Overview
The PCF8551ATT/A is an ultra-low-power LCD segment driver manufactured by NXP Semiconductors. This device is part of the PCF8551 series and is designed to drive LCD displays with a high level of efficiency and versatility. It features a single-chip design that integrates an LCD controller and driver, making it suitable for a wide range of applications, including metering equipment, consumer healthcare devices, battery-operated devices, and measuring equipment.
Key Specifications
| Attribute | Specification |
|---|---|
| Package Type | TSSOP48 (Thin Shrink Small Outline Package) |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -40°C to 85°C |
| Packaging | Tape & Reel |
| Lead Free | Yes |
| RoHS Compliance | Yes |
| Power Supply Ranges | 1.8 V to 5.5 V for VLCD and VDD |
| Interface Options | I2C (400 kHz) or SPI (5 MHz) |
| Segment and Backplane Drivers | 36 segment drivers, 4 backplane drivers |
Key Features
- Single-chip LCD controller and driver with internal oscillator, bias generation, instruction decoding, and display controller.
- Selectable backplane drive configuration: static, 2, 3, or 4 backplane multiplexing.
- Selectable display bias configuration: static, 1/2, or 1/3.
- Internal LCD bias generation with buffers.
- 36 segment drives capable of driving up to 18 7-segment numeric characters, up to 9 14-segment alphanumeric characters, or any graphics of up to 144 segments/elements.
- Auto-incrementing display data and instruction loading.
- Versatile blinking modes.
- Independent supplies of VLCD and VDD.
- Ultra-low power consumption.
- Internally generated or externally supplied clock signal.
Applications
- Metering equipment.
- Consumer healthcare devices.
- Battery-operated devices.
- Measuring equipment.
Q & A
- What is the PCF8551ATT/A used for?
The PCF8551ATT/A is used as an ultra-low-power LCD segment driver for various applications including metering equipment, consumer healthcare devices, battery-operated devices, and measuring equipment.
- What are the operating temperature ranges for the PCF8551ATT/A?
The operating temperature range for the PCF8551ATT/A is -40°C to 85°C.
- What types of interfaces does the PCF8551ATT/A support?
The PCF8551ATT/A supports both I2C (400 kHz) and SPI (5 MHz) interfaces.
- How many segment and backplane drivers does the PCF8551ATT/A have?
The PCF8551ATT/A has 36 segment drivers and 4 backplane drivers.
- Is the PCF8551ATT/A RoHS compliant?
Yes, the PCF8551ATT/A is RoHS compliant and lead-free.
- What is the power supply range for the PCF8551ATT/A?
The power supply ranges for the PCF8551ATT/A are 1.8 V to 5.5 V for both VLCD and VDD.
- Does the PCF8551ATT/A support internal or external clock signals?
The PCF8551ATT/A supports both internally generated and externally supplied clock signals.
- What types of display configurations are supported by the PCF8551ATT/A?
The PCF8551ATT/A supports static, 1/2, or 1/3 display bias configurations and static, 2, 3, or 4 backplane multiplexing configurations.
- How many characters or segments can the PCF8551ATT/A drive?
The PCF8551ATT/A can drive up to 18 7-segment numeric characters, up to 9 14-segment alphanumeric characters, or any graphics of up to 144 segments/elements.
- What is the package type of the PCF8551ATT/A?
The PCF8551ATT/A comes in a TSSOP48 (Thin Shrink Small Outline Package) with 48 leads.
