCD driver.
- What is the LCD supply voltage range for the PCF8576CU/F1,026?
The LCD supply voltage range for the PCF8576CU/F1,026 is from 2 V for low-threshold LCDs to 6 V for high-threshold twisted nematic LCDs.
- Does the PCF8576CU/F1,026 support display memory bank switching?
Yes, the PCF8576CU/F1,026 supports display memory bank switching in both static and duplex drive modes.
