File name 4558.pdfMOTOROLA
SEMICONDUCTOR TECHNICAL DATA
MC14558B BCD-to-Seven Segment Decoder
The MC14558B decodes 4bit binary coded decimal data dependent on the state of auxiliary inputs, Enable and RBI, and provides an activehigh sevensegment output for a display driver. An auxiliary input truth table is shown, in addition to the BCD to sevensegment truth table, to indicate the functions available with the two auxiliary inputs. Leading Zero blanking is easily obtained with an external flipflop in time division multiplexed systems displaying most significant decade first. · · · · · · Supply Voltage Range = 3.0 Vdc to 18 Vdc Segment Blanking for All Illegal Input Combinations Lamp Test Function Capability for Suppression of NonSignificant Zeros Lamp Intensity Function Capable of Driving Two Lowpower TTL Loads. One Lowpower Schottky TTL Load or Two HTL Loads Over the Rated Temperature Range
L SUFFIX CERAMIC CASE 620
P SUFFIX PLASTIC CASE 648
D SUFFIX SOIC CASE 751B
ORDERING INFORMATION
MC14XXXBCP MC14XXXBCL MC14XXXBD Plastic Ceramic SOIC
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
MAXIMUM RATINGS* (Voltages referenced to VSS)
Rating Symbol VDD Vin Iin TA PD Tstg DC Supply Voltage Value Unit V V 0.5 to + 18 Input Voltage, All Inputs 0.5 to VDD + 0.5 ± 10 55 to + 125 500 65 to + 150 DC Input Voltage, per Pin Operating Temperature Range Power Dissipation, per Package Storage Temperature Range mAdc
TA = 55° to 125°C for all packages.
PIN ASSIGNMENT
B C ENABLE RBO RBI D A VSS 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VDD f g a b c d e e d f a g b c
_C
mW
_C
* Maximum Ratings are those values beyond which damage to the device may occur. Temperature Derating: Plastic "P and D/DW" Packages: 7.0 mW/_C From 65_C To 125_C Ceramic "L" Packages: 12 mW/_C From 100_C To 125_C
DISPLAY
AUXILIARY INPUT TRUTH TABLE
Enable Pin 3 0 0 1 1 1 RBI Pin 5 0 1 1 0 X BCD Input Code X X 0 0 19 0 RBO Pin 4 0 1 1 0 1 Function Performed Lamp Test Blank Segments Display Zero Blank Segments 19 Displayed 1 2 3 4 5 6 7 8 9
X = Don't Care RBI = Ripple Blanking Input RBO = Ripple Blanking Output
REV 3 1/94
©MOTOROLA CMOS LOGIC DATA Motorola, Inc. 1995
MC14558B 1
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ELECTRICAL CHARACTERISTICS (Voltages Referenced to VSS)
Characteristic Symbol VOL VDD Vdc 5.0 10 15 5.0 10 15 5.0 10 15 VIH 5.0 10 15 IOH Source 5.0 5.0 10 15 IOL 5.0 10 15 15 -- 5.0 10 15 5.0 10 15 3.0 0.64 1.6 4.2 0.64 1.6 4.2 -- -- -- -- -- -- -- -- -- -- -- -- ± 0.1 -- 5.0 10 20 2.4 0.51 1.3 3.4 0.51 1.3 3.4 -- -- -- -- -- 4.2 0.88 2.25 8.8 0.88 2.25 8.8 ± 0.00001 5.0 0.005 0.010 0.015 -- -- -- -- -- -- -- ± 0.1 7.5 5.0 10 20 1.7 0.36 0.9 2.4 0.36 0.9 2.4 -- -- -- -- -- -- -- -- -- -- -- -- ± 1.0 -- 150 300 600 mAdc 3.5 7.0 11 -- -- -- 3.5 7.0 11 2.75 5.50 8.25 -- -- -- 3.5 7.0 11 -- -- -- |