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PDF SN74LS145 Data sheet ( Hoja de datos )
| Número de pieza | SN74LS145 | |
| Descripción | 1-OF-10 DECODER/DRIVER OPEN-COLLECTOR | |
| Fabricantes | Motorola Semiconductors | |
| Logotipo |  |
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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
CONNECTION DIAGRAM DIP (TOP VIEW)
VCC P0 P1 P2 P3 Q9 Q8 Q7
16 15 14 13 12 11 10 9
SN54/74LS145
1-OF-10 DECODER / DRIVER
OPEN-COLLECTOR
LOW POWER SCHOTTKY
16
1
J SUFFIX
CERAMIC
CASE 620-09
1 2 3 4 56 78
Q0 Q1 Q2 Q3 Q4 Q5 Q6 GND
PIN NAMES
LOADING (Note a)
HIGH
LOW
P0, P1, P2, P3
Q0 to Q9
BCD Inputs
Outputs (Note b)
0.5 U.L.
Open Collector
0.25 U.L.
15 (7.5) U.L.
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.
LOGIC DIAGRAM
P0
INPUTS
P1
P2
P3
INPUT
INVERTERS
0
0
1 1 2 2 33
DECODE/DRIVER
GATES
Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9
OUTPUTS
FAST AND LS TTL DATA
5-1
16
1
N SUFFIX
PLASTIC
CASE 648-08
16
1
D SUFFIX
SOIC
CASE 751B-03
ORDERING INFORMATION
SN54LSXXXJ Ceramic
SN74LSXXXN Plastic
SN74LSXXXD SOIC
LOGIC SYMBOL
15 14 13 12
P0 P1 P2 P3
Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9
1 2 3 4 5 6 7 9 10 11
VCC = PIN 16
GND = PIN 8
1 page | ||
| Páginas | Total 3 Páginas | |
| PDF Descargar | [ Datasheet SN74LS145.PDF ] | |
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