E4809-436-014-A Okuma
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The Okuma E4809-436-014-A Main Card is a high-performance component designed for industrial processing with a 5V DC power supply and advanced memory management. It integrates 16 NEC D41256D DRAM ICs for enhanced memory efficiency. Its 74LS244N octal buffer ensures smooth signal transmission for reliable processing and control.
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Product Description:
The Okuma E4809-436-014-A Main Card is a key component in the OPUS 5000 series that is designed for industrial grade processing and memory management. It features a multi layer FR4 PCB construction with a green solder mask.
The E4809-436-014-A main card is approximately 17 cm in length and 7 cm in width. It has two long dual row socket connectors on the backside for interfacing. This ensures seamless communication with the main system. Four circular mounting holes are located at each corner that provides mechanical stability. This card is built with advanced memory and logic components for reliable performance. It features 16 NEC D41256D DRAM ICs each with a 256 K bit capacity arranged in two parallel rows to enhance memory efficiency. For data buffering, the SN74LS244N octal buffer and line driver is implemented. This ensures smooth signal transmission between memory and processing units. Additional logic ICs include 74LS500P, a custom IC for control logic and HD74LS837P which aids in address decoding and synchronization. The bus control and address decoding functions are likely handled by a combination of 74LS244N and 74LS500P ICs. The integration of these logic components enhances this card's capability to process and transfer data accurately.
The power and passive components of this E4809-436-014-A main card contribute to its stable operation. The board is powered via a backplane connector supporting a 5 V DC power supply suitable for TTL logic ICs. Noise suppression and circuit stability are achieved through 0.1 µF ceramic bypass capacitors. A 10.7µF tantalum or electrolytic capacitor is also incorporated that serves as a power filter to regulate voltage fluctuations. The well structured power design of this card ensures minimal signal interference.
