Semiconductor Components Industries, LLC, 2002
February, 2002 – Rev. 5 1Publication 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 N PN bipolar output drivers i n a s ingle m onolithic s tructure.
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 (LT), b lanking ( BI), and l atch e nable ( LE) i nputs a re u sed t o t est t he
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 VSS) (Note 2)
Symbol Parameter Value Unit
VDD DC Supply Voltage Range –0.5 to +18.0 V
Vin Input Voltage Range, All Inputs –0.5 to VDD + 0.5 V
IDC Current Drain per Input Pin 10 mA
PDPower Dissipation,
per Package (Note 3) 500 mW
TAOperating Temperature Range –55 to +125 °C
Tstg Storage Temperature Range –65 to +150 °C
IOHmax Maximum Output Drive Current
(Source) per Output 25 mA
POHmax Maximum Continuous Output
Power (Source) per Output
(Note 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 65C To 125C
4. POHmax = IOH (VDD – VOH)
http://onsemi.com
A = Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, 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
MC14511BCP
AWLYYWW
MC14511BDWR2 SOIC–16 1000/Tape & Reel
SOIC–16
DW SUFFIX
CASE 751G
1
16
14511B
AWLYYWW
SOEIAJ–16
F SUFFIX
CASE 966
1
16
MC14511B
ALYW
SOIC–16
D SUFFIX
CASE 751B 1
16
14511B
AWLYWW
MC14511BF SOEIAJ–16 See Note 1
MC14511BFEL SOEIAJ–16 See Note 1