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參數(shù)資料
| 型號(hào)： | MC145408 |
| 廠商： | Motorola, Inc. |
| 英文描述： | Driver/ Receiver(驅(qū)動(dòng)器/接收器) |
| 中文描述： | 驅(qū)動(dòng)器/接收器（驅(qū)動(dòng)器/接收器） |
| 文件頁數(shù)： | 5/9頁 |
| 文件大小： | 184K |
| 代理商： | MC145408 |
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.
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| MC145408DWR2 | 制造商:Freescale Semiconductor 功能描述:CMOS DRIVER/RECEIVER, 5 X 5 |
| MC145412P | 制造商:Motorola Inc 功能描述: |
| MC14541BCP | 功能描述:計(jì)時(shí)器和支持產(chǎn)品 LOG CMOS OSILATR TIMER RoHS:否 制造商:Micrel 類型:Standard 封裝 / 箱體:SOT-23 內(nèi)部定時(shí)器數(shù)量:1 電源電壓-最大:18 V 電源電壓-最小:2.7 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel |
| MC14541BCPG | 功能描述:計(jì)時(shí)器和支持產(chǎn)品 3-18V with Auto RoHS:否 制造商:Micrel 類型:Standard 封裝 / 箱體:SOT-23 內(nèi)部定時(shí)器數(shù)量:1 電源電壓-最大:18 V 電源電壓-最小:2.7 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel |
| MC14541BD | 功能描述:計(jì)時(shí)器和支持產(chǎn)品 LOG CMOS OSILATR TIMER RoHS:否 制造商:Micrel 類型:Standard 封裝 / 箱體:SOT-23 內(nèi)部定時(shí)器數(shù)量:1 電源電壓-最大:18 V 電源電壓-最小:2.7 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel |
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