Description
BUY 74HC221N https://www.utsource.net/itm/p/97954.html
Dual non-retriggerable monostable multivibrator with reset - Description: Dual Non-Retriggerable Monostable Multivibrator with Reset ; Logic switching levels: CMOS ; Number of pins: 16 ; Output drive capability: +/- 5.2 mA ; Power dissipation considerations: Low Power or Battery Applications ; Propagation delay: 29@5V ns; Voltage: 2.0-6.0 V
Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
Supply Voltage |
VCC |
2.0 |
- |
6.0 |
V |
Input Low Voltage |
VIL |
- |
0.8 |
- |
V |
Input High Voltage |
VIH |
- |
2.0 |
- |
V |
Output Low Voltage |
VOL |
- |
0.1 |
0.4 |
V |
Output High Voltage |
VOH |
2.4 |
- |
- |
V |
Input Leakage Current |
IIL |
- |
±1.0 |
- |
μA |
Output Sink Current |
IOL |
- |
25 |
- |
mA |
Output Source Current |
IOH |
- |
-4 |
- |
mA |
Propagation Delay Time |
tpLH, tpHL |
- |
12 |
36 |
ns |
Power Dissipation |
PD |
- |
- |
100 |
mW |
Operating Temperature Range |
TA |
-40 |
- |
85 |
°C |
Instructions for Use
Supply Voltage (VCC):
- Ensure the supply voltage is within the range of 2.0V to 6.0V to avoid damage to the device.
Input Levels:
- Input signals should be within the specified input low (VIL) and input high (VIH) voltage levels to ensure proper operation.
Output Levels:
- The output low voltage (VOL) and output high voltage (VOH) should be within the specified ranges to ensure reliable signal transmission.
Current Ratings:
- Do not exceed the maximum output sink current (IOL) and output source current (IOH) ratings to prevent damage to the device.
Propagation Delay:
- The propagation delay time (tpLH, tpHL) indicates the time it takes for the output to change state after the input changes. This should be considered when designing timing-sensitive circuits.
Power Dissipation:
- The power dissipation (PD) should not exceed 100 mW to avoid overheating and potential failure.
Operating Temperature:
- The device is designed to operate within the temperature range of -40°C to 85°C. Ensure the ambient temperature stays within this range to maintain reliable performance.
Handling:
- Handle the device with care to avoid static discharge, which can damage the internal components. Use appropriate ESD protection measures.
Storage:
- Store the device in a dry, cool place away from direct sunlight and extreme temperatures to ensure long-term reliability.
(For reference only)
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