Quick Detail:
4-Bit Magnitude Comparator
Description:
The MC14585B 4–Bit Magnitude Comparator is constructed with complementary MOS (CMOS) enhancement mode devices. The circuit has eight comparing inputs (A3, B3, A2, B2, A1, B1, A0, B0), three cascading inputs (A < B, A = B, and A > B), and three outputs (A< B, A = B, and A > B). This device compares two 4–bit words (A and B) and determines whether they are “less than”, “equal to”, or “greater than” by a high level on the appropriate output. For words greater than
4–bits, units can be cascaded by connecting outputs (A > B), (A < B), and (A = B) to the corresponding inputs of the next significant comparator. Inputs (A < B), (A = B), and (A > B) on the least significant (first) comparator are connected to a low, a high, and a low, respectively.
Applications include logic in CPU’s, correction and/or detection of instrumentation conditions, comparator in testers, converters, and controls.
Applications:
• Diode Protection on All Inputs
• Expandable
• Applicable to Binary or 8421–BCD Code
• Supply Voltage Range = 3.0 Vdc to 18 Vdc
• Capable of Driving Two Low–power TTL Loads or One Low–power Schottky TTL Load over the Rated Temperature Range
• Can be Cascaded – See Fig. 3
Specifications:
|
Datasheets |
MC14585B |
|
Product Photos |
16 SOIC |
|
Product Change Notification |
LTB Notification 03/Jan/2008 |
|
Standard Package |
2,500 |
|
Category |
Integrated Circuits (ICs) |
|
Family |
Logic - Comparators |
|
Series |
4000B |
|
Packaging |
Tape & Reel (TR) |
|
Type |
Magnitude Comparator |
|
Number of Bits |
4 |
|
Output |
Active High |
|
Output Function |
A<B, A=B, A>B |
|
Voltage - Supply |
3 V ~ 18 V |
|
Current - Output High, Low |
4.2mA, 4.2mA |
|
Max Propagation Delay @ V, Max CL |
260ns @ 15V, 50pF |
|
Current - Quiescent |
20µA |
|
Operating Temperature |
-55°C ~ 125°C |
|
Package / Case |
16-SOIC (0.154", 3.90mm Width) |
|
Mounting Type |
Surface Mount |
Competitive Advantage:
Warranty :180 days !
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(goods weight below 3Kg) ,during 20130901-20130930 .
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