Overview
The PCF8576CU/2/F2,026 is a universal LCD driver designed for low multiplex rates, manufactured by NXP USA Inc. This peripheral device is capable of interfacing with almost any Liquid Crystal Display (LCD) and is particularly suited for applications requiring static or multiplexed LCDs. The device supports up to four backplanes and up to 40 segments, making it versatile for various display configurations, including alphanumeric characters and graphics.
Key Specifications
| Parameter | Description |
|---|---|
| Package Type | UC (Ultra Compact) |
| Pins | 56 pins |
| Supply Voltage (VDD) | From 2 V to 6 V |
| LCD Supply Voltage (VLCD) | From 2 V to 6 V |
| Communication Interface | I2C-bus (two-line bidirectional) |
| Segment Outputs | Up to 40 segments |
| Backplane Outputs | Up to 4 backplanes |
| Display Bias Configuration | Static, 1/2, or 1/3 bias |
| Power Consumption | Low power consumption, with power-saving mode |
| Operating Temperature | -40°C to 85°C |
| RoHS Compliance | Yes (for certain packages) |
Key Features
- Single-chip LCD controller and driver
- Supports up to 40 segment drives, 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
- No external components required, even in multiple device applications
- Selectable backplane drive configuration: static, 2, 3, or 4 backplane multiplexing
- Internal LCD bias generation with voltage-follower buffers
- 40 x 4-bit RAM for display data storage
- 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
- Power-saving mode for extremely low power consumption in battery-operated and telephone applications
Applications
- Battery-operated devices due to low power consumption
- Telephone and mobile phone displays
- Industrial control panels and displays
- Automotive displays and instrument clusters
- Medical devices requiring LCD displays
- Consumer electronics such as calculators, clocks, and other portable devices
Q & A
- What is the primary function of the PCF8576CU/2/F2,026?
The primary function is to act as a universal LCD driver for low multiplex rates, interfacing with various LCD configurations.
- What communication interface does the PCF8576CU/2/F2,026 use?
The device communicates via the two-line bidirectional I2C-bus.
- How many segment outputs does the PCF8576CU/2/F2,026 support?
It supports up to 40 segment outputs.
- What are the possible backplane drive configurations for the PCF8576CU/2/F2,026?
The device supports static, 2, 3, or 4 backplane multiplexing configurations.
- Does the PCF8576CU/2/F2,026 require external components for operation?
No, it does not require external components, even in multiple device applications.
- What is the range of the supply voltage (VDD) for the PCF8576CU/2/F2,026?
The supply voltage range is from 2 V to 6 V.
- What is the operating temperature range for the PCF8576CU/2/F2,026?
The operating temperature range is from -40°C to 85°C.
- Is the PCF8576CU/2/F2,026 RoHS compliant?
Yes, certain packages of the PCF8576CU/2/F2,026 are RoHS compliant.
- Can the PCF8576CU/2/F2,026 be cascaded for larger LCD applications?
Yes, it can be cascaded for larger LCD applications, supporting up to 2560 elements.
- What power-saving features does the PCF8576CU/2/F2,026 have?
The device has a power-saving mode for extremely low power consumption, making it suitable for battery-operated devices.
