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參數(shù)資料
| 型號(hào)： | MPC9140 |
| 廠商： | Motorola, Inc. |
| 元件分類： | FPGA |
| 英文描述： | 80000 SYSTEM GATE 1.5 VOLT FPGA |
| 中文描述： | 1:18扇出緩沖器的LVCMOS |
| 文件頁數(shù)： | 1/6頁 |
| 文件大小： | 105K |
| 代理商： | MPC9140 |
SEMICONDUCTOR TECHNICAL DATA
1
REV 0.2
Motorola, Inc. 1997
6/97
The MPC9140 is a 1:18 LVCMOS fanout buffer targeted to support
Intel based Pentium
II
microprocessor chip sets. The device features
18 low skew outputs optimized to drive the clock inputs of standard
unbuffered SDRAM modules. Standard unbuffered SDRAM modules
require four 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 MPC9140 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
18 Skew Controlled 3.3V Compatible SDRAM Clocks
I2C Serial Bus Interface
Extensive Output Enable Control Capability
Space Efficient 48–Lead SSOP Package
Operating Temperature Range of 0
°
C to 70
°
C
3.3V
±
5% Power Supply
48
1
NC
NC
VDD
SDRAM15
SDRAM14
VSS
VDD
SDRAM13
SDRAM12
VSS
OE
VDD
SDRAM11
SDRAM10
VSS
VDD
SDRAM9
SDRAM8
VSS
VDD
SDRAM17
VSS
VSS
SCLOCK
NC
NC
VDD
47
2
46
3
45
4
SDRAM0
SDRAM1
44
5
43
6
VSS
VDD
42
7
41
8
SDRAM2
SDRAM3
40
9
39
10
VSS
38
11
BUF_IN
VDD2
SDRAM4
SDRAM5
37
12
36
13
35
14
34
15
VSS
VDD
33
16
32
17
SDRAM6
SDRAM7
31
18
30
19
VSS
VDD
29
20
28
21
SDRAM16
27
22
VSS
VDD
26
23
25
24
SDATA
Figure 1. 48–Lead Pinout
(Top View)
This document contains information on a product under development. Motorola reserves the right to change or
discontinue this product without notice.
1:18 LVCMOS
FANOUT BUFFER
SD SUFFIX
48–LEAD PLASTIC SSOP PACKAGE
CASE 1215–01
FUNCTION TABLE
OE
V1, V2
0
1
High–Z
1x BUF_IN
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| MPC9229EIR2 | 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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