MC14490: Hex Bounce Eliminator
The MC14490 is constructed with complementary MOS enhancement mode devices, and is used for the elimination of extraneous level changes that result when interfacing with mechanical contacts. The digital contact bounce eliminator circuit takes an input signal from a bouncing contact and generates a clean digital signal four clock periods after the input has stabilized. The bounce eliminator circuit will remove bounce on both the "make" and the "break" of a contact closure. The clock for operation of the MC14490 is derived from an internal R-C oscillator which requires only an external capacitor to adjust for the desired operating frequency (bounce delay). The clock may also be driven from an external clock source or the oscillator of another MC14490 (see Figure 5).
技术特性
- Diode Protection on All Inputs
- Six Debouncers Per Package
- Internal Pullups on All Data Inputs
- Can Be Used as a Digital Integrator, System Synchronizer, or Delay Line
- Internal Oscillator (R-C), or External Clock Source
- TTL Compatible Data Inputs/Outputs
- Single Line Input, Debounces Both "Make" and "Break" Contacts
- Does Not Require "Form C" (Single Pole Double Throw) Input Signal
- Cascadable for Longer Time Delays
- Schmitt Trigger on Clock Input (Pin 7)
- Supply Voltage Range = 3.0 V to 18 V
- Chip Complexity: 546 FETs or 136.5 Equivalent Gates
- Pb-Free Packages are Available
|
封装图 MARKING DIAGRAM
|
订购信息 Ordering Information
| 产品 |
状况 |
Compliance |
具体说明 |
封装 |
MSL* |
容器 |
预算价格 (1千个数量的单价） |
| 类型 |
外形 |
类型 |
数量 |
| MC14490DWG |
Active |
|
Hex Bounce Eliminator |
SOIC-16W |
751G-03 |
3 |
Tube |
47 |
$3.4666 |
| MC14490DWR2G |
Active |
|
Hex Bounce Eliminator |
SOIC-16W |
751G-03 |
3 |
Tape and Reel |
1000 |
$3.4666 |
| MC14490FELG |
Active, Not Rec |
|
Hex Bounce Eliminator |
SOEIAJ-16 |
966-01 |
3 |
Tape and Reel |
2000 |
$3.8999 |
| MC14490FG |
Active, Not Rec |
|
Hex Bounce Eliminator |
SOEIAJ-16 |
966-01 |
3 |
Tube |
50 |
$4.2666 |
| MC14490PG |
Lifetime |
|
Hex Bounce Eliminator |
PDIP-16 |
648-08 |
|
Tube |
500 |
$3.4799 |
| NLV14490DWG |
Active |
| AEC Qualified |
| PPAP Capable |
| Pb-free |
| Halide free |
|
Hex Bounce Eliminator |
SOIC-16W |
751G-03 |
3 |
Tube |
47 |
$3.8132 |
| NLV14490DWR2G |
Active |
| AEC Qualified |
| PPAP Capable |
| Pb-free |
| Halide free |
|
Hex Bounce Eliminator |
SOIC-16W |
751G-03 |
3 |
Tape and Reel |
1000 |
$3.8132 |
| NLV14490PG |
Lifetime |
| AEC Qualified |
| PPAP Capable |
| Pb-free |
| Halide free |
|
Hex Bounce Eliminator |
PDIP-16 |
648-08 |
|
Tube |
500 |
$3.8279 |
数据资料DataSheet下载
