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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
MC14547B High Current BCD-to-Seven Segment Decoder/Driver
The MC14547 BCD-to-seven segment 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 an 8421 BCD-to-seven segment decoder with high output drive capability. Blanking (BI), can be used to turn off or pulse modulate the brightness of the display. The MC14547 can drive seven-segment light-emitting diodes (LED), incandescent, fluorescent or gas discharge 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. * * * * * * * * High Current Sourcing Outputs (Up to 65 mA) Low Logic Circuit Power Dissipation Supply Voltage Range = + 3.0 V to + 18 V Blanking Input Readout Blanking on All Illegal Combinations Lamp Intensity Modulation Capability Multiplexing Capability Capable of Driving Two Low-Power TTL Loads, One Low-Power Schottky TTL Load or Two HTL Loads over the Rated Temperature Range * Use MC14511B for Applications Requiring Data Latches MAXIMUM RATINGS* (Voltages referenced to VSS, Pin 8)
Rating Symbol VDD Vin TA Tstg IOHmax PD DC Supply Voltage MC14XXXBCP MC14XXXBCL MC14XXXBDW L SUFFIX CERAMIC CASE 620
P SUFFIX PLASTIC CASE 648
DW SUFFIX SOIC CASE 751G
ORDERING INFORMATION
Plastic Ceramic SOIC
TA = - 55 to 125C for all packages.
B C NC BI NC 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
IIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIII
Value Unit V V - 0.5 to + 18 Input Voltage, All Inputs - 0.5 to VDD + 0.5 - 55 to + 125 - 65 to + 150 65 1200* Operating Temperature Range Storage Temperature Range Maximum Continuous Output Drive Current (Source) per Output Maximum Continuous Power Dissipation
_C _C
mA 0 mW 1 2 3
DISPLAY
4
5
6
7
8
9
* Maximum Ratings are those values beyond which damage to the device may occur. * See Power Derating Curve Figure 1.
BI
TRUTH TABLE
Inputs Outputs Display Blank 0 1 2 3 4 5 6 7 8 9 Blank Blank Blank Blank Blank Blank D C BAabcde f g XXXX0000000 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 1 0 1 1 0 1 0 1 1 1 0 0 0 0 0 0 1 1 1 1 1 0 0 1 1 1 0 0 0 0 0 0 1 1 0 1 1 1 1 1 1 1 0 0 0 0 0 0 1 0 1 1 0 1 1 0 1 0 0 0 0 0 0 0 1 0 1 0 0 0 1 0 1 0 0 0 0 0 0 0 1 0 0 0 1 1 1 0 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 0 1 1 0 0 0 0 0 0
This device contains circuitry to protect the inputs against damage due to high static voltages or electric fields; however, it is advised that normal precautions be taken to avoid application of any voltage higher than maximum rated voltages to this high-impedance circuit. A destructive high current mode may occur if Vin and Vout is not constrained to the range VSS (Vin or Vout) VDD. Due to the sourcing capability of this circuit, damage can occur to the device if VDD is applied, and the outputs are shorted to VSS and are at a logical 1 (See Maximum Ratings). Unused inputs must always be tied to an appropriate logic voltage level (e.g., either VSS or VDD).
