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参数资料
| 型号： | SC3308Q/TD |
| 厂商： | APPLIEDMICRO INC |
| 元件分类： | 时钟及定时 |
| 英文描述： | LVTTL SERIES, LOW SKEW CLOCK DRIVER, 20 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP52 |
| 封装： | 0.039 INCH PITCH, PLASTIC, QFP-52 |
| 文件页数： | 3/9页 |
| 文件大小： | 115K |
| 代理商： | SC3308Q/TD |
Applied Micro Circuits Corporation
6290 Sequence Dr., San Diego, CA 92121-4358
3
20-OUTPUT LVTTL CLOCK DRIVERS
SC3306/08
Absolute Maximum Ratings
Storage Temperature ......................... -55
° to +150°C
VCC Potential to Ground ..................... -0.5V to +7.0V
Input Voltage ........................................ -0.5V to +VCC
Static Discharge Voltage ............................... >1750V
Maximum Junction Temperature ................... +140
°C
Latch-up Current .......................................... >200 mA
Operating Ambient Temperature ............ 0
° to +70°C
Capacitance (package and die total)
Input Pins ......................................................... 5.0 pF
TTL Output Pins ............................................... 5.0 pF
Symbol
Parameter
Conditions
Min
Max
Unit
VIH
Input HIGH Voltage (PECL)
Differential Source–PECL
VIL +0.4
VCC
V
Input HIGH Voltage (TTL)
All TTL Inputs
2.0
VCC
V
VIL
Input LOW Voltage (PECL)
Differential Source–PECL
VCC -2.0
VIH -0.4
V
Input LOW Voltage (TTL)
All TTL Inputs
-0.5
0.8
V
IIH
Input HIGH Current (PECL)
VIN = VCC (max)
200
uA
CLKSEL
VIN = VCC (max)
350
uA
RESET
VIN = 2.4V
-200
uA
TTL
VIN = 2.4V
15
uA
IIL
Input LOW Current (PECL)
VIN = VCC -2.0V
15
uA
CLKSEL
VIN = 0.4V
25
uA
RESET
VIN = 0.5V
-325
uA
TTL
VIN = 0.4V
15
uA
VOH
Output HIGH Voltage
FOUT = 80MHz, CL = 10pF
2.3
3.65
V
VOL
Output LOW Voltage
FOUT = 80MHz, CL = 10pF
0.4V
V
IOHS1
Output HIGH Short Ckt Current
Output High, VOUT = 0V Typ
-45
mA
IOLS1
Output LOW Short Ckt Current
Output Low, VOUT = VCC Typ
55
mA
PWR
Static Core Power Dissipation
SC3306, 70
°C, Typ Pwr=370mW
600
mW
SC3308, 70C, Typ Pwr=370mW
600
mW
Electrical Characteristics
VCC = +5.0V ± 5%, Ta = 0°C to + 70°C (reference “AC Test/Evaluation Circuit”)
1.
Maximum test duration, one second.
2.
The driver feature source series termination of approximately 40 Ohms to assist in matching 65–75 Ohm P.C. board environments.
DC Characteristics
The outputs have been designed specifically for
clock distribution. In the development of this product,
AMCC has made several trade-offs between the
historic “high-drive, totem-pole outputs” and AMCC’s
dynamically adjusting source series terminated outputs.
As a result of this, the outputs will dynamically
source and sink a symmetrical 24 mA of current. In
a DC state, it exhibits the following specifications:
Conditions
Min
Max
VOH
IOH = -2mA
2.1V
VOL
IOL = 2mA
0.6V
VCC -2.0V
INPUT DIFFERENTIAL
+VCC
VIH
VIL
VID ≥ 400mV
VIH
VIL
PECL Differential Input Voltage Range
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