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參數(shù)資料
| 型號： | ASM2I9940LG-32LT |
| 廠商： | ON Semiconductor |
| 文件頁數(shù)： | 4/10頁 |
| 文件大小： | 0K |
| 描述： | IC CLK BUFFER 2:18 250MHZ 32LQFP |
| 標(biāo)準(zhǔn)包裝： | 250 |
| 類型： | 扇出緩沖器（分配） |
| 電路數(shù)： | 1 |
| 比率 - 輸入:輸出： | 2:18 |
| 差分 - 輸入:輸出： | 是/無 |
| 輸入： | LVCMOS，LVPECL |
| 輸出： | LVCMOS |
| 頻率 - 最大： | 250MHz |
| 電源電壓： | 2.375 V ~ 3.465 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 32-LQFP |
| 供應(yīng)商設(shè)備封裝： | 32-LQFP（7x7） |
| 包裝： | 托盤 |
ASM2I9940L
http://onsemi.com
3
Table 3. PIN CONFIGURATIONS
Pin #
Pin Name
I/O
Type
Function
5
6
PECL_CLK
Input
LVPECL
LVPECL Clock Inputs
3
LVCMOS_CLK
Input
LVCMOS
LVCMOS Clock Input
4
LVCMOS_CLK_Sel
Input
LVCMOS
Selects either LVPECL or LVCMOS input as Clock
Source
32, 31, 30, 28, 27, 26,
24, 23, 22, 20, 19, 18,
15, 14, 13, 11, 10, 9
Q0 – Q17
Output
LVCMOS
Clock Outputs
2
GNDI
Supply
Core Negative Power Supply
1, 12, 17, 25
GNDO
Supply
Output Negative Power Supply
7, 21
VCCI
Supply
Core Positive Power Supply
8, 16, 29
VCCO
Supply
Output Positive Power Supply
Table 4. ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Min
Max
Unit
VCC
Supply Voltage
–0.3
3.6
V
VI
Input Voltage
–0.3
VCC + 0.3
V
IIN
Input Current
$20
mA
TStor
Storage Temperature Range
–40
125
°C
Ts
Max. Soldering Temperature (10 sec)
260
°C
TDV
Static Discharge Voltage (As per JEDEC STD22A114B)
2
kV
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
Table 5. DC CHARACTERISTICS (TA = 0°C to 70°C, VCCI = 3.3 V $ 5%, VCCO = 3.3 V $ 5%)
Symbol
Characteristic
Condition
Min
Typ
Max
Unit
VIH
Input HIGH Voltage
CMOS_CLK
2.4
VCCI
V
VIL
Input LOW Voltage
CMOS_CLK
0.8
V
VPP
Peak–to–Peak Input Voltage
PECL_CLK
500
1000
mV
VCMR
Common Mode Range
PECL_CLK
VCCI – 1.4
VCCI – 0.6
V
VOH
Output HIGH Voltage
IOH = –20 mA
2.4
V
VOL
Output LOW Voltage
IOL = 20 mA
0.5
V
IIN
Input Current
$200
mA
CIN
Input Capacitance
4.0
pF
Cpd
Power Dissipation Capacitance
per output
10
pF
ZOUT
Output Impedance
18
23
28
W
ICC
Maximum Quiescent Supply Current
0.5
1.0
mA
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