SN54/74LS145 1-OF-10 DECODER/DRIVER OPEN-COLLECTOR
The SN54 / 74LS145, 1-of-10 Decoder/Driver, is designed to accept BCD inputs and provide appropriate outputs to drive 10-digit incandescent displays. All outputs remain off for all invalid binary input conditions. It is designed for use as indicator/relay drivers or as an open-collector logic circuit driver. Each of the high breakdown output transistors will sink up to 80 mA of current. Typical power dissipation is 35 mW. This device is fully compatible with all TTL families. • Low Power Version of 54 / 74145 • Input Clamp Diodes Limit High Speed Termination Effects
1-OF-10 DECODER/ DRIVER OPEN-COLLECTOR
LOW POWER SCHOTTKY
CONNECTION DIAGRAM DIP (TOP VIEW)
V CC 16 P 0 15 P 1 14 P 2 13 P 3 12 Q 9 11 Q 8 10 Q 7
J SUFFIX CERAMIC CASE 620-09
16 1
9
16
1 Q 0 2 Q 1 3 Q 2 4 Q 3 5 Q 4 6 Q 5 7 Q 6 8 GND
N SUFFIX PLASTIC CASE 648-08
1
PIN NAMES P0, P1, P2, P3 Q0 to Q9 BCD Inputs Outputs (Note b)
LOADING (Note a) HIGH 0.5 U.L. Open Collector LOW 0.25 U.L. 15 (7.5) U.L.
16 1
D SUFFIX SOIC CASE 751B-03
NOTES: a) 1 TTL Unit Load (U.L.) = 40 µA HIGH/1.6 mA LOW. b) The Output LOW drive factor is 2.5 U.L. for Military (54) and 15 U.L. for Commercial (74) Temperature Ranges.
ORDERING INFORMATION
SN54LSXXXJ SN74LSXXXN SN74LSXXXD Ceramic Plastic SOIC
LOGIC DIAGRAM
P 0
INPUTS
P 1
P 2
P 3
LOGIC SYMBOL
15 14 INPUT INVERTERS P 0
13
12
0
0
1
1
2
2
3
3
P P 1 2
P 3
Q Q Q Q Q Q Q Q Q Q 0 1 2 3 4 5 6 7 8 9
1
2
3
4
5
6
7
9
10
11
DECODE/DRIVER GATES V = PIN 16 CC GND = PIN 8 Q 0 Q 1 Q 2 Q 3 Q 4 Q 5 Q 6 Q 7 Q 8 Q 9
OUTPUTS
FAST AND LS TTL DATA 5-240
SN54/74LS145
TRUTH TABLE
INPUTS P3 L L L L L L L L H H H H H H H H P2 L L L L H H H H L L L L H H H H P1 L L H H L L H H L L H H L L H H P0 L H L H L H L H L H L H L H L H Q0 L H H H H H H H H H H H H H H H Q1 H L H H H H H H H H H H H H H H Q2 H H L H H H H H H H H H H H H H Q3 H H H L H H H H H H H H H H H H OUTPUTS Q4 H H H H L H H H H H H H H H H H Q5 H H H H H L H H H H H H H H H H Q6 H H H H H H L H H H H H H H H H Q7 H H H H H H H L H H H H H H H H Q8 H H H H H H H H L H H H H H H H Q9 H H H H H H H H H L H H H H H H
H = HIGH Voltage Level L = LOW Voltage Level
GUARANTEED OPERATING RANGES
Symbol VCC TA VOH IOL Supply Voltage Operating Ambient Temperature Range Output Voltage — High Output Current — Low Parameter 54 74 54 74 54, 74 54 74 Min 4.5 4.75 – 55 0 Typ 5.0 5.0 25 25 Max 5.5 5.25 125 70 15 12 24 Unit V °C V mA
FAST AND LS TTL DATA 5-241
SN54/74LS145
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits Symbol VIH VIL VIK IOH VOL Parameter Input HIGH Voltage Input LOW Voltage Input Clamp Diode Voltage Output HIGH Current 54, 74 54, 74 Output LOW Voltage 74 54, 74 IIH IIL ICC Input HIGH Current Input LOW Current Power Supply Current 0.25 0.35 2.3 54 74 – 0.65 Min 2.0 0.7 0.8 – 1.5 250 0.4 0.5 3.0 20 0.1 – 0.4 13 V µA V V V µA mA mA mA Typ Max Unit V V Test Conditions Guaranteed Input HIGH Voltage for All Inputs Guaranteed Input LOW Voltage for All Inputs VCC = MIN, IIN = – 18 mA VCC = MIN, VOH = MAX IOL = 12 mA IOL = 24 mA IOL = 80 mA VCC = VCC MIN, VIN = VIL or VIH per Truth Table
VCC = MAX, VIN = 2.7 V VCC = MAX, VIN = 7.0 V VCC = MAX, VIN = 0.4 V VCC = MAX, VIN = GND
AC CHARACTERISTICS (TA = 25°C)
Limits Symbol tPHL tPLH Propagation Delay Pn Input to Qn Output Parameter Min Typ Max 50 50 Unit ns Test Conditions VCC = 5.0 V CL = 45 pF
AC WAVEFORMS
V IN
1.3 V
1.3 V
V IN
1.3 V
1.3 V
t PHL
t PLH
t PHL
t PLH
V OUT
1.3 V
1.3 V
V OUT
1.3 V
1.3 V
Figure 1
Figure 2
FAST AND LS TTL DATA 5-242
-A-
Case 751B-03 D Suffix 16-Pin Plastic SO-16
NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. 3. CONTROLLING DIMENSION: MILLIMETER. DIMENSION A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. 751B 01 IS OBSOLETE, NEW STANDARD 751B 03.
