Datasheet > TSB21LV03CMHV

TSB21LV03CMHV

更新时间： 2024-11-27 20:53:11

品牌	Logo	应用领域
德州仪器 - TI		驱动接口集成电路驱动器
页数	文件大小	规格书
3页	62K
描述
IEEE 1394-1995, 3.3V, 3-Port, 100/200Mbps Physical Layer Controller 68-CFP -55 to 125

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TSB21LV03CMHV 技术参数

是否无铅：	含铅	生命周期：	Obsolete
零件包装代码：	QFP	包装说明：	QFF,
针数：	68	Reach Compliance Code：	unknown
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.62	差分输出：	YES
驱动器位数：	6	输入特性：	DIFFERENTIAL SCHMITT TRIGGER
接口集成电路类型：	LINE TRANSCEIVER	接口标准：	IEEE 1394
JESD-30 代码：	S-CQFP-F68	功能数量：	3
端子数量：	68	最高工作温度：	125 °C
最低工作温度：	-55 °C	封装主体材料：	CERAMIC, METAL-SEALED COFIRED
封装代码：	QFF	封装形状：	SQUARE
封装形式：	FLATPACK	认证状态：	Not Qualified
最大接收延迟：		接收器位数：	6
最大供电电压：	3.6 V	最小供电电压：	2.7 V
标称供电电压：	3 V	表面贴装：	YES
温度等级：	MILITARY	端子形式：	FLAT
端子位置：	QUAD	Base Number Matches：	1

TSB21LV03CMHV 数据手册

ERRATA

TO THE TSB21LV03C DATA SHEET

(TEXAS INSTRUMENTS LITERATURE NO. SLLS331, FEBRUARY 1999)

This document contains corrections and additions to information in the TSB21LV03C data sheet (TI Literature

Number SLLS331, FEBRUARY 1999).

a. The SUBACTION_GAP on the TSB21LV03C occurs 40 ns prior to the SUBACTION_GAP specified in the

IEEE 1394-1995 STD. This does not cause a problem in real life applications. The PHY in the network starts

to arbitrate for the bus during a fairness interval after a SUBACTION_GAP and ARB_DELAY time. The

SUBACTION_GAP plus ARB_DELAY time is always larger than the SUBACTION_GAP of IEEE 1394-1995

PHY. This ensures that all nodes in the network detect a SUBACTION_GAP.

b. The TSB21LV03C detection of a ARB_RESET_GAP is 20 ns to 1200 ns longer than the time specified IEEE

1394-1995 STD. The delay is dependent on the gap count values, and does not occur when the gap count

is 1. TSB21LV03C starts to arbitrate for the bus after ARB_RESET_GAP and ARB_DELAY time at the end

of the fairness interval. The TSB21LV03C delays the arbitration for the bus by 80 ns more than specified

in the IEEE 1394-1995 STD. This does not cause problems in real-life applications. This timing ensures that

all the nodes detect an ARB_RESET_GAP.

c. The DATA_END time measured is 20 ns less than the time specified in the IEEE 1394-1995 STD. This does

not cause problems in real-life applications.

d. RESET_WAIT: The delay in the RESET_WAIT time makes the TSB21LV03C more likely to be root unless

another PHY on the bus has its root holdoff bit set. This does not cause any problems in real-life applications.

e. TPBias leakage. If the TSB21LV03C PHY is powered on, connected to an active IEEE 1394-1995 PHY

supplying TPBias, and then powered down, the TSB21LV03C may not power up correctly when power is

again applied to the device. This is caused by the TPBias from the connected node partially powering the

TSB21LV03C. This only occurs if the method of resetting the TSB21LV03C is a single 0.1-μF capacitor

connected from RESET to PHY GND. If the reset line is actively driven, instead of only a passive capacitor,

this problem will not occur.

Workaround:

1. To ensure the TSB21LV03C properly powers back up when not actively driving the RESET terminal, the

schematic with the TSB21LV03C should include an approximately 110-kΩ resistor connected from the

RESET terminal to PHY GND. This resistor will be in parallel with the recommended 0.1-μF capacitor.

2. If the boards are designed with the capability of powering the PHY from bus power, and if bus power supply

will always be provided in the system, this will keep the PHYs powered at all times and the leakage problem

will not occur.

****************TI INTERNAL ********************

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Printed in U.S.A.

SLLS340 - FEBRUARY 1999

12 3

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与TSB21LV03CMHV相关器件

型号	品牌	获取价格	描述	数据表
TSB21LV03CMHVB	TI	获取价格	暂无描述
TSB21LV03CMHVB	ROCHESTER	获取价格	TRIPLE LINE TRANSCEIVER, CQFP68, CERAMIC, QFP-68
TSB21LV03CPM	TI	获取价格	IEEE 1394-1995 TRIPLE-CABLE TRANSCEIVER/ARBITER
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TSB21LV03PM	TI	获取价格	Three-Port 200 MBPS Transceiver/Arbiter 64-LQFP
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TSB2203X6MMX30M	ETC	获取价格	SCHAUMSTOFFSTREIFEN PVC
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TSB2204.5X19MMX20M	ETC	获取价格	SCHAUMSTOFFSTREIFEN PVC
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