Parameters |
Mounting Type |
Through Hole |
Package / Case |
16-DIP (0.300, 7.62mm) |
Surface Mount |
NO |
Operating Temperature |
-40°C~85°C |
Packaging |
Tube |
Series |
74AC |
JESD-609 Code |
e3 |
Pbfree Code |
yes |
Part Status |
Obsolete |
Moisture Sensitivity Level (MSL) |
3 (168 Hours) |
Number of Terminations |
16 |
Type |
Multiplexer |
Terminal Finish |
MATTE TIN |
Technology |
CMOS |
Voltage - Supply |
2V~6V |
Terminal Position |
DUAL |
Peak Reflow Temperature (Cel) |
NOT APPLICABLE |
Number of Functions |
4 |
Terminal Pitch |
2.54mm |
Time@Peak Reflow Temperature-Max (s) |
NOT APPLICABLE |
Pin Count |
16 |
Number of Outputs |
1 |
Qualification Status |
Not Qualified |
Circuit |
4 x 2:1 |
Supply Voltage-Max (Vsup) |
6V |
Supply Voltage-Min (Vsup) |
2V |
Family |
AC |
Number of Inputs |
2 |
Output Characteristics |
3-STATE |
Current - Output High, Low |
24mA 24mA |
Output Polarity |
TRUE |
Voltage Supply Source |
Single Supply |
Independent Circuits |
1 |
Height Seated (Max) |
5.08mm |
Width |
7.62mm |
RoHS Status |
ROHS3 Compliant |
74AC257PC Overview
In order to conserve board space, digital switch is included in the 16-DIP (0.300, 7.62mm).It is packaged in the way of Tube.In terms of mounting, digital switch ic uses the Through Hole method .As the analog part, the circuit uses an analog IC Multiplexer.By maintaining the operating temperature at -40°C~85°C, turn signal switch will not be affected by external factors.Designers have greater flexibility using digital controlled switch when it works with 2V~6V voltage.Multiplexers from the 74AC series can be used in a wide range of applications.There is a design for terminating 16 as part of its basic configuration.Signal switch has 16 component pins.The logic switch is a member of the AC family.The minimal supply voltage (Vsup) should be kept at 2V to avoid some unnecessary failures.Avoid unnecessary failures by keeping Vsup at 6V.The turn signal switch contains 1 outputs designed to operate.This multiplexer provides 2 inputs.
74AC257PC Features
Supplied in the 16-DIP (0.300, 7.62mm) package
74AC257PC Applications
There are a lot of Rochester Electronics, LLC 74AC257PC Signal Switches / Multiplexers / Decoders applications.
- Telephone network
- To select different devices in microprocessor output
- Enabling different rows of memory depending on address in memory chips
- Transmission from the computer system of a satellite
- Medical industry
- Frequency multiplexing system
- Code converters
- Data communication
- Computer memory
- To select different devices in microprocessor input