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UPD7225 Dataheets PDF



Part Number UPD7225
Manufacturers NEC
Logo NEC
Description PROGRAMMABLE LCD CONTROLLER/DRIVER
Datasheet UPD7225 DatasheetUPD7225 Datasheet (PDF)

DATA SHEET MOS INTEGRATED CIRCUIT µPD7225 PROGRAMMABLE LCD CONTROLLER/DRIVER The µPD7225 is a software-programmable LCD (Liquid Crystal Display) controller/driver. The µPD7225 can be serially interfaced with the CPU in a microcomputer and can directly drive 2, 3, or 4-time division LCD. The µPD7225 contains a segment decoder which can generate specific segment patterns. In addition, the µPD7225 can be used to control on/off (blinking) operation of a display. FEATURES • Can directly drive LCD.

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DATA SHEET MOS INTEGRATED CIRCUIT µPD7225 PROGRAMMABLE LCD CONTROLLER/DRIVER The µPD7225 is a software-programmable LCD (Liquid Crystal Display) controller/driver. The µPD7225 can be serially interfaced with the CPU in a microcomputer and can directly drive 2, 3, or 4-time division LCD. The µPD7225 contains a segment decoder which can generate specific segment patterns. In addition, the µPD7225 can be used to control on/off (blinking) operation of a display. FEATURES • Can directly drive LCD • Programmable time-division multiplexing • • Static drive Divide-by-2, 3, or -4 time division multiplexing 7-segment Divide-by-4 Divide-by-3 Divide-by-2 time division ............... 16 digits time division ............... 10 2/3 digits time division ............... 8 digits • Number of digits displayed • Static................................................. 4 digits • 14-segment Divide-by-4 time division ............... 8 digits • Bias method Static, 1/2, 1/3 • Segment decoder output • • 7-segment : Numeric characters 0 to 9, six symbols 14-segment : 36 alphanumeric characters, 13 symbols • Blinking operation • Multi-chip configuration possible • 8-bit serials interface 75X series and 78K series compatible • CMOS • Single power supply ORDERING INFORMATION Part Number Package 52-pin plastic QFP (14 × 14 mm) 52-pin plastic QFP (straight) ( 56-pin plastic QFP (10 × 10 mm) 52-pin plastic QFP (14 × 14 mm) 14 mm) µPD7225G00 µPD7225G01 µPD7225GB-3B7 µPD7225GC-AB6 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. S14308EJ6V0DS00 (6th edition) (O.D. No. IC-1555) Date Published June 1999 N CP (K) Printed in Japan The mark shows major revised points. © 1986, 1999 µPD7225 PIN CONFIGURATION: (Top View) µPD7225G00 µPD7225G01 µPD7225GC-AB6 52-pin plastic QFP (14 × 14 mm) 52-pin plastic QFP (straight) ( 14 mm) 52-pin plastic QFP (14 × 14 mm) CL1 S31 S30 S29 S28 S27 S26 S25 S24 S23 S22 S21 S20 40 39 38 37 36 35 34 33 32 31 30 29 28 15 16 17 18 19 20 21 22 23 24 25 27 26 52 CL2 /SYNC VLC1 VLC2 VLC3 VSS VDD /SCK SI /CS /BUSY C, /D /RESET 1 2 3 4 5 6 7 8 9 10 11 12 13 14 51 50 49 48 47 46 45 44 43 42 41 S19 S18 S17 S16 S15 S14 VDD S13 S12 S11 S10 S9 S8 NC COM0 COM1 COM2 COM3 S0 S1 S2 S3 S4 S5 S6 SI /SCK C, /D /CS /BUSY SYNC S0-S31 NC Remark : Serial Input : Serial Clock : Command/Data : Chip Select : Busy : Sync : Segment : Non-connection /××× indicates active low signal. CL1 CL2 RESET VDD VSS IC : External Resistor 1 (External Clock) : External Resistor 2 : Reset : Power Supply : Ground : Internally Connected VLC1-VLC3 : Power Supply For LCD Drive COM0-COM3 : Common 2 Data Sheet S14308EJ6V0DS00 S7 µPD7225 µPD7225GB-3B7 56-pin plastic QFP (10 × 10 mm) S19 S18 S17 S16 S15 S14 S13 S1.


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