Description
BUY SN74HC74DR https://www.utsource.net/itm/p/1128245.html
1A, 9V,±2% Tolerance, Voltage Regulator, Ta = 0°C to +125°C; Package: TO-220, SINGLE GAUGE; No of Pins: 3; Container: Rail; Qty per Container: 50
| Parameter |
Symbol |
Conditions |
Min |
Typical |
Max |
Unit |
| Supply Voltage |
VCC |
Operating |
2.0 |
- |
6.0 |
V |
| Input Low Voltage |
VIL |
VCC = 4.5V to 5.5V |
0.8 |
- |
- |
V |
| Input High Voltage |
VIH |
VCC = 4.5V to 5.5V |
- |
- |
2.0 |
V |
| Output Low Voltage |
VOL |
IOL = 4 mA, VCC = 4.5V to 5.5V |
0.1 |
- |
- |
V |
| Output High Voltage |
VOH |
IOH = -0.4 mA, VCC = 4.5V to 5.5V |
- |
- |
4.4 |
V |
| Propagation Delay Time (Set) |
tpd(s) |
VCC = 4.5V to 5.5V, TA = 25°C |
7 |
- |
13 |
ns |
| Propagation Delay Time (Reset) |
tpd(r) |
VCC = 4.5V to 5.5V, TA = 25°C |
7 |
- |
13 |
ns |
| Power Dissipation |
PD |
Continuous |
- |
- |
100 |
mW |
| Operating Temperature Range |
TA |
- |
-40 |
- |
85 |
°C |
| Storage Temperature Range |
TSTG |
- |
-65 |
- |
150 |
°C |
Instructions for Use:
Power Supply:
- Ensure the supply voltage (VCC) is within the range of 2.0V to 6.0V.
- Connect the ground (GND) pin to a stable 0V reference.
Input Signals:
- Apply input signals (D, S, R, CP) with voltages that meet the specified VIL and VIH levels.
- Avoid floating inputs; use pull-up or pull-down resistors if necessary.
Output Signals:
- The output signals (Q, Q?) will be driven to either VOH or VOL depending on the state of the flip-flop.
- Ensure the load connected to the outputs does not exceed the maximum current ratings.
Timing:
- The propagation delay times (tpd(s), tpd(r)) are critical for timing considerations in your circuit. Ensure that your clock and control signals are designed to accommodate these delays.
Temperature:
- Operate the device within the specified temperature range (TA) to ensure reliable performance.
- Store the device in an environment within the storage temperature range (TSTG) to prevent damage.
Handling:
- Handle the device with care to avoid static discharge, which can damage the internal circuits.
- Follow proper soldering techniques to avoid overheating during assembly.
Testing:
- Before integrating the SN74HC74DR into your final design, test it in a breadboard or prototype board to verify its functionality and timing characteristics.
By following these guidelines, you can ensure optimal performance and reliability of the SN74HC74DR dual D-type flip-flop in your digital circuits.
(For reference only)
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