UPD16686 Datasheet, PDF (1/99 Pages) NEC – 1/128 DUTY LCD CONTROLLER/DRIVER WITH FOUR-LEVEL GRAY SCALE, ON-CHIP RAM

DATA SHEET
MOS INTERGRATED CIRCUIT
µPD16686, 16687
1/128 DUTY LCD CONTROLLER/DRIVER WITH FOUR-LEVEL GRAY SCALE, ON-CHIP RAM
DESCRIPTION
The µPD16686 and 16687 are controller/drivers which include display RAM for full-dot LCDs that can provide a four-level
gray scale display. These ICs are able to drive full-dot LCDs that contain up to 128 x 128 dots.
FEATURES
• µPD16686: COM outputs configured on both sides of chip
• µPD16687: COM outputs configured on one side of chip
• LCD controller/driver with on-chip display RAM
• Can operate using single power supply (logic system) in range from +1.7 to +3.6 V.
• On-chip booster: Switchable from x2 to x9 modes
• Dot display RAM: 128 x 128 x 2 bits
• Selection of four levels of gray scales from among 33 possible levels (four-frame rate control + 8 pulse width
modulation)
• Full dot outputs: 128 segment outputs and 128 common outputs
• Static icon outputs: 20 segment outputs and 2 common outputs (same signal is output)
• Serial data input and 8-bit parallel data input (i80 series interface and M68 series interface)
• On-chip voltage divider resistor
• Selectable bias levels: 1/12 to 1/7 bias (normal display), 1/6 or 1/5 bias (partial display)
• Duty settings: 1/128 to 1/1 duty
• On-chip oscillator
ORDERING INFORMATION
Part Number
µ PD16686P
µ PD16686W
µ PD16687P
µ PD16687W
Package
Chip
Wafer
Chip
Wafer
Remark Purchasing the chip/wafer entails the exchange of documents such as a separate memorandum or product
quality, so please contact one of our sales representative.
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for
availability and additional information.
Document No. S15548EJ1V0DS00 (1st Edition)
Date Published July 2001 NS CP(K)
The mark  shows major revised points.
1999, 2001