參數(shù)資料
型號(hào): SP3238EEA-L/TR
廠商: Exar Corporation
文件頁(yè)數(shù): 14/20頁(yè)
文件大?。?/td> 0K
描述: IC TXRX RS232 INTELLIGENT 28SSOP
標(biāo)準(zhǔn)包裝: 1,500
類(lèi)型: 收發(fā)器
驅(qū)動(dòng)器/接收器數(shù): 5/3
規(guī)程: RS232
電源電壓: 3 V ~ 5.5 V
安裝類(lèi)型: 表面貼裝
封裝/外殼: 28-SSOP(0.209",5.30mm 寬)
供應(yīng)商設(shè)備封裝: 28-SSOP
包裝: 帶卷 (TR)
其它名稱(chēng): SP3238EEA-L/TR-ND
Exar Corporation 48720 Kato Road, Fremont CA, 94538 510-668-7017 www.exar.com
SP3238E_100_020111
3
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
RECEIVER INPUTS
Input Voltage Range
-25
25
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
0.5
V
Input Resistance
3
5
7
k
AUTO ON-LINE CIRCUITRY CHARACTERISTICS (ONLINE = GND, SHUTDOWN = VCC)
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)
200
s
Figure 10
Receiver Positive or Negative
Threshold to STATUS HIGH (t
STSH)
0.5
s
Figure 10
Receiver Positive or Negative
Threshold to STATUS LOW (t
STSL)
20
s
Figure 10
TIMING CHARACTERISTICS
Maximum Data Rate
250
kbps
R
L = 3K, CL = 1000pF, one
driver switching
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
100
ns
| t
PHL - tPLH |, TAMB = 25°C
Receiver Skew
50
ns
| t
PHL - tPLH |
Transition-Region Slew Rate
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
V
CC = +3.0V to +5.5V, C1 - C4 = 0.1F (tested at 3.3V +/-5%), C1 - C4 = 0.22F (tested at 3.3V +/-10%),
C1 = 0.047F and C2 - C4 = 0.33F (tested at 5.0V +/-10%), T
AMB = TMIN to TMAX, unless otherwise noted. Typical
values are at T
A = 25
o
C
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