參數(shù)資料
型號： XRT4500
廠商： Exar Corporation
英文描述： MULTIPROTOCOL SERIAL NETWORK INTERFACE IC
中文描述： 多協(xié)議串行網(wǎng)絡接口芯片
文件頁數(shù)： 30/99頁
文件大小： 1384K
代理商： XRT4500
á
XRT4500
MULTIPROTOCOL SERIAL NETWORK INTERFACE IC
REV. 1.0.7
27
7. Input termination is enabled on High Speed V11
Receivers.
N
OTES
:
1. Absolute Maximum Ratings are those beyond
which the safety of a device may be impaired.
2. All currents into device pins are positive; all cur-
rents out of device are negative. All voltages are
referenced to device ground unless otherwise
specified.
3. The efficiency of the switching regulator and the
charge pump is approximately 70%. The actual
power dissipation of the XRT4500 at 5V with maxi-
mum loading, is 660mW in V10, 700mW in V11,
950mW in V35 and 800mW in the V28 mode. In
the “Reduced Power Mode” the XRT4500 chip dis-
sipation is 310mW.
4. "Typical Load" is the corresponding receiver in
another XRT4500 operating in the DCE mode.
5. A 50% duty cycle square wave, at the specified fre-
quency in the table, is applied to all Clock and Data
lines of the High Speed Transmitters).
6. A 10 KHz 50% duty cycle square wave is applied to
all Handshake Lines (Low Speed Transmitters).
7. Input termination is enabled on High Speed V11
Receivers.
IDD in DTE Mode - Ta=25°C, VDD=5V, Data and Clock at maximum operating frequencies unless other-
wise specified
P
ARAMETER
M
IN
T
YP
M
AX
UNITS
T
EST
C
ONDITIONS
V.10
M0=0, M1=0, M2=0
145
160
170
160
180
190
190
215
230
mA
No Load or Signal, Tx Digital Inputs tied High
Typical Load at 10 kHz
Typical Load at 50 kHz
EIA-530-A (V.11)
M0=1, M1=0, M2=0
130
190
210
250
145
210
235
280
175
250
280
335
mA
No Load or Signal, Tx Digital Inputs tied High
Typical Load at 1 MHz
Typical Load at 4 MHz
Typical Load at 10 MHz
EIA-530, RS449, V.36
M0=0, M1=1, M2=0
125
180
205
245
140
200
230
275
170
240
275
330
mA
No Load or Signal, Tx Digital Inputs tied High
Typical Load at 1 MHz
Typical Load at 4 MHz
Typical Load at 10 MHz
X.21
M0=1, M1=1, M2=0
120
170
190
230
130
190
210
255
155
230
250
305
mA
No Load or Signal, Tx Digital Inputs tied High
Typical Load at 1 MHz
Typical Load at 4 MHz
Typical Load at 10 MHz
V.35
M0=0, M1=0, M2=1
180
220
235
255
200
245
260
285
240
295
310
340
mA
No Load or Signal, Tx Digital Inputs tied High
Typical Load at 1 MHz
Typical Load at 4 MHz
Typical Load at 10 MHz
RESERVED
M0=1, M1=0, M2=1
125
185
205
245
140
205
230
275
170
245
275
330
mA
No Load or Signal, Tx Digital Inputs tied High
Typical Load at 1 MHz
Typical Load at 4 MHz
Typical Load at 10 MHz
RS-232 (V.28)
M0=0, M1=1, M2=1
115
200
205
130
220
230
155
265
275
mA
No Load or Signal, Tx Digital Inputs tied High
Typical Load at 10 kHz
Typical Load at 100 kHz
POWER DOWN
M0=1, M1=1, M2=1
80
90
110
mA
Reduced Power Mode
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