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參數(shù)資料
| 型號(hào)： | SN65EPT21DR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類(lèi)： | 時(shí)鐘及定時(shí) |
| 英文描述： | 65EP SERIES, LOW SKEW CLOCK DRIVER, 1 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO8 |
| 封裝： | PLASTIC, MS-012AA, SOIC-8 |
| 文件頁(yè)數(shù)： | 7/13頁(yè) |
| 文件大?。?/td> | 429K |
| 代理商： | SN65EPT21DR |
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SLLS970 – NOVEMBER 2009
PECL DC CHARACTERISTICS
At VCC = 3.3 V, GND = 0.0 V (unless otherwise noted)
(1) (2)
TA = –40°C
TA = 25°C
TA = 85°C
PARAMETER
TEST CONDITIONS
UNIT
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
VIH
High-level input voltage,
2075
2420
2075
2420
2075
2420
mV
single-ended
VIL
Low-leveI input voltage,
1355
1675
1355
1675
1355
1675
mV
single-ended
VBB
Output reference voltage
1910
2009
2160
1910
2034
2160
1910
2026
2160
mV
VIHCM
High-level input voltage,
See (3)
1.2
3.3
1.2
3.3
1.2
3.3
V
R
common-mode range,
differential
IIH
High-level input current
150
μA
IIL
Low-level input current
-150
μA
(1)
The device will meet the specifications after thermal balance has been established when mounted in a socket or printed circuit board
with maintained transverse airflow greater than 500 lfpm. Electrical parameters are assured only over the declared operating
temperature range. Functional operation of the device exceeding these conditions is not implied. Device specification limit values are
applied individually under normal operating conditions and not valid simultaneously.
(2)
Input parameters vary 1:1 with VCC.
(3)
VIHCMR(min) varies 1:1 with GND, VIHCMR(max) varies 1:1 with VCC. VIHCMR range is referenced to the most positive side of the differential
input signal
TTL DC CHARACTERISTICS
At VCC = 3.3 V, GND = 0.0, TA = –40°C to 85°C (unless otherwise noted)
(1)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ICCH
Power supply current
Output is HIGH
5
9
20
mA
ICCL
Power supply current
Output is LOW
8
7.5
26
mA
VOH
High-level output voltage
IOH = –3.0 mA
2.4
3.05
V
VOL
Low-level output voltage
IOL = 24 mA
0.32
0.5
V
IOS
Output short circuit current
–180
–100
–80
mA
(1)
The device will meet the specifications after thermal balance has been established when mounted in a socket or printed circuit board
with maintained transverse airflow greater than 500 lfpm. Electrical parameters are assured only over the declared operating
temperature range. Functional operation of the device exceeding these conditions is not implied. Device specification limit values are
applied individually under normal operating conditions and not valid simultaneously.
AC CHARACTERISTICS
At VCC = 3.0 V to 3.6 V, GND = 0.0 V (unless otherwise noted)
(1) (2)
TA = –40°C
TA = 25°C
TA = 85°C
PARAMETER
TEST CONDITIONS
UNIT
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
fMAX
Maximum switching
300
MHz
frequency
tPLH
Propagation delay
At 1.5 V
1000
1394
1800
1000
1444
1800
1000
1481
1800
ps
tPHL
Propagation delay
At 1.5 V
1000
1140
1900
1000
1280
1900
1000
1421
1900
ps
tJITTER
Random clock jitter (RMS)
2.25
5
3.2
5
3.4
5
ps
tSKEW
Duty Cycle Skew(3)
94
250
78
250
62
250
ps
tSKPP
Part-to-Part Skew(3)
500
ps
VPP
Input swing
See (4)
150
1200
150
1200
150
1200
mV
tr/tf
Output rise/fall times
Q, Q (0.8V - 2.0V))
250
500
900
250
500
900
250
500
900
ps
(1)
The device will meet the specifications after thermal equilibrium has been established when mounted in a test socket or printed circuit
board with maintained transverse airflow greater than 500 lfpm. Electrical parameters are assured only over the declared operating
temperature range. Functional operation of the device exceeding these conditions is not implied. Device specification limit values are
applied individually under normal operating conditions and not valid simultaneously.
(2)
RL = 500 to GND and CL = 20 pF to GND. See Figure 4. Measured with 750mV, 50% duty cycle clock source
(3)
Skews are measured between outputs under identical transitions
(4)
VPP(min) is minimum input swing for which ac parameters are assured.
Copyright 2009, Texas Instruments Incorporated
3
Product Folder Link(s): SN65EPT21
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| SN65EPT22DGK | 功能描述:轉(zhuǎn)換 - 電壓電平 3.3V LVTTL/LVCMOS to Diff LVPECL Bfr RoHS:否 制造商:Micrel 類(lèi)型:CML/LVDS/LVPECL to LVCMOS/LVTTL 傳播延遲時(shí)間:1.9 ns 電源電流:14 mA 電源電壓-最大:3.6 V 電源電壓-最小:3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MLF-8 |
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