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MC100E445 PDF预览

MC100E445

更新时间: 2024-11-20 05:10:27
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安森美 - ONSEMI 转换器
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13页 156K
描述
5V ECL 4-Bit Serial/Parallel Converter

MC100E445 数据手册

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MC10E445, MC100E445  
5VꢀECL 4-Bit Serial/Parallel  
Converter  
Description  
The MC10/100E445 is an integrated 4-bit serial to parallel data  
converter. The device is designed to operate for NRZ data rates of up to  
2.0 Gb/s. The chip generates a divide by 4 and a divide by 8 clock for  
both 4-bit conversion and a two chip 8-bit conversion function. The  
conversion sequence was chosen to convert the first serial bit to Q0, the  
second to Q1 etc.  
Two selectable serial inputs provide a loopback capability for testing  
purposes when the device is used in conjunction with the E446 parallel to  
serial converter.  
http://onsemi.com  
PLCC28  
FN SUFFIX  
CASE 776  
The start bit for conversion can be moved using the SYNC input. A  
single pulse applied asynchronously for at least two input clock cycles  
shifts the start bit for conversion from Qn to Qn1. For each additional  
shift required an additional pulse must be applied to the SYNC input.  
Asserting the SYNC input will force the internal clock dividers to  
“swallow” a clock pulse, effectively shifting a bit from the Qn to the Qn1  
output (see Timing Diagram B).  
The MODE input is used to select the conversion mode of the device.  
With the MODE input LOW, or open, the device will function as a 4-bit  
converter. When the mode input is driven HIGH the data on the output will  
change on every eighth clock cycle thus allowing for an 8-bit conversion  
scheme using two E445’s. When cascaded in an 8-bit conversion scheme  
the devices will not operate at the 2.0 Gb/s data rate of a single device.  
Refer to the applications section of this data sheet for more information on  
cascading the E445.  
MARKING DIAGRAM*  
1 28  
MCxxxE445FNG  
AWLYYWW  
xxx  
A
WL  
YY  
WW  
G
= 10 or 100  
= Assembly Location  
= Wafer Lot  
= Year  
= Work Week  
= PbFree Package  
Upon power-up the internal flip-flops will attain a random state. To  
synchronize multiple E445’s in a system the master reset must be asserted.  
The V pin, an internally generated voltage supply, is available to this  
BB  
*For additional marking information, refer to  
Application Note AND8002/D.  
device only. For single-ended input conditions, the unused differential  
input is connected to V as a switching reference voltage. V may also  
BB  
BB  
rebias AC coupled inputs. When used, decouple V and V via a  
BB  
CC  
ORDERING INFORMATION  
See detailed ordering and shipping information in the package  
dimensions section on page 11 of this data sheet.  
0.01 mF capacitor and limit current sourcing or sinking to 0.5 mA. When  
not used, V should be left open.  
BB  
The 100 Series contains temperature compensation.  
Features  
On-Chip Clock ÷4 and ÷8  
ESD Protection: Human Body Model; > 2 kV,  
Machine Model; > 100 V  
2.0 Gb/s Data Rate Capability  
Differential Clock and Serial Inputs  
Meets or Exceeds JEDEC Spec EIA/JESD78  
IC Latchup Test  
Moisture Sensitivity Level: Pb = 1; PbFree = 3  
For Additional Information, see Application Note  
AND8003/D  
Flammability Rating: UL 94 V0 @ 0.125 in,  
Oxygen Index: 28 to 34  
Transistor Count = 528 devices  
V Output for Single-Ended Input Applications  
BB  
Asynchronous Data Synchronization  
Mode Select to Expand to 8-Bits  
PECL Mode Operating Range: V = 4.2 V to 5.7 V  
CC  
with V = 0 V  
EE  
NECL Mode Operating Range: V = 0 V  
CC  
PECL Mode Operating Range: V = 4.2 V to 5.7 V  
CC  
with V = 4.2 V to 5.7 V  
EE  
with V = 0 V  
EE  
Internal Input 50 kW Pulldown Resistors  
PbFree Packages are Available*  
*For additional information on our PbFree strategy and soldering details, please download the ON Semiconductor Soldering and Mounting  
Techniques Reference Manual, SOLDERRM/D.  
©
Semiconductor Components Industries, LLC, 2006  
1
Publication Order Number:  
November, 2006 Rev. 12  
MC10E445/D  

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