參數(shù)資料
型號(hào)： UPD72042AGT
廠商： NEC Corp.
英文描述： LSI DEVICES FOR Inter Equipment BusTM (IEBusTM) PROTOCOL CONTROL
中文描述： LSI器件間設(shè)備BusTM（IEBusTM）協(xié)議控制
文件頁(yè)數(shù)： 9/92頁(yè)
文件大?。?/td> 541K
代理商： UPD72042AGT
μ
PD72042A, 72042B
9
DATA SHEET S13990EJ2V0DS00
2.2 IEBus COMMUNICATION PROTOCOL
The IEBus is outlined below.
Communication method: Half duplex asynchronous communication
Multi-master method
All units connected to the IEBus can transmit data to every other connected unit.
Broadcast function (one-unit-to-multiple-units communication)
Group broadcast
: Broadcast to a specific group of units
General broadcast
: Broadcast to all units
Two modes, each offering different transmission speeds, can be selected.
Maximum number of bytes
transmitted (bytes/frame)
Mode 0
Approx. 3.9 Kbps
Approx. 4.1 Kbps
16
Mode 1
Approx. 17 Kbps
Approx. 18 Kbps
32
f
X
= 6 MHz
f
X
= 6.29 MHz
Access control: Carrier Sense Multiple Access with Collision Detection (CSMA/CD)
Bus mastership priority is as follows:
1 Broadcast takes priority over ordinary communication (one-unit-to-one-unit communication).
2 Units having lower master addresses have a higher priority.
Communication scale
Number of units
Cable length
Load capacity
: 50 max
: 150 m max (when twisted-pair cable is used <resistance 0.1
/m or less>)
: 8000 pF max <between BUS- and BUS+>, f
X
= 6 MHz
7100 pF max <between BUS- and BUS+>, f
X
= 6.29 MHz
: 120
Terminating resistance
Caution For the
μ
PD72042A and
μ
PD72042B, as a protective resistance, connect a 180-
resistor in series
with the BUS– and BUS+ pins.
相關(guān)PDF資料
PDF描述
UPD72042B LSI DEVICES FOR Inter Equipment BusTM (IEBusTM) PROTOCOL CONTROL
UPD72065GC Floppy Disk Controller
UPD72065BGC-3B6 RTS Series - Econoline Unregulated DC-DC Converters; Input Voltage (Vdc): 24V; Output Voltage (Vdc): 15V; Power: 2W; Assembly; High Power Density; Optional Continuous Short Circuit Protected; Efficiency to 85%
UPD72065 CMOS FLOPPY DISK CONTROLLER
UPD72065B CMOS FLOPPY DISK CONTROLLER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
UPD72042BGT-A 制造商:Renesas Electronics 功能描述:LSI Device 16-Pin SOP 制造商:Renesas Electronics 功能描述:LSI Device 16-Pin SOP Cut Tape
UPD72042GT(A) 制造商:Renesas Electronics Corporation 功能描述:
UPD720902AF5-667-JF2-E3-A 功能描述:IC ADVANCED MEMORY BUFFER D1 RoHS:是 類(lèi)別:集成電路 (IC) >> 接口 - 專用 系列:* 標(biāo)準(zhǔn)包裝:90 系列:- 應(yīng)用:PCI 至 PCI 橋 接口:PCI 電源電壓:3 V ~ 3.6 V 封裝/外殼:257-LFBGA 供應(yīng)商設(shè)備封裝:257-BGA MICROSTAR（16x16） 包裝:托盤(pán) 安裝類(lèi)型:表面貼裝 產(chǎn)品目錄頁(yè)面:882 (CN2011-ZH PDF) 其它名稱:296-19316
UPD72255YF1-GA5-A 制造商:Renesas Electronics Corporation 功能描述:
UPD7225G 制造商:Panasonic Industrial Company 功能描述:IC
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*