Electrical Characteristics(4) V DD
參數(shù)資料
型號(hào)： KSZ8721CL TR
廠商： Micrel Inc
文件頁(yè)數(shù)： 16/32頁(yè)
文件大小： 0K
描述： TXRX 10/100 3.3V 48-LQFP
標(biāo)準(zhǔn)包裝： 1,000
類型： 收發(fā)器
驅(qū)動(dòng)器/接收器數(shù)： 1/1
規(guī)程： MII
電源電壓： 3 V ~ 3.6 V
安裝類型： 表面貼裝
封裝/外殼： 48-LQFP
供應(yīng)商設(shè)備封裝： 48-LQFP（7x7）
包裝： 帶卷 (TR)
其它名稱： KSZ8721CLTR
KSZ8721CLTR-ND
October 2004
23
M9999-100804
KS8721CL
Micrel
Electrical Characteristics(4)
V
DD = 3.3V ±10%
Symbol
Parameter
Test Condition
Min
Typ
Max
Units
Total Supply Current (including TX output driver current)(5)
I
DD1
Normal 100BASE-TX
Including 40mA output current
103
mA
I
DD2
Normal 10BASE-T (independent of
Including 90mA output current
146
mA
utilization)
I
DD3
Power-Saving Mode 1
Auto-Negotiation is Enable
43
mA
I
DD5
Power-Down Mode
4mA
TTL Inputs
V
IH
Input High Voltage
1/2V
DD(I/O)
V
+0.2
V
IL
Input Low Voltage
0.8
V
I
IN
Input Current
V
IN = GND ~ VDD
–10
10
A
TTL Outputs
V
OH
Output High Voltage
I
OH = –4mA
1/2V
DD(I/O)
V
+0.6
V
OL
Output Low Voltage
I
OL = 4mA
0.4
V
|I
OZ|
Output Tri-State Leakage
10
A
100BASE-TX Receive
R
IN
RX+/RX– Differential Input
8
k
Resistance
Propagation Delay
From magnetics to RDTX
50
110
ns
100BASE-TX Transmit (measured differentially after 1:1 transformer)
V
O
Peak Differential Output Voltage
50
from each output to V
DD
0.95
1.05
V
IMB
Output Voltage Imbalance
50
from each output to V
DD
2%
t
r, tt
Rise/Fall Time
35
ns
Rise/Fall Time Imbalance
0
0.5
ns
Notes:
1. Exceeding the absolute maximum rating(s) may cause permanent damage to the device. Operating at maximum conditions for extended periods may
affect device reliability.
2. The device is not guaranteed to function outside its operating rating. Unused inputs must always be tied to an appropriate logic voltage level (Ground
to V
DD).
3. No HS (heat spreader) in package.
4. Specification for packaged product only.
5. There is 100% data transmission in full-duplex mode and a minimum IPG with a 130-meter cable.
Absolute Maximum Ratings(1)
Storage Temperature (T
S) ....................... –55°C to +150°C
Supply Referenced to GND ........................ –0.5V to +4.0V
All Pins ....................................................... –0.5V to +4.0V
Important: Please read the Notes at the bottom of the
page.
Operating Ratings(2)
Supply Voltage
(V
DD_PLL, VDD_TX, VDD_RXC, VDD_RCV, VDDC) ....... +2.5V
(V
DDIO) .................................................................. +3.3V
Ambient Temperature (T
A)
Commercial ............................................... 0°C to +70°C
Industrial ................................................ –40°C to +85°C
Package Thermal Resistance(3)
LQFP
(θ
JA)
No Airflow .................................................. 83.56°C/W
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