PCF2113x

General description

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.

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 V_LCD, independent of V_DD, programmable by instruction (external supply also possible)
  • Temperature compensation of on-chip generated V_LCD: -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 V_DD1 - V_SS1 = 1.8 V to 5.5 V (chip may be driven with two battery cells)
• V_LCD generator supply voltage range V_DD2 - V_SS2 = 2.2 V to 4.0 V
• Display supply voltage range V_LCD - V_SS2 = 2.2 V to 6.5 V
• Direct mode to save current consumption for Icon mode and MUX 1:9 (depending on V_DD2 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 V_LCD can be used and the switching frequency of the LCD outputs is reduced. In most applications it is possible to use V_DD as V_LCD.

Products/packages

Quality/reliability/chemical content

Quality and reliability disclaimer

Pricing/ordering/availability

Applications

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

Block diagrams/pinning

Design support

Support Documents

75016543; An industry-leading portfolio of cost-effective, power-saving solutions for major home appliances (2008-06-01)

Parametrics/similar products

Similar products
PCF2113x links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.

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Disclaimers

• General product disclaimer
• Quality and reliability disclaimer