MC14499 Datasheet, PDF (1/8 Pages) Motorola, Inc – 7-Segment LED Display Decoder/Driver with Serial Interface

MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
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
BLOCK DIAGRAM
DATA
CLK
ENB
DQ
4 BITS
C*
D20
Q5
16–BIT SHIFT REGISTER
C
4 4 44
C
LATCH
DECIMAL
POINT
D4 Q1
4 BITS
C
C
LATCH
4 4 44
MULTIPLEXER
MUX
AB
B4
SEGMENT
4
DECODER
OSC OSCILLATOR
DECODER
* Transparent Latch
2:1
MUX
7
h
g
f
SEGMENT e
DRIVERS d
c
b
a
I
4
SCANNER II
BUFFERS _III
IV
Order this document
by MC14499/D
MC14499
18
1
P SUFFIX
PLASTIC DIP
CASE 707
20
1
DW SUFFIX
SOG PACKAGE
CASE 751D
ORDERING INFORMATION
MC14499P Plastic DIP
MC14499DW SOG Package
PIN ASSIGNMENTS
PLASTIC DIP
d1
c2
18 VDD
17 e
b3
16 f
a4
15 g
DATA 5
14 h
OSC 6
13 CLK
IV 7
12 ENB
III 8
11 I
VSS 9
10 II
SOG PACKAGE
d1
c2
b3
a4
DATA 5
OSC 6
IV 7
III 8
VSS 9
NC 10
20 ^VDD
19 ^e
18 ^f
17 g
16 ^h
15 CLK
14 ENB
13 I
12 II
11 NC
NC = NO CONNECTION
SAME AS IN DL130/D R1
©_MOMo_Tto_Oro_Rla,_OIn_Lc._A1995
MC14499
1