SN54/74LS145 1-OF-10 DECODER/DRIVER OPEN-COLLECTOR
The SN54 / 74LS145, 1-of-10 Decoder/Driver, is designed to accept BCD...
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)
VCC 16 P0 15 P1 14 P2 13 P3 12 Q9 11 Q8 10 Q7 9
16 1
J SUFFIX CERAMIC CASE 620-09
16
N SUFFIX PLASTIC CASE 648-08
1
1 Q0
2 Q1
3 Q2
4 Q3
5 Q4
6 Q5
7 Q6
8 GND
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
P0
INPUTS P1 P2 P3
LOGIC SYMBOL
15 14 13 12 P0 P1 P2 P3
INPUT INVERTERS 0 0 1 1 2 2 3 3
Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9
1 2 3 4 5 6 DECODE/DRIVER GATES Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 ...
