參數(shù)資料
型號(hào)： SP3243EBER-L/TR
廠商： Exar Corporation
文件頁(yè)數(shù)： 18/24頁(yè)
文件大?。?/td> 0K
描述： IC TXRX RS232 INTELLIGENT 32QFN
產(chǎn)品變化通告： Interface Product Discontinuation 10/May/2011
標(biāo)準(zhǔn)包裝： 3,000
類型： 收發(fā)器
驅(qū)動(dòng)器/接收器數(shù)： 3/5
規(guī)程： RS232
電源電壓： 3 V ~ 5.5 V
安裝類型： 表面貼裝
封裝/外殼： 32-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 32-QFN 裸露焊盤（5x5）
包裝： 帶卷 (TR)
Exar Corporation 48720 Kato Road, Fremont CA, 94538 510-668-7017 www.exar.com
SP3243E_102_060611
3
Unless otherwise noted, the following specifications apply for V
CC = +3.0V to +5.5V with TAMB = TMIN to TMAX,
C1 - C4 = 0.1F. Typical values apply at V
CC = +3.3V or +5.0V and TAMB = 25°C.
ELECTRICAL CHARACTERISTICS
PARAMETER
MIN.
TYP. MAX. UNITS CONDITIONS
DRIVER OUTPUTS (continued)
Output Resistance
300
V
CC = V+ = V- = 0V, VOUT=+2V
Output Short-Circuit Current
+35
+60
mA
V
OUT = 0V
Output Leakage Current
+25
A
V
CC = 0V or 3.0V to 5.5V, VOUT =
+12V, Drivers disabled
RECEIVER INPUTS
Input Voltage Range
-15
15
V
Input Threshold LOW
0.6
1.2
V
Vcc = 3.3V
Input Threshold LOW
0.8
1.5
V
Vcc = 5.0V
Input Threshold HIGH
1.5
2.4
V
Vcc = 3.3V
Input Threshold HIGH
1.8
2.4
V
Vcc = 5.0V
Input Hysteresis
0.3
V
Input Resistance
3
5
7
k
AUTO ON-LINE CIRCUITRY CHARACTERISTICS (ONLINE = GND, SHUTDOWN = VCC) 25°C
STATUS Output Voltage LOW
0.4
V
I
OUT = 1.6mA
STATUS Output Voltage HIGH
V
CC -0.6
V
I
OUT = -1.0mA
Receiver Threshold to Drivers
Enabled (t
ONLINE)
350
s
Figure 14
Receiver Positive or Negative
Threshold to STATUS HIGH (t
STSH)
0.2
s
Figure 14
Receiver Positive or Negative
Threshold to STATUS LOW (t
STSL)
30
s
Figure 14
TIMING CHARACTERISTICS
Maximum Data Rate (U)
(H)
(B)
( - )
1000
460
250
120
Kbps
R
L = 3K, CL = 250pF, one driver
active
R
L = 3K, CL = 1000pF, one
driver active
R
L = 3K, CL = 1000pF, one
driver active
R
L = 3K, CL = 1000pF, one
driver active
Receiver Propagation Delay
t
PHL
t
PLH
0.15
s
Receiver input to Receiver out-
put, C
L = 150pF
Receiver Output Enable Time
200
ns
Normal operation
Receiver Output Disable Time
200
ns
Normal operation
Driver Skew (E, EB)
(EH, EU)
100
50
500
100
ns
| t
PHL - tPLH |
Receiver Skew
50
ns
| t
PHL - tPLH |
Transition-Region Slew Rate
(EH, EU)
(E, EB)
6
90
30
V/s
Vcc = 3.3V, R
L = 3k, TAMB =
25°C, measurements taken from
-3.0V to +3.0V or +3.0V to -3.0V
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