0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
X = Don't care
REV 3 1/94
(c)MOTOROLA CMOS LOGIC DATA Motorola, Inc. 1995
MC14547B 1
IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
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 5.0 Min -- -- -- - 55_C 25_C 125_C Max Min -- -- -- Typ # 0 0 0 Max Min -- -- -- Max Unit Vdc Output Voltage Vin = VDD or 0 "0" Level 0.05 0.05 0.05 -- -- -- 1.5 3.0 4.0 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 0.1 -- 5.0 10 20 0.05 0.05 0.05 -- -- -- 1.5 3.0 4.0 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 0.1 7.5 5.0 10 20 0.05 0.05 0.05 -- -- -- 1.5 3.0 4.0 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 1.0 -- 150 300 600 Adc pF Adc Vdc Vdc "1" Level Vin = 0 or VDD Input Voltage # "0" Level (VO = 3.8 or 0.5 Vdc) (VO = 8.8 or 1.0 Vdc) (VO = 13.8 or 1.5 Vdc) (VO = 0.5 or 3.8 Vdc) (VO = 1.0 or 8.8 Vdc) (VO = 1.5 or 13.8 Vdc) Output Drive Voltage (IOH = 5.0 mA) (IOH = 10 mA) (IOH = 20 mA) (IOH = 40 mA) (IOH = 65 mA) (IOH = 5.0 mA) (IOH = 10 mA) (IOH = 20 mA) (IOH = 40 mA) (IOH = 65 mA) (IOH = 5.0 mA) (IOH = 10 mA) (IOH = 20 mA) (IOH = 40 mA) (IOH = 65 mA) Output Drive Current (VOL = 0.4 Vdc) (VOL = 0.5 Vdc) (VOL = 1.5 Vdc) Input Current Input Capacitance Quiescent Current (Per Package) Vin = 0 or VDD, Iout = 0 A Total Supply Current** (Dynamic plus Quiescent, Per Package) (CL = 50 pF on all outputs, all buffers switching) IOL Sink 5.0 10 15 Iin Cin IDD 15 -- 5.0 10 15 5.0 10 15 0.32 0.80 2.10 -- -- -- -- -- 0.26 0.65 1.7 -- -- -- -- -- 0.44 1.13 4.4 0.00001 5.0 0.005 0.010 0.015 0.18 0.45 1.2 -- -- -- -- -- Source VIL -- -- -- 3.5 7.0 11 4.0 -- 3.8 -- 3.1 9.1 -- 8.8 -- 8.4 14 -- 13.8 -- 13.5 -- -- -- 3.5 7.0 11 4.2 4.1 3.9 3.7 3.2 9.2 9.1 9.0 8.9 8.5 14.2 14.1 14.0 13.8 13.5 2.25 4.50 6.75 2.75 5.50 8.25 4.3 4.3 4.2 4.0 3.7 9.3 9.3 9.2 9.0 8.8 14.3 14.3 14.2 14.0 13.7 -- -- -- 3.5 7.0 11 4.3 -- 4.0 -- 3.0 9.3 -- 9.2 -- 8.1 14.4 -- 14.2 -- 13.3 VOH 4.1 9.1 14.1 4.4 9.4 14.4 4.6 9.6 14.6 4.3 9.3 14.4 Vdc Vdc VOH Vdc 10 15 Vdc mAdc IT IT = (1.9 A/kHz) f + IDD IT = (3.8 A/kHz) f + IDD IT = (5.7 A/kHz) f + IDD Adc #Noise immunity specified for worst input combination. Noise Margin for both "1" and "0" level = 1.0 V min @ VDD = 5.0 V = 2.0 V min @ VDD = 10 V = 2.5 V min @ VDD = 15 V To calculate total supply current at loads other than 50 pF: IT(CL) = IT(50 pF) + 3.5 x 10-3 (CL - 50) VDDf where: IT is in A (per package), CL in pF, VDD in V, and f in kHz is input frequency. ** The formulas given are for the typical characteristics only at 25_C.
MC14547B 2
MOTOROLA CMOS LOGIC DATA
IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
SWITCHING CHARACTERISTICS (CL = 50 pF, TA = 25_C)
Characteristic Symbol tTLH VDD Vdc 5.0 10 15 5.0 10 15 5.0 10 15 5.0 10 15 5.0 10 15 5.0 10 15 Min -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Typ 40 40 40 Max 80 80 80 Unit ns Output Rise Time Output Fall Time tTHL 125 75 70 750 300 200 750 300 200 750 300 200 500 250 170 250 150 140 1500 600 400 1500 600 400 1500 600 400 1000 500 340 ns ns Data Propagation Delay Time tPLH ns tPHL Blank Propagation Delay Time tPLH tPHL
MOTOROLA CMOS LOGIC DATA
MC14547B 3
LOGIC DIAGRAM
BI 4
A7 13 a
12 b B1 11 c
10 d C2 9e
