Semiconductor Components Industries, LLC, 2000
March, 2000 – Rev. 3
1 Publication Order Number:
MC14511B/D
MC14511B
BCD-To-Seven Segment
Latch/Decoder/Driver
The MC14511B BCD–to–seven segment latch/decoder/driver is
constructed with complementary MOS (CMOS) enhancement mode
devices and NPN bipolar output drivers in a single monolithic structure.
The circuit provides the functions of a 4–bit storage latch, an 8421
BCD–to–seven segment decoder, and an output drive capability. Lamp
test (L T
), blanking (BI), and latch enable (LE) inputs are used to test the
display, to turn–off or pulse modulate the brightness of the display, and
to store a BCD code, respectively. It can be used with seven–segment
light–emitting diodes (LED), incandescent, fluorescent, gas discharge,
or liquid crystal readouts either directly or indirectly.
Applications include instrument (e.g., counter, DVM, etc.) display
driver, computer/calculator display driver, cockpit display driver, and
various clock, watch, and timer uses.
• Low Logic Circuit Power Dissipation
• High–Current Sourcing Outputs (Up to 25 mA)
• Latch Storage of Code
• Blanking Input
• Lamp Test Provision
• Readout Blanking on all Illegal Input Combinations
• Lamp Intensity Modulation Capability
• Time Share (Multiplexing) Facility
• Supply Voltage Range = 3.0 V to 18 V
• Capable of Driving Two Low–power TTL Loads, One Low–power
Schottky TTL Load or Two HTL Loads Over the Rated Temperature
Range
• Chip Complexity: 216 FETs or 54 Equivalent Gates
• Triple Diode Protection on all Inputs
MAXIMUM RATINGS (Voltages Referenced to V
SS
)
(2.)
Symbol Parameter Value Unit
V
DD
DC Supply Voltage Range –0.5 to +18.0 V
V
in
Input Voltage Range, All Inputs –0.5 to VDD + 0.5 V
I DC Current Drain per Input Pin 10 mA
P
D
Power Dissipation,
per Package
(3.)
500 mW
T
A
Operating Temperature Range –55 to +125 °C
T
stg
Storage Temperature Range –65 to +150 °C
I
OHmax
Maximum Output Drive Current
(Source) per Output
25 mA
P
OHmax
Maximum Continuous Output
Power (Source) per Output
(4.)
50 mA
2. Maximum Ratings are those values beyond which damage to the device
may occur.
3. Temperature Derating:
Plastic “P and D/DW” Packages: – 7.0 mW/_C From 65_C T o 125_C
4. P
OHmax
= IOH (VDD – VOH)
http://onsemi.com
A = Assembly Location
WL or L = Wafer Lot
YY or Y = Year
WW or W = Work Week
Device Package Shipping
ORDERING INFORMATION
MC14511BCP PDIP–16 2000/Box
MC14511BD SOIC–16 48/Rail
MC14511BDW SOIC–16 47/Rail
1. For ordering information on the EIAJ version of
the SOIC packages, please contact your local
ON Semiconductor representative.
MARKING
DIAGRAMS
1
16
PDIP–16
P SUFFIX
CASE 648
MC1451 1BCP
AWLYYWW
MC1451 1BDWR2 SOIC–16 1000/Tape & Reel
SOIC–16
DW SUFFIX
CASE 751G
1
16
14511B
AWLYYWW
SOEIAJ–16
F SUFFIX
CASE 966
1
16
MC14511B
AWLYWW
SOIC–16
D SUFFIX
CASE 751B
1
16
14511B
AWLYWW
MC1451 1BF SOEIAJ–16 See Note 1.
MC1451 1BFEL SOEIAJ–16 See Note 1.