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參數資料
| 型號： | MPC942CFA |
| 廠商： | MOTOROLA INC |
| 元件分類： | 時鐘及定時 |
| 英文描述： | LOW SKEW CLOCK DRIVER, 18 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32 |
| 封裝： | 7 X 7 MM, 0.80 MM PITCH, TQFP-32 |
| 文件頁數： | 1/3頁 |
| 文件大小： | 82K |
| 代理商： | MPC942CFA |
6
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Order this document
by MPC942C/D
MOTOROLA ADVANCED CLOCK DRIVERS DEVICE DATA
548
Low Voltage 1:18 Clock
Distribution Chip
The MPC942 is a 1:18 low voltage clock distribution chip with 2.5V or
3.3V LVCMOS output capabilities. The device is offered in two versions;
the MPC942C has an LVCMOS input clock while the MPC942P has a
LVPECL input clock. The 18 outputs are 2.5V or 3.3V LVCMOS compat-
ible and feature the drive strength to drive 50
series or parallel termi-
nated transmission lines. With output–to–output skews of 200ps, the
MPC942 is ideal as a clock distribution chip for the most demanding of
synchronous systems. The 2.5V outputs also make the device ideal for
supplying clocks for a high performance Pentium II
microprocessor
based design.
LVCMOS/LVTTL Clock Input
2.5V LVCMOS Outputs for Pentium II Microprocessor Support
150ps Maximum Targeted Output–to–Output Skew
Maximum Output Frequency of 250MHz @ 3.3 VCC
32–Lead TQFP Packaging
Single 3.3V or 2.5V Supply
With a low output impedance (
≈12), in both the HIGH and LOW logic
states, the output buffers of the MPC942 are ideal for driving series termi-
nated transmission lines. With an output impedance of 12
the MPC942
can drive two series terminated transmission lines from each output. This
capability gives the MPC942 an effective fanout of 1:36. The MPC942
provides enough copies of low skew clocks for most high performance
synchronous systems.
The LVCMOS/LVTTL input of the MPC942C provides a more standard LVCMOS interface. The OE pins will place the outputs
into a high impedance state. The OE pin has an internal pullup resistor.
The MPC942 is a single supply device. The VCC power pins require either 2.5V or 3.3V. The 32–lead TQFP package was
chosen to optimize performance, board space and cost of the device. The 32–lead TQFP has a 7x7mm body size with a
conservative 0.8mm pin spacing.
Pentium II is a trademark of Intel Corporation.
Rev 0
MPC942C
LOW VOLTAGE
1:18 CLOCK
DISTRIBUTION CHIP
FA SUFFIX
32–LEAD TQFP PACKAGE
CASE 873A
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| MPC9443FAR2 | LOW SKEW CLOCK DRIVER, 16 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP48 |
| MPC9446FA | LOW SKEW CLOCK DRIVER, 10 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32 |
| MPC9447ACR2 | 9447 SERIES, LOW SKEW CLOCK DRIVER, 9 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32 |
| MPC9448ACR2 | 9448 SERIES, LOW SKEW CLOCK DRIVER, 12 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32 |
| MPC9448AC | 9448 SERIES, LOW SKEW CLOCK DRIVER, 12 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MPC942CFAR2 | 制造商:Integrated Device Technology Inc 功能描述:Clock Fanout Buffer 18-OUT 32-Pin TQFP T/R |
| MPC942P | 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:Low Voltage 1:18 Clock Distribution Chip |
| MPC942PAC | 功能描述:IC CLOCK DIST CHIP 1:18 32-LQFP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 專用 系列:- 標準包裝:1,500 系列:- 類型:時鐘緩沖器/驅動器 PLL:是 主要目的:- 輸入:- 輸出:- 電路數:- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 電源電壓:3.3V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:28-SSOP 包裝:帶卷 (TR) 其它名稱:93786AFT |
| MPC942PACR2 | 功能描述:IC CLK DISTR CHIP LV 1:18 32LQFP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 專用 系列:- 標準包裝:28 系列:- 類型:時鐘/頻率發生器 PLL:是 主要目的:Intel CPU 服務器 輸入:時鐘 輸出:LVCMOS 電路數:1 比率 - 輸入:輸出:3:22 差分 - 輸入:輸出:無/是 頻率 - 最大:400MHz 電源電壓:3.135 V ~ 3.465 V 工作溫度:0°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:64-TFSOP （0.240"，6.10mm 寬） 供應商設備封裝:64-TSSOP 包裝:管件 |
| MPC942PFA | 功能描述:IC CLOCK DISTRIB LV 1:18 32-LQFP RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 專用 系列:- 標準包裝:1,500 系列:- 類型:時鐘緩沖器/驅動器 PLL:是 主要目的:- 輸入:- 輸出:- 電路數:- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 電源電壓:3.3V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:28-SSOP 包裝:帶卷 (TR) 其它名稱:93786AFT |
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