LCD Controllers/Drivers

PCF2113X

The PCF2113x is a low-power CMOS LCD controller and driver, designed to drive a dot matrix LCD display of 2 lines of 12 characters or 1 line of 24 characters with 5 x 8 dot format. All necessary functions for the display are provided in a single chip, including on-chip generation of LCD bias voltages, resulting in a minimum of external components and lower system current consumption. The PCF2113x interfaces to most microcontrollers via a 4-bit or 8-bit bus or via the 2-wire I²C-bus. The chip contains a character generator and displays alphanumeric and kana (Japanese) characters.

The letter 'x' in PCF2113x characterizes the built-in character set. Various character sets can be manufactured on request.

Product Details

Select a section:

Block Diagram

Block diagram: PCF2113AU, PCF2113DH, PCF2113DU, PCF2113EU, PCF2113WU

Get diagram PDF

Features

  • Single-chip LCD controller/driver
  • 2-line display of up to 12 characters + 120 icons, or 1-line display of up to 24 characters + 120 icons
  • 5 x 7 character format plus cursor; 5 x 8 for kana (Japanese) and user-defined symbols
  • Icon mode for e.g. additional segment display section: reduced current consumption while displaying icons only
  • Icon blink function
  • Very low current consumption (20 uA to 200 uA):
    • Icon mode: <25 uA
    • Power-down mode: < 2 uA
  • On-chip:
    • Configurable 4, 3 or 2 voltage multiplier, generating LCD supply voltage VLCD, independent of VDD, programmable by instruction (external supply also possible)
    • Temperature compensation of on-chip generated VLCD: -0.16 pct/K to -0.24 pct/K (programmable by instruction)
    • Generation of intermediate LCD bias voltages
    • Oscillator requires no external components (external clock also possible)
  • Display data RAM: 80 characters
  • Character generator ROM: 240 characters of 5 x 8 dots
  • Character generator RAM: 16 characters of 5 x 8 dots; 3 characters used to drive 120 icons, 6 characters used if icon blink feature is used in application
  • 4-bit or 8-bit parallel bus and 2-wire I²C-bus interface
  • 18 row and 60 column outputs
  • Multiplex rates (MUX) 1:18 (for normal operation), 1:9 (for single-line operation) and 1:2 (for Icon-only mode)
  • Uses common 11 code instruction set (extended)
  • Logic supply voltage range VDD1 - VSS1 = 1.8 V to 5.5 V (chip may be driven with two battery cells)
  • VLCD generator supply voltage range VDD2 - VSS2 = 2.2 V to 4.0 V
  • Display supply voltage range VLCD - VSS2 = 2.2 V to 6.5 V
  • Direct mode to save current consumption for Icon mode and MUX 1:9 (depending on VDD2 and LCD liquid properties)
  • CMOS compatible
  • Remark: Icon mode is a way to save current. When only icons are displayed (i.e. only the lower two rows are active), a much lower operating voltage VLCD can be used and the switching frequency of the LCD outputs is reduced. In most applications it is possible to use VDD as VLCD.

Target Applications

  • Telecom equipment
  • Point-of-sale terminals
  • Portable instruments

Design Resources

Select a section:

Engineering Services

2 engineering services

To find a complete list of our partners that support this product, please see our Partner Marketplace.

Support

What do you need help with?

Search