MC14499

MOTOROLA SEMICONDUCTOR TECHNICAL DATA Order this document by MC14499/D MC14499 7-Segment LED Display Decoder/Driver with Serial Interface CMOS The MC14499 is a 7–segment alphanumeric LED decoder/driver with a serial interface port to provide communication with CMOS microprocessors and microcomputers. This device features NPN output drivers which allow interfacing to common cathode LED displays through external series resistors. High–Current Segment Drivers On–Chip CMOS MPU compatible Input Levels Wide Operating Voltage Range: 4.5 to 6.5 V Operating Temperature Range: 0 to 70°C Drives Four Characters with Decimal Points Also See MC14489 20 1 18 1 P SUFFIX PLASTIC DIP CASE 707 DW SUFFIX SOG PACKAGE CASE 751D ORDERING INFORMATION MC14499P MC14499DW Plastic DIP SOG Package PIN ASSIGNMENTS PLASTIC DIP d 1 2 3 4 5 6 7 8 9 18 17 16 15 14 13 12 11 10 VDD e f g h CLK ENB I II BLOCK DIAGRAM DECIMAL POINT D4 Q1 4 BITS C c b a DATA OSC IV DATA CLK D Q 4 BITS C* D20 Q5 16–BIT SHIFT REGISTER C 4 4 4 4 III C LATCH 2:1 MUX MUX SEGMENT DRIVERS h g f e d c b a I II III IV VSS C ENB 4 LATCH SOG PACKAGE d SEGMENT OUTPUTS c b a DATA OSC CHARACTER SELECTORS IV III VSS NC 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 VDD e f g h CLK ENB I II NC 4 4 4 MULTIPLEXER B4 A B 4 SEGMENT DECODER 7 OSC OSCILLATOR DECODER 4 SCANNER BUFFERS * Transparent Latch NC = NO CONNECTION SAME AS IN DL130/D R1 © Motorola, Inc. 1995 MOTOROLA MC14499 1 ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ...