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參數(shù)資料
| 型號(hào)： | UPD7281 |
| 廠商： | NEC Corp. |
| 英文描述： | IEEE1394 OHCI 1.1 COMPLIANT 3PORT PHY-LINK 1-CHIP HOST CONTROLLER |
| 中文描述： | IEEE1394連接的OHCI 1.1標(biāo)準(zhǔn)3PORT物理層鏈路1 -芯片的主機(jī)控制器 |
| 文件頁數(shù)： | 32/40頁 |
| 文件大?。?/td> | 297K |
| 代理商： | UPD7281 |
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Preliminary Data Sheet S15306EJ2V0DS
32
μ
PD72874
DC Characteristics (V
DD
= 3.3 V
±
10 %, V
SS
= 0 V, T
A
= 0 to +70
°
C)
Parameter
Symbol
Condition
MIN.
TYP.
MAX.
Unit
High-level input voltage
V
IH
2.0
V
DD
+0.5
V
Low-level input voltage
V
IL
–0.5
+0.8
V
High-level output current
I
OH
V
OH
= 2.4 V,
GROM_SDA, GROM_SCL
–6
mA
Low-level output current
I
OL
V
OL
= 0.4 V,
GROM_SDA, GROM_SCL
6
mA
Input leakage current
I
L
V
IN
= V
DD
or GND
±
10.0
μ
A
PCI interface
High-level input voltage
V
IH
2.0
5.5
V
Low-level input voltage
V
IL
–0.5
+0.8
V
High-level output current
I
OH
V
OH
= 2.4 V
–2
mA
Low-level output current
I
OL
V
OL
= 0.4 V
9
mA
Input leakage current
I
L
V
IN
= V
DD
or GND
±
10.0
μ
A
Cable interface
Cable input, 100 Mbps operation
142
260
mV
Cable input, 200 Mbps operation
132
260
mV
Differential input voltage
V
ID
Cable input, 400 Mbps operation
118
260
mV
100 Mbps speed signaling off
1.165
2.515
V
200 Mbps speed signaling
0.935
2.515
V
TpB common mode input voltage
V
ICM
400 Mbps speed signaling
0.523
2.515
V
Differential output voltage
V
OD
Cable output (Test load 55
)
172.0
265.0
mV
100 Mbps speed signaling off
1.665
2.015
V
200 Mbps speed signaling
1.438
2.015
V
TpA common mode output voltage
V
OCM
400 Mbps speed signaling
1.030
2.015
V
100 Mbps speed signaling off
–0.81
+0.44
mA
200 Mbps speed signaling
–4.84
–2.53
mA
TpA common mode output current
I
CM
400 Mbps speed signaling
–12.40
–8.10
mA
Power status threshold voltage
V
TH
CPS
7.5
V
TpBias output voltage
V
TPBIAS
1.665
2.015
V
Remarks 1.
Digital core runs at 3.3 V.
2.
PCI Interface can run at 5 or 3.3 V, depending on the choice of 5 V-PCI or 3.3 V-PCI.
3.
All other I/Os are 3.3 V driving, and 5 V tolerant.
4.
5 V are used only for 5 V-PCI clamping diode.
3.3 V
Protection Circuit
5.0 V
I/O Buffer
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