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参数资料
| 型号： | SP332ET-L/TR |
| 厂商： | Exar Corporation |
| 文件页数： | 6/11页 |
| 文件大小： | 0K |
| 描述： | IC TXRX RS232/485 SRL 28WSOIC |
| 标准包装： | 1,500 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 4/4 |
| 规程： | RS232，RS485 |
| 电源电压： | 5V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 28-SOIC W |
| 包装： | 带卷 (TR) |
4
Exar Corporation 48720 Kato Road, Fremont CA, 94538 50-668-707 www.exar.com
SP332_00_0260
SPECIFICATIONS (continued)
PARAMETER
MIN.
TYP.
MAX.
UNITS CONDITIONS
RS-232 DRIVER (continued)
AC Characteristics
Propagation Delay; t
PHL
2
4
s
R
L = 3k, CL = 2500pF, From .5V
of T
IN to 50% of VOUT
Propagation Delay; t
PLH
2
4
s
R
L = 3k, CL = 2500pF, From .5V
of T
IN to 50% of VOUT
Slew Rate
0
30
V/s
R
L = 3k, CL = 50pF; From +3V to
-3V or -3V to +3V
RS-232 RECEIVER
DC Characteristics
TTL Output Level; V
OL
0.4
Volts
I
SINK = 4mA
TTL Output Level; V
OH
3.5
Volts
I
SOURCE = -4mA
Input High Threshold
2.
3.0
Volts
Input Low Threshold
0.8
.6
Volts
Input Voltage Range
-5
+5
Volts
Input Impedance
3
5
7
k
V
IN = +/-5V
Hysteresis
0.2
0.5
.0
Volts
V
CC = +5V
AC Characteristics
Transmission Rate
20
kbps
Transition Time
50
ns
Rise/Fall time, 0%-90%
Propagation Delay t
PHL
00
300
ns
From 50% of V
IN to 1.5V of ROUT
Propagation Delay t
PLH
00
200
ns
POWER REQUIREMENTS
No Load Supply Current
9
25
mA
No Load; V
CC = 5.0V; TA = 25°C
Full Load Supply Current
90
20
mA
RS-232 drivers R
L = 3k to GND,
DC input
RS-485 drivers R
L = 54 from A to
B; DC input
Shutdown Supply Current
5
50
A
T
A = 25°C, VCC = 5.0V
Limits are specified at T
A = 25°C and VCC = +5.0V unless otherwise noted.
Note 1: Exceeding the maximum data rate may damage the device
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