Overview
The PCF85176T/1Y is a versatile peripheral device designed by NXP USA Inc. to interface with a wide variety of Liquid Crystal Displays (LCDs). This component is particularly suited for low multiplex rate LCDs and can be used with both static and multiplexed displays. 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 | Value |
|---|---|
| Part Number | PCF85176T/1Y |
| Manufacturer | NXP USA Inc. |
| Description | Dot Matrix Display LCD Driver |
| Package / Case | TSSOP-56 |
| Interface | I²C |
| Digits or Characters | 10 Characters, 20 Characters, 160 Elements |
| Supply Voltage | 1.8V ~ 5.5V |
| Supply Current - Max | 7 µA |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Number of Segments | 40 Segment |
| Maximum Clock Frequency | 400 kHz |
| Power Dissipation | 100 mW |
| Moisture Sensitive | Yes |
Key Features
- Single Chip LCD Controller and Driver: The PCF85176T/1Y integrates both the controller and driver functions, making it a comprehensive solution for LCD applications.
- Selectable Backplane Drive Configuration: Supports static, 2, 3, or 4 backplane multiplexing, offering flexibility in display configurations.
- Selectable Display Bias Configuration: Allows for static, 1/2, or 1/3 display bias configurations.
- Internal LCD Bias Generation: Includes voltage-follower buffers for internal LCD bias generation.
- I²C-Bus Communication: Communicates via the two-line bidirectional I²C-bus, minimizing communication overheads.
- Display RAM with Auto-Incremented Addressing: Enhances efficiency by allowing auto-incremented addressing and hardware subaddressing.
- Cascading Capability: Can be easily cascaded for larger LCD applications.
Applications
- LCD Displays in Consumer Electronics: Suitable for use in various consumer electronics such as calculators, remote controls, and other handheld devices.
- Industrial Control Panels: Can be used in industrial control panels and displays where low power consumption and reliability are crucial.
- Medical Devices: Applicable in medical devices that require clear and reliable display outputs.
- Automotive Systems: Used in automotive systems for dashboard displays and other LCD-based interfaces.
Q & A
- What is the primary function of the PCF85176T/1Y?
The PCF85176T/1Y is a peripheral device designed to interface with and drive Liquid Crystal Displays (LCDs) with low multiplex rates.
- What type of package does the PCF85176T/1Y come in?
The PCF85176T/1Y comes in a TSSOP-56 package.
- What is the operating voltage range of the PCF85176T/1Y?
The operating voltage range is from 1.8V to 5.5V.
- What is the maximum operating temperature of the PCF85176T/1Y?
The maximum operating temperature is +85°C.
- How does the PCF85176T/1Y communicate with microcontrollers?
The PCF85176T/1Y communicates via the two-line bidirectional I²C-bus.
- What is the maximum number of segments the PCF85176T/1Y can drive?
The PCF85176T/1Y can drive up to 40 segments.
- Can the PCF85176T/1Y be cascaded for larger LCD applications?
Yes, the PCF85176T/1Y can be easily cascaded for larger LCD applications.
- What are the selectable backplane drive configurations for the PCF85176T/1Y?
The PCF85176T/1Y supports static, 2, 3, or 4 backplane multiplexing configurations.
- What is the power dissipation of the PCF85176T/1Y?
The power dissipation is 100 mW.
- Is the PCF85176T/1Y moisture sensitive?
Yes, the PCF85176T/1Y is moisture sensitive.
