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參數(shù)資料
| 型號： | MC145404P |
| 廠商： | MOTOROLA INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | UltraLow-Supply Current/Supply-Voltage Supervisory Circuits 6-SOT-23 -40 to 85 |
| 中文描述： | LINE TRANSCEIVER, PDIP20 |
| 封裝： | PLASTIC, DIP-20 |
| 文件頁數(shù)： | 5/9頁 |
| 文件大?。?/td> | 182K |
| 代理商： | MC145404P |
MC145403
MC145404
MC145405
MC145408
MOTOROLA
5
Figure 1. Power–Off Source Resistance
Illustrated for MC145408
DI5
VDD
14
1
24
11
16
18
20
22
9
3
5
7
13
12
GND
VDDVCC
DI1
DI4
DI3
DI2
Tx5
Tx4
Tx3
Tx2
Tx1
Vin =
±
2 V
R
out
V
in
I
Figure 2. Switching Characteristics
50%
DI
+ 3 V
0 V
tf
10%
90%
tr
tPHL
tPLH
VOL
VOH
Tx
DRIVERS
50%
Rx
+ 3 V
0 V
tf
10%
90%
tr
tPHL
tPLH
VOL
VOH
DO
RECEIVERS
Figure 3. Slew Rate Characteristics
Tx
+
3 V
–
3 V
tSHL
DRIVERS
+
3 V
–
3 V
tSLH
Slew Rate =
6 V
tSLH or tSHL
PIN DESCRIPTIONS
VCC
Digital Power Supply
The digital supply pin, which is connected to the logic
power supply (+ 5.5 V maximum).
GND
Ground
Ground return pin is typically connected to the signal
ground pin of the EIA–232–E connector (Pin 7) as well as to
the logic power supply ground.
VDD
Most Positive Device Pin
The most positive power supply pin, which is typically + 5
to + 12 V.
VSS
Most Negative Device Pin
The most negative power supply pin, which is typically – 5
to – 12 V.
Rx1 – Rxn
Receive Data Input Pins
These are the EIA–232–E receive signal inputs. A voltage
between + 3 and + 25 V is decoded as a space, and causes
the corresponding DO pin to swing to ground (0 V). A voltage
between – 3 and – 25 V is decoded as a mark, and causes
the corresponding DO pin to swing to VCC.
DO1 – DOn
Data Output Pins
These are the receiver digital output pins which swing from
VCC to GND. Each output pin is capable of driving one
LSTTL input load.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC145403 | Drivers/Receivers |
| MC145404DW | Drivers/Receivers |
| MC145403DW | UltraLow-Supply Current/Supply-Voltage Supervisory Circuits 6-SOT-23 -40 to 85 |
| MC145403P | UltraLow-Supply Current/Supply-Voltage Supervisory Circuits 6-SOT-23 -40 to 85 |
| MC145405DW | UltraLow-Supply Current/Supply-Voltage Supervisory Circuits 6-SOT-23 -40 to 85 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC145405P | 制造商:Motorola Inc 功能描述: |
| MC145406D | 功能描述:總線收發(fā)器 CMOS RS232-D TRPLE RECEIVER/DR RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
| MC145406D,512 | 功能描述:緩沖器和線路驅(qū)動器 CMOS RS232-D TRPLE RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| MC145406D,518 | 功能描述:緩沖器和線路驅(qū)動器 TRIPLE DRVR/RECEIVER RS232-D/V.28 RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| MC145406D | 制造商:NXP Semiconductors 功能描述:TRANSCEIVER TRIPLE RS232 145406 |
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