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參數(shù)資料
| 型號(hào)： | SY89850U |
| 廠商： | Micrel Semiconductor,Inc. |
| 元件分類(lèi)： | 外設(shè)及接口 |
| 英文描述： | Single Supply RS232C Line Driver/Receiver(?????μ?o?RS232C ?o?????????¨???2???2??????) |
| 中文描述： | 單電源RS232C接口線路驅(qū)動(dòng)器/接收器（單電源RS232C接口線收發(fā)器（2發(fā)2收）） |
| 文件頁(yè)數(shù)： | 3/10頁(yè) |
| 文件大?。?/td> | 561K |
| 代理商： | SY89850U |
Micrel, Inc.
SY89850U
Absolute Maximum Ratings
(1)
Supply Voltage (V
CC
)..........................–0.5V to +4.0V
Input Voltage (V
IN
)..................................–0.5V to V
CC
LVPECL Output Current (I
OUT
) ...................................
Continuous..................................................50mA
Surge ........................................................100mA
Input Current ..............................................................
Source or sink current on IN, /IN ..............±50mA
Termination Current ...................................................
Source or sink current on VT..................±100mA
Source or sink current on V
REF–AC
.....................±2mA
Lead Temperature (soldering, 20sec.).............260°C
Storage Temperature (T
s
) ...............–65°C to +150°C
DC Electrical Characteristics
(4)
T
A
= –40°C to +85°C, unless noted.
February 2005
3
M9999-020305
hbwhelp@micrel.com
or (408) 955-1690
Operating Ratings
(2)
Supply Voltage (V
CC
).................. +2.375V to +2.625V
......................................................+3.0V to +3.6V
Ambient Temperature (T
A
)................ –40°C to +85°C
Package Thermal Resistance
MLF (
θ
JA
)
Still-Air.....................................................93°C/W
MLF (
ψ
JB
)
Junction-to-Board....................................60°C/W
Symbol
Parameter
Condition
Min
Typ
Max
Units
V
CC
Power Supply
2.375
3.0
2.5
3.3
2.625
3.6
V
V
I
CC
R
DIFF_IN
Power Supply Current
No load, max. V
CC
20
30
mA
Differential Input Resistance
(IN-to-/IN)
90
100
110
R
IN
Input Resistance
(IN-to-V
T
), (/IN-to-V
T
)
Input High Voltage
(IN, /IN)
45
50
55
V
IH
Note 5
V
CC
–1.6
V
CC
V
V
IL
Input Low Voltage
(IN, /IN)
0
V
IH
–0.1
V
V
IN
Input Voltage Swing
(IN, /IN)
See Figure 1a.
0.1
1.7
V
V
DIFF_IN
Differential Input Voltage Swing
|IN–/IN|
See Figure 1b.
0.2
V
V
T_IN
In-to-V
T
(IN, /IN)
1.28
V
V
REF–AC
Output Reference Voltage
V
CC
–1.3
V
CC
–1.2
V
CC
–1.1
V
Notes:
1.
Permanent device damage may occur if Absolute Maximum Ratings are exceeded. This is a stress rating only and functional operation is
not implied at conditions other than those detailed in the operational sections of this data sheet. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
The data sheet limits are not guaranteed if the device is operated beyond the operating ratings.
Package Thermal Resistance assumes exposed pad is soldered (or equivalent) to the devices most negative potential on the PCB.
The circuit is designed to meet the DC specifications shown in the above table after thermal equilibrium has been established.
V
IH
(min) not lower than 1.2V.
2.
3.
4.
5.
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