The 74LS76 is a dual JK flip-flop IC with preset (set) and clear inputs, part of the 74LS series of TTL logic ICs. It is commonly used in digital circuits for storing binary information and implementing sequential logic. Technical Specifications: Dual Flip-Flops: Contains two independent JK flip-flops. Toggle Mode: Operates in various modes, including toggle, which is useful for counters and frequency division. Preset (Set) and Clear Inputs: Allows asynchronous setting or resetting of the output, regardless of the clock signal. Edge Triggering: Triggered on the negative edge (falling edge) of the clock signal. TTL-Compatible: Can interface directly with other TTL devices. Pin Configuration (Typical for DIP Package): Pin No. Symbol Description 1 CLR1 Clear input for flip-flop 1 2 CLK1 Clock input for flip-flop 1 3 J1 J input for flip-flop 1 4 K1 K input for flip-flop 1 5 Q1 Output for flip-flop 1 6 /Q1 Inverted output for flip-flop 1 7 GND Ground 8 CLR2 Clear input for flip-flop 2 9 CLK2 Clock input for flip-flop 2 10 J2 J input for flip-flop 2 11 K2 K input for flip-flop 2 12 Q2 Output for flip-flop 2 13 /Q2 Inverted output for flip-flop 2 14 VCC Power Supply ( 5V) Truth Table: J K Output on Negative Clock Edge 0 0 No change 0 1 Reset (Q = 0) 1 0 Set (Q = 1) 1 1 Toggle (Q changes state) Applications: Frequency Division: Divide input frequency by 2 using toggle mode. Counters: Useful in synchronous or ripple counter circuits. Shift Registers: For data storage and transfer. Memory Storage: As part of memory latches or data registers. Notes: The preset (SET) and clear inputs are active-low. A proper connection to ground and VCC is essential to avoid erratic behavior. Always consider debounce circuitry when designing with mechanical switches as clock inputs. Package Includes: 1 Piece-74LS76 Dual JK Flip-Flop with Set and Clear IC -7476 IC
| Brands | |
|---|---|
| Color | |
| Special Filters |
| Power Input | 100 – 240V ̴ 50/60 Hz |
| Signal-to-Noise Ratio | > 80dB |
| Output power (W) | 100W RMS (IEC60268) |
| Dynamic frequency response range (Hz) | 40Hz – 20kHz (-6dB) |
| Frequency Response | 40Hz – 20kHz (-6dB) |
| Transducer | 1 x 5.25 inch (135mm) woofers, 2 x 1 inch (25mm) Dome tweeters |
| Dimensions (Width x Height x Depth) (cm) | 32.0 x 33.9 x 26.3 |
| Dimensions (Width x Height x Depth) (in) | 12.58 x 13.33 x 10.35 |
| Weight (kgs) | 6.4 |
| Weight (lbs) | 14.11 |
| Aux-In | 370 mV RMS (3.5mm connector) |
| Mic-In | 20 mV RMS |
| Guitar-In | 100 mV RMS |
| Bluetooth Input (dBFS) | -9 |
| USB Input (dBFS) | -9 |
| USB Format | FAT16, FAT32 |
| Bluetooth Profile | A2DP V1.4, AVRCP V1.6(SW), TMAP1.0, PBP1.0 |
| Bluetooth Transmitter Frequency Range (GHz) | 2.402GHZ~2.480 |
| Bluetooth Transmitter Modulation | GFSK, π/4 DQPSK, 8DPSK ,BLE1M, BLE2M |
| Bluetooth Transmitter Power | ≤ 16 dBm (EIRP) |
| Bluetooth version | 5.4 |
| Charging time (hours from empty) | < 3.5 |
| Cabel Type | AC power cable (type varies by regions) |
| Cable Length (ft) | 6.6 |
| Cable Length (m) | 2 |
| Battery Type | JBL Battery 200, Li-ion Battery(7.4V/4722mah) |
| Battery Charge Time (hours) | 3.5 |
| Maximum music playing time (hrs) | 15 |




