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參數(shù)資料
| 型號： | LT1342 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | OCTAL BUFFER/BUS DRIVERS 20-SOIC 0 to 70 |
| 中文描述： | 5V的RS232收發(fā)器3V邏輯接口 |
| 文件頁數(shù)： | 5/8頁 |
| 文件大?。?/td> | 245K |
| 代理商： | LT1342 |
5
LT1342
C
HARA TERISTICS
U
A
TYPICAL PERFOR
CE
Receiver Output Waveforms
Receiver Short-Circuit Current
Driver Output Waveforms
DRIVER OUTPUT
R
= 3k
C
L
= 2500pF
INPUT
DRIVER OUTPUT
R
L
= 3k
PI FU
V
CC
:
5V Input Supply Pin. This pin should be decoupled
with a 0.1
μ
F ceramic capacitor close to the package pin.
Insufficient supply bypassing can result in low output
drive levels and erratic charge pump operation.
V
L
:
3V Logic Supply Pin. Provides power to the receiver
outputs. Decouple with a 0.1
μ
F ceramic capacitor.
GND:
Ground Pin.
ON/OFF:
A TTL/CMOS Compatible Operating Mode Con-
trol. A logic low puts the device in the low power shutdown
mode. Drivers and receivers assume a high impedance
state in shutdown. The transceiver consumes almost no
supply current while in shutdown. A logic high fully
enables the transceiver. An ON/OFF logic low signal super-
sedes the state of the DRIVER DISABLE pin.
U
DRIVER DISABLE:
This pin provides an alternate control
for the charge pump and RS232 drivers. A logic high on
this pin shuts down the charge pump and places all drivers
in a high impedance state. All five receivers remain active
under these conditions. Floating the DRIVER DISABLE pin
or driving it to a logic low level fully enables the trans-
ceiver. A logic low on the ON/OFF pin supersedes the state
of the DRIVER DISABLE pin. Supply current drops to 3mA
when in driver disable mode.
V
+
:
Positive Supply Output (RS232 Drivers). V
+
≈
2V
CC
–
1.5V. This pin requires an external charge storage capaci-
tor C
≥
0.1
μ
F, tied to ground or V
CC
. With multiple
transceivers, the V
+
and V
–
pins may be paralleled into
common charge storage capacitors. Larger value capaci-
tors may be used to reduce supply ripple.
LT1342 TPC13
Driver Short-Circuit Current
RX5 OUTPUT
C
L
= 50pF
RX1 TO RX4
OUTPUT
C
L
= 50pF
INPUT
LT1342 TPC12
V
L
= 3V
TEMPERATURE (
°
C)
–55
S
20
25
30
25
75
LT1342 TPC10
15
10
–25
0
50
100
125
5
0
I
SC+
I
SC–
TEMPERATURE (
°
C)
–55
0
S
20
50
0
50
75
LT1342 TPC11
10
40
30
–25
25
100
125
RX1 TO RX4
I
SC+
RX1 TO RX4
I
SC–
RX5 I
SC–
RX5 I
SC+
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT1342CG | OCTAL BUFFER/BUS DRIVERS 20-SOIC 0 to 70 |
| LT1342CNW | OCTAL BUFFER/BUS DRIVERS 20-SOIC 0 to 70 |
| LT1342CSW | 5V RS232 Transceiver with 3V Logic Interface |
| LT1353CS | Dual and Quad 250uA, 3MHz, 200V/us Operational Amplifiers |
| LT1352 | Octal Buffers And Line Drivers With 3-State Outputs 20-SSOP 0 to 70 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1342CG | 功能描述:IC TXRX 5V RS232 W/3VLOGC 28SSOP RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:27 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):3/3 規(guī)程:RS232，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC 包裝:管件 |
| LT1342CG#PBF | 功能描述:IC TXRX 5V RS232 W/3VLOGC 28SSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:27 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):3/3 規(guī)程:RS232，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC 包裝:管件 |
| LT1342CG#TR | 功能描述:IC TXRX 5V RS232 3V LOGIC 28SSOP RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:27 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):3/3 規(guī)程:RS232，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC 包裝:管件 |
| LT1342CG#TRPBF | 功能描述:IC TXRX 5V RS232 W/3VLOGC 28SSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:27 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):3/3 規(guī)程:RS232，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC 包裝:管件 |
| LT1342CN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Transceiver |
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