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參數(shù)資料
| 型號(hào)： | MPC9120 |
| 廠商： | Motorola, Inc. |
| 英文描述： | 1:10 LVCMOS FANOUT BUFFER |
| 中文描述： | 1:10扇出緩沖器的LVCMOS |
| 文件頁數(shù)： | 1/6頁 |
| 文件大小： | 93K |
| 代理商： | MPC9120 |
SEMICONDUCTOR TECHNICAL DATA
1
REV 0.2
Motorola, Inc. 1997
12/97
The MPC9120 is a 1:10 LVCMOS fanout buffer targeted to support
Intel based Pentium
II
microprocessor chip sets. The device features
10 low skew outputs optimized to drive the clock inputs of standard
unbuffered SO–DIMM SDRAM modules. Standard unbuffered SO–DIMM
SDRAM modules require two clocks per module allowing for the device to
drive up to four modules. The output buffers have been optimized to drive
the load presented by the SDRAM module.
The MPC9120 provides output shut off capabilities via an I2C serial
port for applications which plan to use fewer than four modules and desire
to minimize the power dissipation of the chip. Every output clock can be
individually enabled/disabled through fields in the I2C control registers.
After power up the default state is all outputs enabled. In applications
where this default state is acceptable the I2C ports need not be exercised.
Supports Intel Pentium
and Pentium
II
Processor Architectures
10 Skew Controlled 3.3V Compatible SDRAM Clocks
I2C Serial Bus Interface
Extensive Output Enable Control Capability
Space Efficient 28–Lead SSOP Package
Operating Temperature Range of 0
°
C to 70
°
C
3.3V
±
5% Power Supply
Figure 1. 28–Lead Pinout
(Top View)
1
VDD
28
VDD
2
SDRAM0
27
SDRAM9
3
SDRAM1
26
SDRAM8
4
VSSO
25
VSS
5
VDD
24
VDD
6
SDRAM2
23
SDRAM7
7
SDRAM3
22
SDRAM6
8
VSS
21
VSS
9
BUF_IN
20
OE
10
VDD
19
VDD
11
SDRAM4
18
SDRAM5
12
VSS
17
VSS
13
VDDIIC
16
VSSIIC
14
SDATA
15
SCLOCK
This document contains information on a product under development. Motorola reserves the right to change or
discontinue this product without notice.
1:10 LVCMOS
FANOUT BUFFER
SD SUFFIX
28–LEAD PLASTIC SSOP PACKAGE
CASE 940E–02
FUNCTION TABLE
OE
V1, V2
0
1
High–Z
1x BUF_IN
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| MPC9140 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:1:18 LVCMOS FANOUT BUFFER |
| MPC9229 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:400 MHz Low Voltage PECL Clock Synthesizer |
| MPC9229AC | 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 FSL 400MHz LVPECL Freq. Synthesizer RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
| MPC9229ACR2 | 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 FSL 400MHz LVPECL Freq. Synthesizer RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
| MPC9229EI | 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 FSL 400MHz LVPECL Freq. Synthesizer RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
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