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參數(shù)資料
| 型號： | SY89221UMG |
| 廠商： | MICREL INC |
| 元件分類： | 時鐘及定時 |
| 英文描述： | 89221 SERIES, LOW SKEW CLOCK DRIVER, 15 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP64 |
| 封裝： | LEAD FREE, TQFP-64 |
| 文件頁數(shù)： | 14/17頁 |
| 文件大小： | 828K |
| 代理商： | SY89221UMG |
Micrel, Inc.
SY89221U
September 2006
6
M9999-092906-A
hbwhelp@micrel.com or (408) 955-1690
Absolute Maximum Ratings
(1)
Supply Voltage (VCC)............................... –0.5V to +4.0V
Input Voltage (VIN) .......................................–0.5V to VCC
Termination Current
Source or sink current on VT........................±100mA
LVPECL Output Current (IOUT)
Continuous.......................................................50mA
Surge .............................................................100mA
Input Current
Source or sink current on IN, /IN ...................±50mA
Operating Ratings
(2)
Supply Voltage (VIN).................+2.375V to +2.625V or
............................................... +3.0V to 3.6V
Ambient Temperature (TA)..................–40°C to +85°C
Package Thermal Resistance
(4)
TQFP
Still-air (
θJA) ............................................35°C/W
Junction-to-board (
ψJB) ..........................20°C/W
VREF-AC Current
(3)
Source or sink current on VREF-AC ....................±2mA
Lead Temperature (soldering, 20sec.) .................. 260°C
Storage Temperature (Ts)……...………–65°C to +150°C
DC Electrical Characteristics
(5)
VCC = +2.5V ±5% or 3.3V ±10%, TA = –40°C to +85°C unless otherwise stated.
Symbol
Parameter
Condition
Min
Typ
Max
Units
VCC
Positive Supply Voltage Range
2.375
3.0
2.625
3.6
V
ICC
Power Supply Current
140
190
mA
RDIFF_IN
Differential Input Resistance
(IN-to-/IN)
90
100
110
RIN
Input Resistance
(IN-to-VT, /IN-to-VT)
45
50
55
VIH
Input HIGH Voltage (IN, /IN)
1.2
VCC
V
VIL
Input LOW Voltage (IN, /IN)
0
VIH–0.1
V
VIN
Input Voltage Swing (IN, /IN)
See Figure 1a; Note 6
0.1
2.5
V
VDIFF_IN
Differential Input Voltage Swing
|IN – /IN|
See Figure 1b
200
mV
VIN_FSI
Input Voltage Threshold that
Triggers FSI
30
100
mV
VREF-AC
Reference Voltage
VCC–1.3
VCC–1.2
VCC–1.1
V
VT_IN
Voltage from Input to VT
1.28
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 ratings conditions
for extended periods may affect device reliability.
2. The data sheet limits are not guaranteed if the device is operated beyond the operating ratings.
3. Due to the limited drive capability use for input of the same package only.
4.
ψJB and θJA values are determined for a 4-layer board in still-air number, unless otherwise stated.
5. The circuit is designed to meet the DC specifications shown in the above table after thermal equilibrium has been established.
6. VIN(max) is specified when VT is floating.
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