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GTL2008

更新时间： 2024-11-26 03:40:03

品牌	Logo	应用领域
恩智浦 - NXP		/
页数	文件大小	规格书
20页	116K
描述
12-bit GTL to LVTTL translator with power good control and high-impedance LVTTL and GTL outputs

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GTL2008 数据手册

GTL2008; GTL2107

12-bit GTL to LVTTL translator with power good control and

high-impedance LVTTL and GTL outputs

Rev. 02 — 26 September 2006

Product data sheet

1. General description

The GTL2008/GTL2107 is a customized translator between dual Xeon processors,

Platform Health Management, South Bridge and Power Supply LVTTL and GTL signals.

Functionally and footprint identical to the GTL2007, the GTL2008/GTL2107 LVTTL and

GTL outputs were changed to put them into a high-impedance state when EN1 and EN2

are LOW, with the exception of 11BO because its normal state is LOW, so it is forced

LOW. EN1 and EN2 will remain LOW until V_CCis at normal voltage, the other inputs are in

valid states and VREF is at its proper voltage to assure that the outputs will remain

high-impedance through power-up.

Both the GTL2008/GTL2107 and the GTL2007 are derived from the GTL2006. They add

an enable function that disables the error output to the monitoring agent for platforms that

monitor the individual error conditions from each processor. This enable function can be

used so that false error conditions are not passed to the monitoring agent when the

system is unexpectedly powered down. This unexpected power-down could be from a

power supply overload, a CPU thermal trip, or some other event of which the monitoring

agent is unaware.

A typical implementation would be to connect each enable line to the system power good

signal or the individual enables to the VRD power good for each processor.

Typically Xeon processors specify a V_TTof 1.1 V to 1.2 V, as well as a nominal V_refof

0.73 V to 0.76 V. To allow for future voltage level changes that may extend V_refto 0.63 of

V_TT(minimum of 0.693 V with V_TTof 1.1 V) the GTL2008/GTL2107 allows a minimum V_ref

of 0.66 V. Characterization results show that there is little DC or AC performance variation

between these levels.

The GTL2008 is the companion chip to the GTL2009 3-bit GTL Front-Side Bus frequency

comparator that is used in dual-processor Xeon applications.

The GTL2107 is the Intel designation for the GTL2008.

2. Features

I Operates as a GTL to LVTTL sampling receiver or LVTTL to GTL driver

I EN1 and EN2 disable error output

I All LVTTL and GTL outputs are put in a high-impedance state when EN1 and EN2 are

LOW

I 3.0 V to 3.6 V operation

I LVTTL I/O not 5 V tolerant

12 3 4 5 6 7...20

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与GTL2008相关器件

型号	品牌	获取价格	描述	数据表
GTL2008PW	NXP	获取价格	12-bit GTL to LVTTL translator with power good control and high-impedance LVTTL and GTL ou
GTL2008PW,118	NXP	获取价格	GTL2008 - 12-bit GTL to LVTTL translator with power good control and high-impedance LVTTL
GTL2009	NXP	获取价格	3-bit GTL Front-Side Bus frequency comparator
GTL2009PW	NXP	获取价格	3-bit GTL Front-Side Bus frequency comparator
GTL2010	TI	获取价格	10-BIT BIDIRECTIONAL LOW-VOLTAGE TRANSLATOR
GTL2010	NXP	获取价格	10-bit GTL Processor Voltage Clamp
GTL2010_07	TI	获取价格	10-BIT BIDIRECTIONAL LOW-VOLTAGE TRANSLATOR
GTL2010BS	NXP	获取价格	10-bit bidirectional low voltage translator
GTL2010BS-T	NXP	获取价格	NXP bidirectional low-voltage translators
GTL2010DB	ETC	获取价格	VOLTAGE CLAMP\|MOS\|TSSOP\|24PIN\|PLASTIC

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