16
9
-B1 8
P
8 PL
0.25 (0.010)
M
B
M
R X 45° G -TD 16 PL
0.25 (0.010)
M
C
SEATING PLANE
K
T B
S
M
F
J
A
S
DIM A B C D F G J K M P R
MILLIMETERS MIN MAX
9.80 3.80 1.35 0.35 0.40 10.00 4.00 1.75 0.49 1.25
INCHES MIN MAX
0.386 0.150 0.054 0.014 0.016 0.393 0.157 0.068 0.019 0.049
1.27 BSC 0.19 0.10 0 0.25 0.25 7
0.050 BSC 0.008 0.004 0 0.009 0.009 7
°
°
°
°
5.80 0.25
6.20 0.50
0.229 0.010
0.244 0.019
Case 648-08 N Suffix 16-Pin Plastic -A16 9
NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. 3. CONTROLLING DIMENSION: INCH. DIMENSION L" TO CENTER OF LEADS WHEN FORMED PARALLEL. 4. DIMENSION B" DOES NOT INCLUDE MOLD FLASH. 5. 6. ROUNDED CORNERS OPTIONAL. 648 01 THRU 07 OBSOLETE, NEW STANDARD 648 08.
B
1 8
F S
C -TK
SEATING PLANE
L
H G D 16 PL
0.25 (0.010)
M
J
M
T
A
M
DIM A B C D F G H J K L M S
MILLIMETERS MIN MAX
18.80 6.35 3.69 0.39 1.02 19.55 6.85 4.44 0.53 1.77
INCHES MIN MAX
0.740 0.250 0.145 0.015 0.040 0.770 0.270 0.175 0.021 0.070
2.54 BSC 1.27 BSC 0.21 2.80 7.50 0 0.38 3.30 7.74 10
0.100 BSC 0.050 BSC 0.008 0.110 0.295 0 0.015 0.130 0.305 10
°
°
°
°
0.51
1.01
0.020
0.040
-A16 9
Case 620-09 J Suffix 16-Pin Ceramic Dual In-Line
NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH.
-B1 8
3. DIMENSION L TO CENTER OF LEAD WHEN FORMED PARALLEL. 4. DIM F MAY NARROW TO 0.76 (0.030) WHERE THE LEAD ENTERS THE CERAMIC BODY.
C
L
5. 620 01 THRU 08 OBSOLETE, NEW STANDARD 620 09.
-TSEATING PLANE
K E F D 16 PL
0.25 (0.010)
M
N G
T A
S
M J 16 PL
0.25 (0.010)
M
T
B
S
DIM A B C D E F G J K L M N
MILLIMETERS MIN MAX
19.05 6.10 19.55 7.36 4.19 0.39 0.53
INCHES MIN MAX
0.750 0.240 0.770 0.290 0.165 0.015 0.021
1.27 BSC 1.40 1.77
0.050 BSC 0.055 0.070
2.54 BSC 0.23 0.27 5.08 7.62 BSC 0
0.100 BSC 0.009 0.011 0.200 0.300 BSC 0
°
15
°
°
15
°
0.39
0.88
0.015
0.035
FAST AND LS TTL DATA 5-243
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FAST AND LS TTL DATA 5-244