WITH CLEAR AND PRESET; WITH DUAL OUTPUT ENABLE; WITH READ-BACK
Control Type:
ENABLE LOW/HIGH
Count Direction:
UNIDIRECTIONAL
Family:
ALS
JESD-30 Code:
R-PDSO-G24
JESD-609 Code:
e4
Length:
15.4 mm
Load Capacitance (CL):
50 pF
Logic IC Type:
BUS DRIVER
Max I(ol):
0.024 A
Moisture Sensitivity Level:
1
Number of Bits:
8
Number of Functions:
8
Number of Ports:
2
Number of Terminals:
24
Operating Temperature-Max:
70 °C
Output Characteristics:
3-STATE
Output Polarity:
TRUE
Package Body Material:
PLASTIC/EPOXY
Package Code:
SOP
Package Equivalence Code:
SOP24,.4
Package Shape:
RECTANGULAR
Package Style:
SMALL OUTLINE
Packing Method:
TUBE
Peak Reflow Temperature (Cel):
260
Power Supply Current-Max (ICC):
73 mA
Prop. Delay@Nom-Sup:
18 ns
Propagation Delay (tpd):
27 ns
Qualification Status:
Not Qualified
Seated Height-Max:
2.65 mm
Supply Voltage-Max (Vsup):
5.5 V
Supply Voltage-Min (Vsup):
4.5 V
Supply Voltage-Nom (Vsup):
5 V
Surface Mount:
YES
Technology:
TTL
Temperature Grade:
COMMERCIAL
Terminal Finish:
Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form:
GULL WING
Terminal Pitch:
1.27 mm
Terminal Position:
DUAL
Time@Peak Reflow Temperature-Max (s):
30
Width:
7.5 mm
SN74ALS666DW Frequently Asked Questions (FAQs)
The maximum operating frequency of the SN74ALS666DW is 100 MHz, but it can vary depending on the specific application and operating conditions.
To ensure signal integrity, use proper PCB layout techniques, such as impedance matching, signal routing, and decoupling. Additionally, consider using series termination resistors and/or parallel termination resistors to reduce signal reflections.
The recommended power-on sequence is to apply VCC first, followed by VEE, and then the input signals. This helps prevent latch-up and ensures proper device operation.
Yes, the SN74ALS666DW can operate in a 3.3V system, but the output voltage will be limited to 3.3V. Additionally, the device's input voltage threshold may be affected, so ensure that the input signals meet the recommended voltage levels.
To handle thermal issues, ensure good heat dissipation by using a heat sink, thermal interface material, and proper PCB design. Monitor the device's junction temperature (TJ) and ensure it stays within the recommended operating range (typically -40°C to 85°C).
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SN74ALS666DW Overview
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About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
