Overview
The PCF8576CT/1,518, produced by NXP USA Inc., is a versatile peripheral device designed to interface with a wide variety of Liquid Crystal Display (LCD) configurations. This integrated circuit is particularly suited for applications requiring low multiplex rates and can drive static or multiplexed LCDs containing up to four backplanes and up to 40 segments. It is compatible with most microcontrollers and communicates via the two-line bidirectional I2C-bus, minimizing communication overheads through features like display RAM with auto-incremented addressing and hardware subaddressing.
Key Specifications
| Parameter | Description |
|---|---|
| Manufacturer | NXP USA Inc. |
| Package Type | 56-VSOP |
| Supply Voltage | From 2 V to 6 V |
| Operating Temperature | -40°C to 85°C |
| Segment Drive Capability | Up to 40 segments |
| Backplane Drive Configuration | Static, 2, 3, or 4 backplane multiplexing |
| Display Bias Configuration | Static, 1/2, or 1/3 |
| Communication Interface | I2C-bus |
| Display Data Storage | 40 x 4-bit RAM |
| Moisture Sensitivity Level (MSL) | 3 (168 hours) |
Key Features
- Single-chip LCD controller and driver
- Supports up to twenty 7-segment alphanumeric characters, 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
- Internal LCD bias generation with voltage-follower buffers
- Auto-incremented display data loading across device subaddress boundaries
- Display memory bank switching in static and duplex drive modes
- Low power consumption and power-saving mode for battery-operated applications
- May be cascaded for large LCD applications (up to 2560 elements possible)
Applications
The PCF8576CT/1,518 is suitable for a variety of applications, including:
- LCD displays in consumer electronics, such as calculators, clocks, and other household appliances
- Industrial control panels and instrumentation
- Automotive displays and infotainment systems
- Battery-operated devices where low power consumption is critical
- Any system requiring a flexible and efficient LCD driver solution
Q & A
- What is the primary function of the PCF8576CT/1,518?
The PCF8576CT/1,518 is a peripheral device that interfaces with Liquid Crystal Displays (LCDs) and generates the drive signals for static or multiplexed LCDs.
- What types of LCD configurations can the PCF8576CT/1,518 support?
It can support up to four backplanes and up to 40 segments, including 7-segment and 14-segment alphanumeric characters, and graphics of up to 160 elements.
- What communication interface does the PCF8576CT/1,518 use?
The PCF8576CT/1,518 communicates via the two-line bidirectional I2C-bus.
- What is the operating temperature range of the PCF8576CT/1,518?
The operating temperature range is from -40°C to 85°C.
- Does the PCF8576CT/1,518 require external components for operation?
No, the PCF8576CT/1,518 does not require external components, even in multiple device applications.
- What is the moisture sensitivity level (MSL) of the PCF8576CT/1,518?
The MSL is 3 (168 hours).
- Can the PCF8576CT/1,518 be cascaded for larger LCD applications?
Yes, it can be cascaded for large LCD applications, supporting up to 2560 elements.
- What are some common applications of the PCF8576CT/1,518?
Common applications include consumer electronics, industrial control panels, automotive displays, and battery-operated devices.
- How does the PCF8576CT/1,518 manage power consumption?
The device features low power consumption and a power-saving mode for extremely low power consumption in battery-operated applications.
- What is the display bias configuration of the PCF8576CT/1,518?
The display bias configuration can be static, 1/2, or 1/3.
