UPD16640C Datasheet PDF - NEC
Part Number | UPD16640C | |
Description | 300/309-OUTPUT TFT-LCD SOURCE DRIVER 64 GRAY SCALE | |
Manufacturers | NEC | |
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MOS INTEGRATED CIRCUIT
µ PD16640C
300/309-OUTPUT TFT-LCD SOURCE DRIVER (64 GRAY SCALE)
DESCRIPTION
The µ PD16640C is a source driver for TFT-LCD 64-gray scale displays. Its logic circuit operates at 3.3 V and the
driver circuit operates at 3.3 or 5.0 V (selectable). The input data is digital data at 6 bits x 3 dots, and 260,000 colors
can be displayed in 64-value outputs γ-corrected by the internal D/A converter and 11 external power supplies.
The clock frequency is 55 MHz MIN. By switching over the number of outputs between 300 and 309, the
µ PD16640C can be used in TFT-LCD panels conforming to the SVGA/XGA standards.
FEATURES
• CMOS level input
• Number of outputs selectable (Osel = H : 300 outputs, Osel = L : 309 outputs)
• 6 bits (gray scale data) x 3 dots input
• 64-value output by 11 external power supplies and internal D/A converter
• Output dynamic range : VSS2 + 0.1 V to VDD2 − 0.1 V
• High-speed data transfer: fMAX.=55 MHz MIN.(internal data transfer speed when VDD1 = 3.0 V)
• Precharge-less output buffer
• Level of γ-corrected power supply can be inverted.
• Input data inversion function (INV)
• Logic power supply (VDD1) : 3.3 V ± 0.3 V
• Driver power supply (VDD2) : 3.3 V ± 0.3 V (Vsel = H)
5.0 V ± 0.5 V (Vsel = L)
ORDERING INFORMATION
Part Number
µ PD16640CN-xxx
Package
TCP (TAB package)
Remark The TCP’s external shape is customized. To order your TCP’s external shape, please contact a NEC
salesperson.
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. S11269EJ1V1DS00 (1st edition)
Date Published June 1999 NS CP (K)
Printed in Japan
©
1999
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µ PD16640C
4. RELATION BETWEEN INPUT DATA AND OUTPUT VOLTAGE VALUE
The 11 major points on the γ-characteristic curve of the LCD panel are arbitrarily set by external power supplies V0
through V10. If the display data is 00H or 3FH, gray scale voltage V0 or V10 is output. If the display data is in the
range 01H to 3EH, the high-order 3 bits select an external powers pair Vn+1, Vn. The low-order 3 bits evenly divide
the range of Vn+1, Vn into eight segments by means of D/A conversion (however, the ranges from V9 to V8 and from V2
to V1 are divided into seven segments) to output a 64-grayscale voltage.
DX5 (MSB)
DX4
DX3 DX2 DX1 DX0 (LSB)
High-order 3 bits : γ-corrected power selected
(Vn+1-Vn)
Low-order 3 bits : 3-bit D/A
(range Vn-Vn+1 is divided into 7 or 8 segments)
DX5
DX4
DX3
000
001
010
011
100
101
110
111
Vn+1-Vn
V1-V2
V2-V3
V3-V4
V4-V5
V5-V6
V6-V7
V7-V8
V8-V9
Vn 1
2
3
4
5
6
7
8
Vn+1
000 001 010 011 100 101 110 111
DX2-DX0
0.1 V
VDD2
V0
V1
V2
V3
V4
V5
V6
V7
V8
V9
Figure 4-1. Relation between Input Data and γ -corrected Voltage
gray scale supply specified
by 00H
7 segments
8 segments
8 segments
8 segments
8 segments
8 segments
8 segments
7 segments
V10 gray scale supply specified
0.1 V
VSS2
0 7 F 17 1F 27 2F 37 3F
by 3FH
Input data (HEX)
Data Sheet S11269EJ1V1DS00
5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for UPD16640C electronic component. |
Information | Total 16 Pages | |
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Download | [ UPD16640C.PDF Datasheet ] |
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