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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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UPD98405 датащи(PDF) 1 Page - NEC |
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UPD98405 датащи(HTML) 1 Page - NEC |
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1 / 64 page  The information in this document is subject to change without notice. Before using this document, please confirm that this is the latest version. Not all devices/types available in every country. Please check with local NEC representative for availability and additional information. MOS INTEGRATED CIRCUIT µµµµPD98405 155M ATM INTEGRATED SAR CONTROLLER Document No. S12689EJ2V0DS00 (2nd edition) Date Published April 1999 N CP(K) Printed in Japan DATA SHEET 1997, 1999 © The mark shows major revised points. DESCRIPTION The µPD98405 (NEASCOT-S20TM) is a high-performance SAR chip that performs segmentation and reassembly of ATM cells. It has a PCI bus interface, a SONET/SDH 155-Mbps framer, and a clock recovery circuit and supports an ABR function in hardware. The µPD98405 conforms to ATM Forum and has the functions of the AAL-5 SAR sublayer, ATM layer, and TC sublayer. FEATURES • Conforms to ATM Forum. • Host bus interface supporting PCI bus/generic bus. - PCI interface (5/3.3 V, 32/64 bits, 33 MHz): Conforms to PCI Specification 2.1 - Generic bus interface (5/3.3 V, 32 bits, 33 MHz) • AAL-5 SAR sublayer, ATM layer, and TC sublayer functions • Hardware support of AAL-5 processing • Software support of non-AAL-5 traffic • SONET STS-3c/SDH STM-1 155-Mbps framer function • Clock recovery/clock synthesizer function • Supports up to 32 K virtual channels (VCs) • Sixteen traffic shapers for VBR for transmission scheduling • Hardware support of CBR/VBR/ABR/UBR service • Supports multi-cell burst transfer for transmission and reception • MIB counter function • Supports LAN emulation function • Receive FIFO of 96 cells • External PHY devices connectable: UTOPIA Level-1 interface • 0.35- µm CMOS process, +5-/3.3-V power supply - Bus interface +5 V: +5-/3.3-V power supply - Bus interface +3.3 V: +3.3-V power supply • 304-pin plastic QFP ORDERING INFORMATION Part Number Package µPD98405GL-PMU 304-pin plastic QFP (0.5-mm fine pitch) (40 × 40 mm) |
Аналогичный номер детали - UPD98405 |
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Аналогичное описание - UPD98405 |
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