Datasheet > MK74CB177R

MK74CB177R

更新时间： 2024-11-21 15:43:11

品牌	Logo	应用领域
艾迪悌 - IDT		驱动光电二极管逻辑集成电路
页数	文件大小	规格书
4页	47K
描述
Low Skew Clock Driver, CB Series, 7 True Output(s), 0 Inverted Output(s), PDSO28, 0.150 INCH, SSOP-28

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MK74CB177R 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Obsolete	零件包装代码：	SSOP
包装说明：	SSOP,	针数：	28
Reach Compliance Code：	compliant	HTS代码：	8542.39.00.01
风险等级：	5.92	其他特性：	ALSO OPERATABLE AT 3.3V NOM
系列：	CB	输入调节：	STANDARD
JESD-30 代码：	R-PDSO-G28	JESD-609代码：	e0
长度：	9.9 mm	逻辑集成电路类型：	LOW SKEW CLOCK DRIVER
功能数量：	2	反相输出次数：
端子数量：	28	实输出次数：	7
最高工作温度：	70 °C	最低工作温度：
封装主体材料：	PLASTIC/EPOXY	封装代码：	SSOP
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, SHRINK PITCH
峰值回流温度（摄氏度）：	225	传播延迟（tpd）：	6.5 ns
认证状态：	Not Qualified	Same Edge Skew-Max（tskwd）：	0.5 ns
座面最大高度：	1.75 mm	最大供电电压 (Vsup)：	5.5 V
最小供电电压 (Vsup)：	3 V	标称供电电压 (Vsup)：	5 V
表面贴装：	YES	温度等级：	COMMERCIAL
端子面层：	Tin/Lead (Sn/Pb)	端子形式：	GULL WING
端子节距：	0.635 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	30	宽度：	3.9116 mm
Base Number Matches：	1

MK74CB177R 数据手册

MK74CB177

OPTi Buffalo™ Clock Driver

ICRO CLOC K

Description

Features

The MK74CB177 OPTi Buffalo™ is a monolithic high

speed clock driver which is ideal for Pentium™ systems which

use OPTi’s Viper N chip set. It consists of three clock drivers

capable of accepting different inputs to produce one, seven and

eight low-skew, non-inverting outputs. The single

input/output is used to maintain timing with the early CPU

clock. The special power down pin allows for the main PCI

drivers to be stopped for OPTi’s low power mode. When

combined with MicroClock’s MK1438 or other low jitter

clock synthesizer, the two chips form an unequaled high

performance clocking scheme for new processors. This chip

combines low jitter clocks with high fanout and mixed 3.3/5V

outputs for easy system design.

• Tiny 28 pin SSOP (150 mil) package

• Single input to single output for early clock

• Single input to seven output for CPU

• Single input to eight output for PCI

• Like outputs are skew matched to within 250ps

• A, B, and C outputs matched to 500ps

• 3.3V±10% and/or 5V±10% supply voltage

• Power Down stops seven A clock outputs

• Each side (A, B+C) of eight clock drivers can run

from different supply voltages, making it possible

to have 3.3V and 5V amplitude clock outputs

from the same chip

Many new Pentium systems require multiple outputs for CPU

and PCI clocks, plus an early CPU clock for the core logic.

This monolithic solution eliminates any concern for part-to-

part skew matching. The MK74CB177 is packaged in the tiny

28 pin SSOP, which uses the same board space as the narrow

16 pin SOIC. An added feature of the chip is the ability to

produce both 3.3V and 5V amplitude clocks by connecting 5V

to VDDA and 3.3V to VDDBC. See MAN03 for dual voltage

operation.

• Clock speeds up to 66.67 MHz

Family of MicroClock Parts

The MK74CB177 OPTi Buffalo™ is designed to

be used with MicroClock’s clock synthesizer

devices, which will produce the CPU, memory,

and local bus clocks. MicroClock also makes the

MK74CB216 and MK74CB178 clock buffers.

Consult MicroClock for applications support.

Block Diagram

VDDA

VDDB

INA

QA0

INB

QB0

QA1

QA2

QB1

QB2

QB3

QB4

QB5

QA3

QA4

QA5

QA6

QB6

QC0

INC

PDA06 (QA0-QA6)

QA7

GNDB

GNDA

MDS74CB177B

Revision 3038

Printed 3/3/98

MicroClock Division of ICS•1271 Parkmoor Ave.•San Jose•CA•95126•(408)295-9800tel•(408)295-9818fax

12 3 4

中文翻译

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与MK74CB177R相关器件

型号	品牌	获取价格	描述	数据表
MK74CB177RLF	IDT	获取价格	Low Skew Clock Driver, CB Series, 7 True Output(s), 0 Inverted Output(s), PDSO28, 0.150 IN
MK74CB177RTR	IDT	获取价格	Low Skew Clock Driver, CB Series, 7 True Output(s), 0 Inverted Output(s), PDSO28, 0.150 IN
MK74CB177RTRLF	IDT	获取价格	Low Skew Clock Driver, CB Series, 7 True Output(s), 0 Inverted Output(s), PDSO28, 0.150 IN
MK74CB178R	IDT	获取价格	Low Skew Clock Driver, CB Series, 7 True Output(s), 0 Inverted Output(s), PDSO28, 0.150 IN
MK74CB178RTR	IDT	获取价格	Low Skew Clock Driver, CB Series, 7 True Output(s), 0 Inverted Output(s), PDSO28, 0.150 IN
MK74CB178RTRLF	IDT	获取价格	Low Skew Clock Driver, CB Series, 7 True Output(s), 0 Inverted Output(s), PDSO28, 0.150 IN
MK74CB214	ICSI	获取价格	Dual 1 to 7 Buffalo⑩ Clock Driver
MK74CB214R	ICSI	获取价格	Dual 1 to 7 Buffalo⑩ Clock Driver
MK74CB214R	IDT	获取价格	Low Skew Clock Driver, CB Series, 7 True Output(s), 0 Inverted Output(s), CMOS, PDSO20, 0.
MK74CB214RLF	IDT	获取价格	Low Skew Clock Driver, CB Series, 7 True Output(s), 0 Inverted Output(s), CMOS, PDSO20, 0.

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