Parameters |
Mounting Type |
Through Hole |
Package / Case |
20-DIP (0.300, 7.62mm) |
Surface Mount |
NO |
Operating Temperature |
0°C~70°C |
Packaging |
Tube |
Series |
74ALS |
JESD-609 Code |
e3 |
Pbfree Code |
yes |
Part Status |
Obsolete |
Moisture Sensitivity Level (MSL) |
3 (168 Hours) |
Number of Terminations |
20 |
Type |
Identity Comparator |
Terminal Finish |
MATTE TIN |
Technology |
TTL |
Voltage - Supply |
4.5V~5.5V |
Terminal Position |
DUAL |
Peak Reflow Temperature (Cel) |
NOT APPLICABLE |
Number of Functions |
1 |
Supply Voltage |
5V |
Terminal Pitch |
2.54mm |
Time@Peak Reflow Temperature-Max (s) |
NOT APPLICABLE |
Output |
Active Low |
Pin Count |
20 |
JESD-30 Code |
R-PDIP-T20 |
Qualification Status |
COMMERCIAL |
Supply Voltage-Max (Vsup) |
5.5V |
Supply Voltage-Min (Vsup) |
4.5V |
Number of Bits |
8 |
Family |
ALS |
Current - Output High, Low |
2.6mA 24mA |
Max Propagation Delay @ V, Max CL |
20ns @ 5V, 50pF |
Propagation Delay (tpd) |
20 ns |
Output Function |
A=B |
Length |
26.075mm |
Width |
7.62mm |
RoHS Status |
ROHS3 Compliant |
DM74ALS521N Overview
Tube's packaging is made of Tube's materials.Electronic manufacturers are well aware of the 20-DIP (0.300, 7.62mm) because of its low package cost.8 Bits were used to design this electronic part.With its excellent performance-cost ratio, the 74ALS Series is a great value.There is a Through Hole-position for this electronic part.Using this electrical device, Active Low is the output.An internal 4.5V~5.5V Supply Voltage ensures the device's normal operation.Ensure its reliability by operating at 0°C~70°C Operating Temperature.Identity Comparator Types are suitable for use in standard grade applications.As a result of the high/low output current feature, 2.6mA 24mA offers maximum design flexibility.An example of a 20 termination would be one in which the characteristic impedance of the transmission line is matched to the device terminating the transmission line.The device has 1 functions.The device is powered by a voltage of 5V.Count of 20 pins is provided.ALS devices are electronic devices.The maximal Supply Voltage (Vsup) reaches 5.5V.There should be more supply voltage (Vsup) than 4.5V.
DM74ALS521N Features
20-DIP (0.300, 7.62mm) package
8 Bits
74ALS series
20 terminations
1 Functions
20 pin count
DM74ALS521N Applications
There are a lot of Rochester Electronics, LLC DM74ALS521N applications of comparators.
- “Time out" timer for consume-appication industrial controls
- Process contollenr
- Servo motor controls
- Fixed or programmable irequency division
- Companion Appliceation Nole, ICAN-6374, "Application of the CMOS CD4059A Programmable Divide-by-N Counter in FM and Ctizens Band Transceiver Digital Tuners"
- Servo Motor Controls
- Communications digltal frequency synthesizers: VHF, UHF, FM, AM, etc.