Overview
The PCF85134HL/1,118, produced by NXP USA Inc., is a versatile and highly integrated liquid crystal display (LCD) controller and driver. This device is designed to interface with a wide range of LCDs, including those with low multiplex rates, and can drive up to 60 segment outputs. It is compatible with most microcontrollers and communicates via a two-line bidirectional I2C-bus, minimizing communication overhead through features like display RAM with auto-incremented addressing and hardware subaddressing. The PCF85134HL/1,118 is suitable for various LCD applications, including static and multiplexed displays, and can be easily cascaded for larger display configurations.
Key Specifications
| Parameter | Specification |
|---|---|
| Package Type | 80-pin LQFP (Low Profile Quad Flat Package) |
| Package Dimensions | 12 mm x 12 mm x 1.4 mm |
| Operating Temperature | -40°C to +85°C |
| Logic Power Supply Range | 1.8 V to 5.5 V |
| LCD Supply Range | 2.5 V to 6.5 V |
| Number of Segment Outputs | 60 |
| Multiplexing Capability | Up to 1:4 |
| Interface | I2C-bus (400 kHz) |
| Display Data Storage RAM | 60 x 4-bit |
| Power Consumption | Low power consumption (typical supply current: 8 μA) |
| RoHS Compliance | ROHS3 Compliant |
Key Features
- Single-chip LCD controller and driver
- Selectable backplane drive configurations: static, 2, 3, or 4 backplane multiplexing
- Supports up to 60 segment outputs, allowing for various display configurations such as 30 7-segment alphanumeric characters, 15 14-segment alphanumeric characters, or any graphics up to 240 elements
- Cascading supported for larger LCD applications
- Internal LCD bias generation with voltage follower buffers
- Selectable display bias configurations: static, 1/2, or 1/3
- No external components required
- Display memory bank switching in static and duplex drive mode
- Versatile blinking modes
- Silicon gate CMOS process
Applications
The PCF85134HL/1,118 is suitable for a wide range of applications that require LCD displays, including:
- Industrial control panels
- Medical devices
- Consumer electronics
- Automotive displays
- Smart home devices
- Any system requiring a high degree of flexibility in LCD display configurations
Q & A
- What is the PCF85134HL/1,118 used for?
The PCF85134HL/1,118 is used as an LCD controller and driver to interface with and drive various types of LCD displays.
- What is the maximum number of segment outputs supported by the PCF85134HL/1,118?
The device supports up to 60 segment outputs.
- What are the operating temperature ranges for the PCF85134HL/1,118?
The operating temperature range is from -40°C to +85°C.
- What is the logic power supply range for the PCF85134HL/1,118?
The logic power supply range is from 1.8 V to 5.5 V.
- Does the PCF85134HL/1,118 require external components?
No, the PCF85134HL/1,118 does not require external components.
- What interface does the PCF85134HL/1,118 use for communication?
The device uses a two-line bidirectional I2C-bus for communication.
- Can the PCF85134HL/1,118 be cascaded for larger LCD applications?
- What is the typical power consumption of the PCF85134HL/1,118?
The typical power consumption is low, with a supply current of 8 μA.
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- What types of LCD displays can the PCF85134HL/1,118 drive?
The device can drive static or multiplexed LCDs with up to four backplanes and up to 60 segments.
