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參數(shù)資料
| 型號(hào)： | SP237A |
| 英文描述： | 5V Multi-Channel RS-232 Drivers/Receivers(5V,多通道RS-232線驅(qū)動(dòng)器/接收器(5發(fā)3收）) |
| 中文描述： | 5V的多通道RS - 232驅(qū)動(dòng)器/接收器（5V的，多通道的RS - 232線驅(qū)動(dòng)器/接收器（5發(fā)3收）） |
| 文件頁(yè)數(shù)： | 9/17頁(yè) |
| 文件大小： | 661K |
| 代理商： | SP237A |
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9
SP30A/234A/235A/236A/237A/238A/239A/
SP241A/235B/236B/240A/240B/241A/241B
+5V Powered Multi-Channel RS-232 Drivers/Receivers
Copyright 2000 Sipex Corporation
Figure 4. Mouse Application Drive Capability
10
9
8
7
6
5
4
3
2
1
0
V
O
V
O
0
2
4
6
8
10
12
18
20
I
OL
/I
OH
(mA)
16
14
22
V
OL
vs I
OL
V
OH
vs I
OH
Figure 5. Parallel Drivers
T IN
T OUT
Wake-Up Feature
The
SP235B
,
SP236B
,
SP240B
and
SP241B
have a wake-up feature that keeps all receivers
in an enabled state when the device is in the
shutdown mode.
Table 2
defines the truth table
for the wake-up function. Timing for the wake-up
function is shown in
Figure 6
.
If the
SP235B
,
SP236B
,
SP240B
and
SP241B
are powered up in the shutdown state (SD driven
high during V
power up), the part must remain
in a powered on state for a minimum of 3ms
before the wake-up function can be used. After
the 3ms wait time, there is a 2ms delay time
before data is valid for both enable and disable
+5V
0V
+5V
0V
R
OUT
SD
POWER-UP WITH SD HIGH (charge pump section in shutdown state)
t
0
(power up)
+5V
0V
+5V
0V
R
OUT
SD
POWER-UP WITH SD LOW (charge pump section in active mode)
t
0
(power up)
t
WAIT
t
ENABLE
+5V
0V
+5V
0V
R
OUT
SD
EXERCISINt
0
(power up)
DATA
VALID
t
WAIT
DATA
VALID
DATA
VALID
DATA
VALID
DATA
VALID
t
ENABLE
t
ENABLE
t
ENABLE
SPECIFICATIONS:
(V
CC
=+5V±10%, T
A
=25°C)
PARAMETER MIN. TYP. MAX.
t
WAIT
2ms 3ms
t
ENABLE
1ms 2ms
Figure 6. Wake–Up and Shutdown Timing
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP237ACS | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:+5V Powered Multi-Channel RS-232 Drivers/Receivers |
| SP237ACT | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:+5V Powered Multi-Channel RS-232 Drivers/Receivers |
| SP237ACT/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:+5V Powered Multi-Channel RS-232 Drivers/Receivers |
| SP237ACT-L | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| SP237ACX | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:+5V Powered Multi-Channel RS-232 Drivers/Receivers |
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