7476 Dual JK Flip-Flop with Preset and Clear
- Contains two independent JK flip-flops
- Features asynchronous preset and clear inputs
- Operates on standard TTL logic levels
- Edge-triggered on clock input
- Commonly used in counters, registers, and memory circuits
18,00 EGP
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Description
7476 Dual JK Flip-Flop with Preset and Clear – Product Overview
The 7476 is a dual JK flip-flop IC featuring preset and clear inputs. It provides two independent JK flip-flops with asynchronous set (preset) and clear functions, making it suitable for various synchronous and asynchronous digital logic applications.
⚙️ Key Features
-
✅ Contains 2 independent JK flip-flops
-
✅ Includes asynchronous preset (set) and clear inputs
-
✅ Edge-triggered on the clock input (positive edge)
-
✅ Compatible with TTL logic levels
-
✅ Typical propagation delay ~15 ns
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✅ Standard DIP-14 package for easy handling and integration
📋 Specifications
| Parameter | Description |
|---|---|
| IC Number | 7476 |
| Number of Flip-Flops | 2 |
| Flip-Flop Type | JK Flip-Flop |
| Inputs | J, K, Clock, Preset, Clear |
| Outputs | Q, Q’ (complement) |
| Operating Voltage | 4.75V to 5.25V (Typical 5V) |
| Propagation Delay | Approx. 15 ns |
| Logic Family | TTL (Transistor-Transistor Logic) |
| Package Type | DIP-14 |
🎯 Applications
-
Counters and frequency dividers
-
Shift registers and memory storage elements
-
Control logic circuits
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Timing and sequencing applications
-
State machines and synchronous logic
📦 Package Includes
-
1 × 7476 Dual JK Flip-Flop IC (DIP-14)
Pin Layout
Pin Description
| Pin Number | Description |
|---|---|
| 1 | Clock 1 Input |
| 2 | Preset 1 Input |
| 3 | Clear 1 Input |
| 4 | J1 Input |
| 5 | Vcc – Positive Power Supply |
| 6 | Clock 2 Input |
| 7 | Preset 2 Input |
| 8 | Clear 2 Input |
| 9 | J2 Input |
| 10 | Complement Q2 Output |
| 11 | Q2 Output |
| 12 | K2 Input |
| 13 | Ground |
| 14 | Complement Q1 Output |
| 15 | Q1 Output |
| 16 | K1 Input |
Technical Data
Absolute Maximum Ratings
| Supply Voltage | 7V |
| Input Voltage | 5.5V |
| Operating Free Air Temperature | 0°C to +70°C |
| Storage Temperature Range | -65°C to +150°C |
Recommended Operating Conditions
| Symbol | Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Vcc | Supply Voltage | 4.75 | 5 | 5.25 | V |
| Vih | HIGH Level Input Voltage | 2 | V | ||
| Vil | LOW Level Input Voltage | 0.8 | V | ||
| Ioh | HIGH Level Output Current | -0.4 | mA | ||
| Iol | LOW Level Output Current | 16 | mA | ||
| Ta | Free Air Operating Temperature | 0 | 70 | °C |
Electrical Characteristics
| Symbol | Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|---|
| Vi | Input Clamp Voltage | Vcc=Min Ii=-12mA | -1.5 | V | ||
| Voh | HIGH Level Output Voltage | Vcc=Min Ioh=MAX Vil=MAX | 2.4 | 3.4 | V | |
| Vol | LOW Level Output Voltage | Vcc=Min Iol=MAX Vih=MAX | 0.2 | 0.4 | V | |
| Ii | Input Current@MAX Input Voltage | Vcc=Max Vi=5.5V | 1 | mA | ||
| Iih | HIGH Level Input Current | Vcc=Max Vi=2.4V | 40 | µA | ||
| Iil | LOW Level Input Current | Vcc=Max Vi=0.4V | -1.6 | mA | ||
| Ios | Short Circuit Output Current | Vcc=Max | -18 | -55 | mA | |
| Icch | Supply Current with Outputs HIGH | Vcc=Max | 4 | 8 | mA | |
| Iccl | Supply Current with Outputs LOW | Vcc=Max | 12 | 22 | mA |
Switching Characteristics at Vcc=5V,Ta=25°C
| Symbol | Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|---|
| tplh | Propagation Delay Time LOW-to-HIGH Level Output | Cl=15pF Rl=400R | 22 | nS | ||
| tphl | Propagation Delay Time HIGH-to-LOW Level Output | Cl=15pF Rl=400R | 15 | nS |
Specification
General
| Weight Weight | 0,0012 g |
|---|---|
Dimensions
|
1,93 × 0,64 × 0,33 mm |
| Product Name |
7476 Dual JK Flip-Flop with Preset and Clear |
| Logic Family |
TTL |
| Number of Flip-Flops |
2 (Dual) |
| Type |
JK Flip-Flop |
| Features |
Preset and Clear Inputs |
| Supply Voltage |
4.75V – 5.25V (Typical 5V) |
| Input Voltage (VIH/VIL) |
2V min / 0.8V max |
| Output Current (IOL/IOH) |
16mA / -0.4mA |
| Propagation Delay |
15ns (typical) |
| Operating Temperature Range |
0°C – +70°C |
| Package Type |
DIP-14 |
| Mounting Type |
Through-Hole |
| Output Type |
TTL Compatible |
| RoHS Compliant |
Yes |