15 f D6 14 g
1200 PD, MAXIMUM POWER DISSIPATION (mW) PER PACKAGE 1000 800 600 400 200 0 25 50 75 100 125 150 175 TA, AMBIENT TEMPERATURE (0C) (L) CERAMIC
(P) PDIP (D) SOIC 410 mW (L) 230 mW (P) 150 mW (D)
Figure 1. Ambient Temperature Power Derating
MC14547B 4
MOTOROLA CMOS LOGIC DATA
CONNECTIONS TO VARIOUS DISPLAY READOUTS
LIGHT EMITTING DIODE (LED) READOUT
VDD VDD
COMMON CATHODE LED
COMMON ANODE LED
1.7 V
1.7 V
VSS
VSS
INCANDESCENT READOUT
VDD VDD
LIGHT-EMITTING DIODE (LED) READOUT USING A ZENER DIODE TO REPLACE DROPPING RESISTORS
VDD
** COMMON CATHODE LED
VSS VSS VZD* VSS
GAS DISCHARGE READOUT
VDD APPROPRIATE VOLTAGE
FLUORESCENT READOUT
VDD
DIRECT (LOW BRIGHTNESS)
VSS * VZD should be set at VDD - 1.3 V - VLED. Wattage of zener diode must be calculated for number of segments and worst-case conditions. ** A filament pre-warm resistor is recommended to reduce filament thermal shock and increase the effective cold resistance of the filament. VSS
FILAMENT SUPPLY VSS OR APPROPRIATE VOLTAGE BELOW VSS. (Caution: Absolute maximum working voltage = 18.0 V)
MOTOROLA CMOS LOGIC DATA
MC14547B 5
OUTLINE DIMENSIONS
L SUFFIX CERAMIC DIP PACKAGE CASE 620-10 ISSUE V
-A-
16 9 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEAD WHEN FORMED PARALLEL. 4. DIMENSION F MAY NARROW TO 0.76 (0.030) WHERE THE LEAD ENTERS THE CERAMIC BODY. DIM A B C D E F G H K L M N INCHES MIN MAX 0.750 0.785 0.240 0.295 --- 0.200 0.015 0.020 0.050 BSC 0.055 0.065 0.100 BSC 0.008 0.015 0.125 0.170 0.300 BSC 0_ 15 _ 0.020 0.040 MILLIMETERS MIN MAX 19.05 19.93 6.10 7.49 --- 5.08 0.39 0.50 1.27 BSC 1.40 1.65 2.54 BSC 0.21 0.38 3.18 4.31 7.62 BSC 0_ 15 _ 0.51 1.01
-B-
1 8
C
L
-T-
SEATING PLANE
N E F D G
16 PL
K M J
16 PL
0.25 (0.010)
M
M
TB
S
0.25 (0.010)
TA
S
P SUFFIX PLASTIC DIP PACKAGE CASE 648-08 ISSUE R
-A-
16 9 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. 5. ROUNDED CORNERS OPTIONAL. DIM A B C D F G H J K L M S INCHES MIN MAX 0.740 0.770 0.250 0.270 0.145 0.175 0.015 0.021 0.040 0.70 0.100 BSC 0.050 BSC 0.008 0.015 0.110 0.130 0.295 0.305 0_ 10 _ 0.020 0.040 MILLIMETERS MIN MAX 18.80 19.55 6.35 6.85 3.69 4.44 0.39 0.53 1.02 1.77 2.54 BSC 1.27 BSC 0.21 0.38 2.80 3.30 7.50 7.74 0_ 10 _ 0.51 1.01
B
1 8
F S
C
L
-T- H G D
16 PL
SEATING PLANE
K
J TA
M
M
0.25 (0.010)
M
MC14547B 6
MOTOROLA CMOS LOGIC DATA
OUTLINE DIMENSIONS
D SUFFIX PLASTIC SOIC PACKAGE CASE 751B-05 ISSUE J
-A-
NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION. MILLIMETERS MIN MAX 9.80 10.00 3.80 4.00 1.35 1.75 0.35 0.49 0.40 1.25 1.27 BSC 0.19 0.25 0.10 0.25 0_ 7_ 5.80 6.20 0.25 0.50 INCHES MIN MAX 0.386 0.393 0.150 0.157 0.054 0.068 0.014 0.019 0.016 0.049 0.050 BSC 0.008 0.009 0.004 0.009 0_ 7_ 0.229 0.244 0.010 0.019
16
9
-B-
1 8
P
8 PL
0.25 (0.010)
M
B
S
G F
K C -T-
SEATING PLANE
R
X 45 _
M D
16 PL M
J
0.25 (0.010)
TB
S
A
S
DIM A B C D F G J K M P R
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JAPAN: Nippon Motorola Ltd.; Tatsumi-SPD-JLDC, 6F Seibu-Butsuryu-Center, 3-14-2 Tatsumi Koto-Ku, Tokyo 135, Japan. 03-81-3521-8315 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852-26629298
MOTOROLA CMOS LOGIC DATA
*MC14547B/D*
MC14547B MC14547B/D 7

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