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MC100E137FNG

更新时间: 2024-02-01 09:36:40
品牌 Logo 应用领域
安森美 - ONSEMI 计数器
页数 文件大小 规格书
9页 139K
描述
5 V ECL 8-Bit Ripple Counter

MC100E137FNG 数据手册

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MC10E137, MC100E137  
5 VꢀECL 8-Bit Ripple Counter  
Description  
The MC10E/100E137 is a very high speed binary ripple counter. The  
two least significant bits were designed with very fast edge rates while  
the more significant bits maintain standard ECLinPSoutput edge  
rates. This allows the counter to operate at very high frequencies while  
maintaining a moderate power dissipation level.  
http://onsemi.com  
The device is ideally suited for multiple frequency clock generation  
as well as a counter in a high performance ATE time measurement  
board.  
Both asynchronous and synchronous enables are available to  
maximize the device’s flexibility for various applications. The  
asynchronous enable input, A_Start, when asserted enables the counter  
while overriding any synchronous enable signals. The E137 features  
XORed enable inputs, EN1 and EN2, which are synchronous to the  
CLK input. When only one synchronous enable is asserted the counter  
becomes disabled on the next CLK transition; all outputs remain in the  
previous state poised for the other synchronous enable or A_Start to be  
asserted to re-enable the counter. Asserting both synchronous enables  
causes the counter to become enabled on the next transition of the CLK.  
If EN1 (or EN2) and CLK edges are coincident, sufficient delay has  
been inserted in the CLK path (to compensate for the XOR gate delay  
and the internal D-flip flop setup time) to insure that the synchronous  
enable signal is clocked correctly, hence, the counter is disabled.  
All input pins left open will be pulled LOW via an input pulldown  
resistor. Therefore, do not leave the differential CLK inputs open.  
Doing so causes the current source transistor of the input clock gate to  
become saturated, thus upsetting the internal bias regulators and  
jeopardizing the stability of the device.  
PLCC28  
FN SUFFIX  
CASE 776  
MARKING DIAGRAM*  
1
MCxxxE137FNG  
AWLYYWW  
xxx  
A
WL  
YY  
WW  
G
= 10 or 100  
= Assembly Location  
= Wafer Lot  
= Year  
= Work Week  
= PbFree Package  
The asynchronous Master Reset resets the counter to an all zero state  
upon assertion.  
The V pin, an internally generated voltage supply, is available to  
BB  
*For additional marking information, refer to  
Application Note AND8002/D.  
this device only. For single-ended input conditions, the unused  
differential input is connected to V as a switching reference voltage.  
BB  
V
V
may also rebias AC coupled inputs. When used, decouple V and  
via a 0.01 mF capacitor and limit current sourcing or sinking to  
BB  
BB  
ORDERING INFORMATION  
See detailed ordering and shipping information in the package  
dimensions section on page 7 of this data sheet.  
CC  
0.5 mA. When not used, V should be left open.  
BB  
The 100 Series contains temperature compensation.  
Features  
Differential Clock Input and Data Output Pins  
ESD Protection: Human Body Model: > 2 kV,  
Machine Model: > 200 V  
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  
V Output for Single-Ended Use  
BB  
Synchronous and Asynchronous Enable Pins  
Asynchronous Master Reset  
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  
with V = 4.2 V to 5.7 V  
EE  
Internal Input 50 kW Pulldown Resistors  
Transistor Count = 330 devices  
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. 8  
MC10E137/D  

MC100E137FNG 替代型号

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