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AM79C985JC中文资料超威半导体数据手册PDF规格书
AM79C985JC规格书详情
GENERAL DESCRIPTION
The enhanced Integrated Multiport Repeater Plus (eIMR+) device is a VLSI integrated circuit that provides a system-level solution to designing managed multiport repeaters. The device integrates the repeater functions specified in Section 9 of the IEEE 802.3 standard and Twisted Pair Transceiver functions complying with the 10BASE-T standard.
DISTINCTIVE CHARACTERISTICS
■ Repeater functions compliant with IEEE 802.3 Repeater Unit specifications
■ Direct interface with the Am79C987 Hardware Implemented Management Information Base (HIMIB™) device for building a basic managed multiport repeater
■ Full software backwards compatibility with existing hub designs using Integrated Multiport Repeater Plus (IMR+™)/HIMIB devices
■ Network management and optional feature accessibility through a dedicated serial management port
■ Four integral 10BASE-T transceivers with on chip filtering eliminating the need for external filter modules on the 10BASE-T transmit-data (TXD) and receive-data (RXD) lines
■ One Reversible Attachment Unit Interface (RAUI™) port used either as a standard IEEE compliant AUI port for connection to a Medium Attachment Unit (MAU) or a reversed port for direct connection to a Media Access Controller (MAC)
■ Low cost suitable for managed multiport repeater designs
■ Number of repeater ports easily expandable with support for up to seven eIMR+ devices without the need for an external arbiter
■ All ports capable of being individually isolated (partitioned) in response to excessive collision conditions or fault conditions
■ Flexible LED support for individual port status and network utilization LEDs
■ Programmable extended distance mode on RXD lines allowing connection to cables longer than 100 meters
■ Link Test function and Link Test pulse transmission capable of being disabled through the management port allowing devices that do not implement the Link Test function to work with the eIMR+ device
■ Programmable automatic polarity detection and correction option permitting automatic recovery from wiring errors
■ Full amplitude and timing regeneration for retransmitted waveforms
■ CMOS device with a single +5-V supply
产品属性
- 型号:
AM79C985JC
- 制造商:
AMD
- 制造商全称:
Advanced Micro Devices
- 功能描述:
enhanced Integrated Multiport Repeater Plus(eIMR+⑩)
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
AMD |
24+ |
NA/ |
188 |
优势代理渠道,原装正品,可全系列订货开增值税票 |
询价 | ||
AMD |
23+ |
PLCC84 |
20000 |
全新原装假一赔十 |
询价 | ||
AMD |
2020+ |
PLCC |
4500 |
百分百原装正品 真实公司现货库存 本公司只做原装 可 |
询价 | ||
AMD |
25+ |
PLCC84 |
250 |
原装正品,欢迎来电咨询! |
询价 | ||
AMD |
PLCC84 |
99+ |
57 |
全新原装进口自己库存优势 |
询价 | ||
AMD |
24+ |
PLCC |
880000 |
明嘉莱只做原装正品现货 |
询价 | ||
AMD |
0015+ |
PLCC |
188 |
一级代理,专注军工、汽车、医疗、工业、新能源、电力 |
询价 | ||
AMD |
23+ |
PLCC |
7000 |
绝对全新原装!100%保质量特价!请放心订购! |
询价 | ||
AMD |
23+ |
PLCC |
4500 |
全新原装、诚信经营、公司现货销售! |
询价 | ||
AMD |
24+ |
PLCC84 |
3500 |
原装现货,可开13%税票 |
询价 |