• 8-Bit Serial-In Parallel-Out Shift Register with D-Type Storage Register.
• Shift Register with Direct Clear for quick data resetting.
• Accurate operation from DC to 20MHz, ensuring high-speed performance.
• 3-State Outputs for flexible bus driving.

The 6N137 High Speed Optocoupler is a reliable component designed for efficient electrical isolation and high-speed data transmission. With a data rate of 10MBd and a current transfer ratio of 1600%, it ensures robust performance. This optocoupler comes in a PDIP-8 package for through hole mounting.

Key Features:

• Manufacturer: Vishay
• Product Category: Optocouplers
• RoHS Compliant
• Data Rate: 10MBd
• Current Transfer Ratio: 1600%
• Maximum Forward Diode Voltage: 1.7V
• Maximum Reverse Diode Voltage: 5V
• Maximum Power Dissipation: 85mW
• Operating Temperature: -40°C to +100°C
• Package / Case: PDIP-8
• Fall Time: 7ns
• Forward Current: 20mA
• Input Type: AC/DC
• Isolation Voltage: 5300Vrms
• Maximum Continuous Output Current: 50mA
• Minimum Forward Diode Voltage: 1.1V
• Number of Channels: 1
• Output Device: Photo IC
• Rise Time: 23ns

• Logic type: AND/OR Gate with 4 circuits
• Dual input channels per circuit
• Wide voltage supply range: 3V to 18V
• Output current: High/Low at 6.8mA

The STK4141 II 2-Channel 25W AF Power Amplifier, made in Korea, provides reliable and high-quality audio amplification for both home and professional environments. Experience crisp and powerful sound with this top-tier amplifier.

The TDA2025 Audio Amplifier is a versatile component designed for high-quality stereo sound. Key features include:

• Class AB amplifier
• Operates with single power supply (3V to 15V)
• High channel separation
• Very low switch-on/off noise
• Max gain of 45 dB with adjustable external resistor
• Soft clipping
• Thermal protection
• Output power: 2W at 6V, 2.3W at 9V, 0.1W at 3V (RL = 4Ω)

The Microchip ATmega 88 is a high-performance 8-bit AVR RISC-based microcontroller featuring:

• 8KB ISP flash memory with read-while-write capabilities
• 512B EEPROM and 1KB SRAM
• 23 general-purpose I/O lines and 32 general-purpose working registers
• Three flexible timer/counters with compare modes
• Internal and external interrupts
• Serial programmable USART, byte-oriented 2-wire serial interface, SPI serial port
• 6-channel 10-bit A/D converter (8-channels in TQFP and QFN/MLF packages)
• Programmable watchdog timer with internal oscillator
• Five software-selectable power-saving modes

Operating voltage: 2.7-5.5 volts. Achieves throughputs approaching 1 MIPS per MHz.

• 2K Memory, 256 x 8 bits
• Two-Wire Serial Interface
• Write Protect Pin for Hardware Data Protection

Key Features:

• LA4597 IC Audio Power Amplifier by Sanyo™.
• 2-Channel AF Power Amplifier.
• Equivalent to SONY 5-875-230-39, NTE7204.
• New Condition.
• ZIP-13 package.

MCP23S17 16-Bit I/O Expander with SPI Interface

The MCP23S17 is a versatile 16-bit input/output port expander, featuring an SPI interface and interrupt output capabilities. It is perfect for expanding GPIO on microcontrollers and processors. Key features include:

• 16-bit input/output port expander with interrupt output
• Cascadable for up to 8 devices on one bus
• 25mA sink/source capability per I/O
• Supports up to 10MHz SPI clock speeds

STK4231 II 2-Channel 100W Min AF Power Amplifier delivers high-performance audio for your sound system. With 100 watts per channel, it's perfect for home audio systems and car audio setups, offering excellent sound quality.

• 2-Channel 100W Min AF Power Amplifier
• High-quality audio output
• Built-in muting circuit to reduce pop noise
• Requires dual power supply
• Compact design

Enhance your audio experience with this powerful amplifier.

Discover the MCP23017, a versatile 16-bit parallel I/O port expander designed for I2C bus applications in Bangladesh. With two 8-bit ports (PORTA and PORTB) and high-speed I2C™ interfaces up to 1.7MHz, this device supports bidirectional I/O operations and can accommodate up to eight devices on the bus.

