CD4511BMS
CMOS BCD-to-7-Segment
Latch Decoder Drivers
December 1992
Features
Pinout
CD4511BMS
TOP VIEW
• High Voltage Type (20V Rating)
• High Output Sourcing Capability up to 25mA
• Input Latches for BCD Code Storage
• Lamp Test and Blanking Capability
B
1
2
3
4
5
6
7
8
16 VDD
15 f
C
• 7 Segment Outputs Blanked for BCD Input Codes
> 1001
LT
14 g
13 a
12 b
11 c
10 d
BL
• 100% Tested for Quiescent Current at 20V
• 5V, 10V and 15V Parametric Ratings
LE/STROBE
D
A
• Maximum Input Current of 1µA at 18V Over Full Pack-
age Temperature Range; 100nA at 18V and +25oC
9
e
VSS
Applications
• Driving Common Cathode LED Displays
• Multiplexing with Common Cathode LED Displays
• Driving Incandescent Displays
Functional Diagram
• Driving Low Voltage Fluorescent Displays
LT
3
13
12
11
10
9
Description
a
b
c
d
e
f
7
A
CD4511BMS is a BCD-to-7-Segment latch decoder drivers
constructed with CMOS logic and n-p-n bipolar transistor
output devices on a single monolithic structure. These
devices combine the low quiescent power dissipation and
high noise immunity features of Intersil CMOS with n-p-n
bipolar output transistors capable of sourcing up to 25mA.
This capability allows the CD4511BMS types to drive LED’s
and other displays directly.
D
E
C
O
D
E
R
D
R
I
V
E
R
1
L
A
T
C
H
B
C
D
7
BCD
INPUTS
SEGMENT
OUTPUTS
2
6
15
14
g
5
4
Lamp Test (LT), Blanking (BL), and Latch Enable or Strobe
inputs are provided to test the display, shut off or intensity
modulate it, and store or strobe a BCD code, respectively.
Several different signals may be multiplexed and displayed
when external multiplexing circuitry is used.
LE/STROBE
BL
VSS = 8
VDD = 16
These devices are similar to the type MC14511.
The CD4511BMS is supplied in these 16-lead outline
packages:
7-Segment Display
Braze Seal DIP
Frit Seal DIP
Ceramic Flatpack
H4W
H2R
H6W
a
g
f
b
e
c
d
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
File Number 3339
1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999
7-1169