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參數(shù)資料
| 型號(hào)： | SY55851UKITR |
| 廠商： | MICREL INC |
| 元件分類： | 標(biāo)準(zhǔn)邏輯 |
| 英文描述： | 2.5V/3V, 3.0GHz CML AnyGate ANY LOGIC WITH 50ohm or 100ohm OUTPUTS |
| 中文描述： | SPECIALTY LOGIC CIRCUIT, PDSO10 |
| 封裝： | 3 X 3 MM, MSOP-10 |
| 文件頁數(shù)： | 3/8頁 |
| 文件大?。?/td> | 72K |
| 代理商： | SY55851UKITR |
3
SuperLite
SY55851
SY55851A
Micrel, Inc.
M9999-110705
hbwhelp@micrel.com or (408) 955-1690
FUNCTIONAL DESCRIPTION
V
CC
NC
Input
/Input
Figure 1. Hard Wiring A Logic “1”
(1)
NC
For V
CC
3.0V Applications
NC
Input
/Input
NC
For V
CC
< 3.0V Applications
VCC
Input
/Input
Figure 2. Hard Wiring A Logic “0”
(1)
Establishing Static Logic Inputs
The true pin of an input pair is internally biased to ground
through a 75k
resistor. The complement pin of an input
pair is internally biased to V
CC
/2 through an internal voltage
divider consisting of two 75k
resistors. Since some logic
functions necessitate an output to be connected to two
inputs, SY55851/A inputs have no internal terminations.
Typically, one resistor between the true and complement
input is all that is required, as per
Figure 3
. To keep an
Note 1.
Input is either A, B, S input, and /Input is either /A, /B, /S input.
input at static logic zero at V
CC
≥
3.0V, leave both inputs
unconnected or tie the complement input to V
CC
. For V
CC
<
3.0V applications, connect the complement input to V
CC
and leave the true input unconnected. To make an input
static logic one, connect the true input to V
CC
, and leave
the complement input unconnected. These are the only safe
ways to cause inputs to be at a static value. In particular,
no input pin should be directly connected to ground. All NC
(no connect) pins should be unconnected.
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