MOTOROLA MC14499 Data Sheet
Summary
The MC14499 is a specialized 7-segment alphanumeric LED decoder/driver designed to provide seamless serial interfacing with CMOS microprocessors and computing systems. This device features robust NPN output drivers capable of controlling four character displays, including integrated decimal points. This manual serves as an essential technical guide for electronics engineers and designers, detailing the full range of electrical characteristics, operational parameters, and wiring specifications needed to successfully integrate high-performance LED display interfaces into microcomputer projects.
Page 1 Text Content
Order this document SEMICONDUCTOR TECHNICAL DATA by MC14499/D
P SUFFIX PLASTIC DIP
$" " CASE 707 CMOS
The MC14499 is a 7–segment alphanumeric LED decoder/driver with a serial DW SUFFIX interface port to provide communication with CMOS microprocessors and SOG PACKAGE CASE 751D
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 ORDERING INFORMATION
CMOS MPU compatible Input Levels MC14499P Plastic DIP Wide Operating Voltage Range: 4.5 to 6.5 V MC14499DW SOG Package Operating Temperature Range: 0 to 70°C Drives Four Characters with Decimal Points Also See MC14489
PIN ASSIGNMENTS PLASTIC DIP
BLOCK DIAGRAM
AR AC TE DECIMAL SE EN
SE LE TO POINT TP TS
DATA D20 Q5 Q1D4 DATA h14
16–BIT SHIFT REGISTER 4 BITS
OSC CLK
IV ENB
4 BITS III C*
VSS II
LATCH LATCH
SOG PACKAGE
SEGMENT
MULTIPLEXER MUX DRIVERS
SEGMENT DATA DECODER
OSC CLK
IV ENB
OSC OSCILLATOR
SCANNER II III
DECODER
BUFFERS III
VSS II
NC NC
Transparent Latch
NC = NO CONNECTION
SAME AS IN DL130/D R1
Motorola, Inc. 1995 MC14499MOTOROLA
Page Summary Contents For MOTOROLA MC14499 Data Sheet
Manual Details
| Brand | Motorola |
|---|---|
| Pages | 8 |
| File Size | 161.74 KB |
| Published | June 06, 2026 |
Enter the captcha to get the download link:
Frequently Asked Questions
What is the operating voltage range for this device?
The functional operation should be restricted to V = 4.5 to 6.5 V.
Does the MC14499 support multi-character displays and decimals?
Yes, it drives four characters with decimal points and supports cascading up to (n x 20) bits.
What components are required when using the NPN output drivers?
External series resistors are needed for interfacing to common cathode LED displays.
What is the recommended maximum operating temperature range?
The circuit operates properly in a range of -65 to +150 °C.