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參數(shù)資料
| 型號： | LTC1384 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Hex 2-Input NAND Drivers 20-SOIC 0 to 70 |
| 中文描述： | 5V的低功耗的RS232收發(fā)器在關(guān)機(jī)2有源接收機(jī) |
| 文件頁數(shù)： | 5/8頁 |
| 文件大小： | 217K |
| 代理商： | LTC1384 |
5
LTC1384
V
CC
:
5V Input Supply Pin. This pin should be decoupled
with a 0.1
μ
F ceramic capacitor.
GND:
Ground Pin.
ON/OFF:
TTL/CMOS Compatible Shutdown Pin. A logic
low puts the device in the Shutdown mode independent of
the EN pin. The supply current of the device drops to 35
μ
A
(two receivers alive) and both driver outputs are forced
into three-state.
EN:
TTL/CMOS Compatible Receiver Enable Pin. A logic
high forces the receiver outputs into three-state. A logic
low enables the receiver outputs.
V
+
:
Positive Supply Output (RS232 Drivers). V
+
2V
CC
–
2V. This pin requires an external capacitor C = 0.1
μ
F for
charge storage. The capacitor may be tied to ground or
V
CC
. With multiple devices, the V
+
and V
–
pins may share
a common capacitor. For large numbers of devices, in-
creasing the size of the shared common storage capaci-
tors is recommended to reduce ripple.
V
–
:
Negative Supply Output (RS232 Drivers). V
–
–(2V
CC
– 2V). This pin requires an external capacitor C = 0.1
μ
F for
charge storage.
PI FU
U
Figure 1. Driver Propagation Delay Timing
Figure 2. Receiver Propagation Delay Timing
1.4V
0V
V
CC
0V
V
+
V
–
0V
DRIVER
INPUT
DRIVER
OUTPUT
1.4V
HLD
LHD
LTC1384 F01
0.8V
V
CC
0V
2.4V
RX
INPUT
RX
OUTPUT
1.3V
HLR
1.7V
LHR
LTC1384 F02
V
CC
0V
SWITCHU
W
C1
+
, C1
–
, C2
+
, C2
–
:
Commutating Capacitor Inputs. These
pins require two external capacitors C = 0.1
μ
F: one from
C1
+
to C1
–
and another from C2
+
to C2
–
. To maintain
charge pump efficiency, the capacitor’s effective series
resistance should be less than 2
.
TR IN:
RS232 Driver Input Pins. Inputs are TTL/CMOS
compatible. The inputs of unused drivers can be left
unconnected since 300k input pull-up resistors to V
CC
are
included on chip. To minimize power consumption, the
internal driver pull-up resistors are disconnected from V
CC
in the Shutdown mode.
TR OUT:
Driver Outputs at RS232 Voltage Levels. Outputs
are in a high impedance state when in the Shutdown or V
CC
= 0V. The driver outputs are protected against ESD to
±
10kV for human body model discharges.
RX IN:
Receiver Inputs. These pins can be forced to
±
25V
without damage. The receiver inputs are protected against
ESD to
±
10kV for human body model discharges. Each
receiver provides 0.4V of hysteresis for noise immunity.
RX OUT:
Receiver Outputs with TTL/CMOS Voltage Lev-
els. A logic high at EN puts the outputs into three-state.
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| LTC1384CG | 功能描述:IC TXRX 5V RS232 LOW PWR 20-SSOP 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 |
| LTC1384CG#PBF | 功能描述:IC TXRX 5V RS232 LOW PWR 20-SSOP 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 |
| LTC1384CG#TR | 功能描述:IC TXRX RS232 5V LP SHTDN 20SSOP 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 |
| LTC1384CG#TRPBF | 功能描述:IC TXRX 5V RS232 LOW PWR 20-SSOP 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 |
| LTC1384CN | 功能描述:IC TXRX 5V RS232 LOW PWR 18-DIP 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 |
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