详情
BUY 74HC7244 https://www.utsource.net/itm/p/14841.html
OCTAL BUS BUFFER (WITH SCHMITT TRIGGER INPUTS)
| Parameter |
Symbol |
Conditions |
Min |
Typ |
Max |
Unit |
| Supply Voltage |
VCC |
|
2.0 |
|
6.0 |
V |
| Input Voltage (High) |
VIH |
II = -0.1 mA |
3.15 |
|
6.0 |
V |
| Input Voltage (Low) |
VIL |
II = 0.1 mA |
0.8 |
|
2.85 |
V |
| Output Voltage (High) |
VOH |
IO = -4 mA |
2.4 |
|
VCC - 0.1 |
V |
| Output Voltage (Low) |
VOL |
IO = 16 mA |
0.0 |
|
0.4 |
V |
| Propagation Delay Time |
tpd |
VCC = 5 V, TA = 25°C |
10 |
15 |
25 |
ns |
| Power Dissipation |
PD |
|
|
|
100 |
mW |
| Operating Temperature |
TA |
|
-40 |
|
85 |
°C |
| Storage Temperature |
TSTG |
|
-65 |
|
150 |
°C |
Instructions for Use:
Power Supply:
- Connect VCC to the positive supply voltage (2.0V to 6.0V).
- Connect GND to the ground.
Input Signals:
- Ensure input signals are within the specified range (0.8V to 2.85V for low, 3.15V to 6.0V for high).
Output Signals:
- When the output is high, it can source up to 4 mA.
- When the output is low, it can sink up to 16 mA.
Propagation Delay:
- The propagation delay time is typically 15 ns at VCC = 5V and TA = 25°C.
Temperature Range:
- The device operates reliably between -40°C and 85°C.
- Store the device between -65°C and 150°C.
Handling:
- Handle with care to avoid static discharge which can damage the IC.
- Follow proper soldering techniques to ensure reliable connections.
Applications:
- Suitable for use in digital circuits requiring level shifting, signal buffering, and data transfer.
Pin Configuration:
- Refer to the datasheet for the specific pinout of the 74HC7244, as it may vary depending on the package type (e.g., DIP, SOIC).
Testing:
- Test the IC under typical operating conditions to ensure it meets the specified parameters.
Storage:
- Store in a dry, cool place to prevent moisture damage.
(For reference only)
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