• Multifunction capability for versatile use in different applications.
• Mutually exclusive outputs for more efficient circuit design.
• Demultiplexing capability for handling multiple signal channels.
• Input clamp diodes to limit high-speed termination effects.

• Active product status for reliable application
• NAND Gate logic type with 2 circuits
• 4 input channels per circuit
• Wide supply voltage range: 3V to 18V

CD4011 Quad 2-Input NAND Gate

The CD4011 Quad 2-Input NAND Gate is an essential component for various electronic applications. Featuring high noise immunity and standardized symmetrical output characteristics, this IC ensures reliable performance across different voltage levels. Key features include:

• VDD: 10 V
• Buffered inputs and outputs
• Symmetrical output characteristics
• Maximum input current: 1 µA at 18 V over full package temperature range
• Quiescent current tested at 20 V
• 5-V, 10-V, and 15-V parametric ratings
• High noise immunity

Product Overview: The 74139/74HC139/74LS139 Dual 2-4 Line Decoder/Demux IC is a high-efficiency integrated circuit designed for decoding and demultiplexing applications in digital systems.

Key Features:

• Type: Decoder/Demultiplexer
• Circuit: 1 x 2:4
• Independent Circuits: 2
• Current - Output High, Low: 5.2mA, 5.2mA
• Voltage Supply: 2 V ~ 6 V
• Operating Temperature: -55°C ~ 125°C
• Package: 16-PDIP
• Mounting Type: Through Hole
• Supplier: SICSTOCK

The 78M05 SMD 7805 Voltage Regulator is a reliable component for providing stable 5V output. With a TO-252 footprint and a maximum output current of 500mA, it ensures efficient performance in a wide range of electronic applications.

• Chip: 78M05
• Number of output channels: 1
• Number of Pins: 3
• Output Current: 500mA
• Footprint: TO-252
• Operating temperature range: -40°C to +125°C
• Voltage Rectifier Type: 3-Terminal Fixed Positive
• Power supply voltage: 7V-20V

• 8-Bit Serial-In Parallel-Out Shift Register with D-Type Storage Register.
• Shift Register with Direct Clear for quick data resetting.
• Accurate operation from DC to 20MHz, ensuring high-speed performance.
• 3-State Outputs for flexible bus driving.

The 6N137 High Speed Optocoupler is a reliable component designed for efficient electrical isolation and high-speed data transmission. With a data rate of 10MBd and a current transfer ratio of 1600%, it ensures robust performance. This optocoupler comes in a PDIP-8 package for through hole mounting.

Key Features:

• Manufacturer: Vishay
• Product Category: Optocouplers
• RoHS Compliant
• Data Rate: 10MBd
• Current Transfer Ratio: 1600%
• Maximum Forward Diode Voltage: 1.7V
• Maximum Reverse Diode Voltage: 5V
• Maximum Power Dissipation: 85mW
• Operating Temperature: -40°C to +100°C
• Package / Case: PDIP-8
• Fall Time: 7ns
• Forward Current: 20mA
• Input Type: AC/DC
• Isolation Voltage: 5300Vrms
• Maximum Continuous Output Current: 50mA
• Minimum Forward Diode Voltage: 1.1V
• Number of Channels: 1
• Output Device: Photo IC
• Rise Time: 23ns

• Logic type: AND/OR Gate with 4 circuits
• Dual input channels per circuit
• Wide voltage supply range: 3V to 18V
• Output current: High/Low at 6.8mA

The STK4141 II 2-Channel 25W AF Power Amplifier, made in Korea, provides reliable and high-quality audio amplification for both home and professional environments. Experience crisp and powerful sound with this top-tier amplifier.

The TDA2025 Audio Amplifier is a versatile component designed for high-quality stereo sound. Key features include:

• Class AB amplifier
• Operates with single power supply (3V to 15V)
• High channel separation
• Very low switch-on/off noise
• Max gain of 45 dB with adjustable external resistor
• Soft clipping
• Thermal protection
• Output power: 2W at 6V, 2.3W at 9V, 0.1W at 3V (RL = 4Ω)