參數資料
| 型號： | SP331ET-L/TR |
| 廠商： | Exar Corporation |
| 文件頁數： | 6/13頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX RS232/485 PROG 28WSOIC |
| 標準包裝： | 1,500 |
| 類型： | 收發(fā)器 |
| 驅動器/接收器數： | 4/4 |
| 規(guī)程： | RS232，RS485 |
| 電源電壓： | 5V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-SOIC（0.295"，7.50mm 寬） |
| 供應商設備封裝： | 28-SOIC W |
| 包裝： | 帶卷 (TR) |
2
Exar Corporation 48720 Kato Road, Fremont CA, 94538 50-668-707 www.exar.com
SP33_00_0260
SPECIFICATIONS
PARAMETER
MIN.
TYP.
MAX.
UNITS CONDITIONS
LOgIC INPUTS
V
IL
0.8
Volts
V
IH
2.0
Volts
LOgIC OUTPUTS
V
OL
0.4
Volts
I
OUT = -3.2mA
V
OH
2.4
Volts
I
OUT = .0mA
RS-232 DRIVER
DC Characteristics
HIGH Level Output
+5.0
Volts
R
L = 3k, VIN = 0.8V
LOW Level Output
-5.0
Volts
R
L = 3k, VIN = 2.0V
Open Circuit Voltage
-5
+5
Volts
Short Circuit Current
+/-00
mA
V
OUT = 0V
Power Off Impedance
300
V
CC = 0V, VOUT = +/-2.0V
AC Characteristics
Slew Rate
30
V/s
R
L = 3k, CL = 50pF; VCC = +5.0V,
T
A @ 25°C
Transistion Time
.5
s
R
L = 3k, CL = 2500pF; between
+/-3V, T
A @ +25°C
Maximum Data Rate
20
235
kbps
R
L = 3k, CL = 2500pF
Propagation Delay t
PHL
2
8
s
Measured from 1.5V of V
IN to 50%
of V
OUT; RL = 3k
Propagation Delay t
PLH
2
8
s
RS-232 RECEIVER
DC Characteristics
HIGH Threshold
.7
3.0
Volts
LOW Threshold
0.8
.2
Volts
Receiver Open Circuit Bias
+2.0
Volts
Input Impedance
3
5
7
k
V
IN = +5V to -5V
ABSOLUTE MAXIMUM RATINgS
These are stress ratings only and functional operation
of the device at these ratings or any other above those
indicated in the operation sections of the specifications
below is not implied. Exposure to absolute maximum
rating conditions for extended periods of time may
affect reliability.
V
CC.......................................................................+7V
Input Voltages
Logic............................-0.5V to (Vcc+0.5V)
Drivers.........................-0.5V to (Vcc+0.5V)
Receivers......................+/-30V @ ≤100mA
Driver Outputs..................................................+/-5V
Maximum Data Rate..........................8Mbps (Note 1)
Storage Temperature.......................-65C to +150C
Power Dissipation
28-pin WSOIC...................................000mW
Package Derating:
28-pin WSOIC
JA................................................40 °C/W
Limits are specified at T
A = 25°C and VCC = +5.0V unless otherwise noted.
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