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參數(shù)資料
| 型號： | MC74LVX245 |
| 廠商： | Motorola, Inc. |
| 英文描述： | LOW-VOLTAGE CMOS |
| 中文描述： | 低電壓CMOS |
| 文件頁數(shù)： | 1/7頁 |
| 文件大?。?/td> | 163K |
| 代理商： | MC74LVX245 |
SEMICONDUCTOR TECHNICAL DATA
1
REV 0
Motorola, Inc. 1997
6/97
The MC74LVX245 is an advanced high speed CMOS octal bus
transceiver.
It is intended for two–way asynchronous communication between data
buses. The direction of data transmission is determined by the level of the
T/R input. The output enable pin (OE) can be used to disable the device,
so that the buses are effectively isolated.
All inputs are equipped with protection circuits against static discharge.
High Speed: tPD = 4.7ns (Typ) at VCC = 3.3V
Low Power Dissipation: ICC = 4
μ
A (Max) at TA = 25
°
C
Power Down Protection Provided on Inputs
Balanced Propagation Delays
Low Noise: VOLP = 0.8V (Max)
Pin and Function Compatible with Other Standard Logic Families
Latchup Performance Exceeds 300mA
ESD Performance: HBM > 2000V; Machine Model > 200V
APPLICATION NOTES
1. Do not force a signal on an I/O pin when it is an active output, damage may
occur.
2. All floating (high impedence) input or I/O pins must be fixed by means of
pull up or pull down resistors or bus terminator ICs.
3. A parasitic diode is formed between the bus and VCC terminals. Therefore,
the LVX245 cannot be used to interface 5V to 3V systems directly.
Figure 1. 20–Lead Pinout
(Top View)
19
20
18
17
16
15
14
2
1
3
4
5
6
7
VCC
13
8
12
9
11
10
OE
B0
B1
B2
B3
B4
B5
B6
B7
T/R
A0
A1
A2
A3
A4
A5
A6
A7
GND
LOW–VOLTAGE CMOS
DW SUFFIX
20–LEAD SOIC PACKAGE
CASE 751D–04
DT SUFFIX
20–LEAD TSSOP PACKAGE
CASE 948E–02
M SUFFIX
20–LEAD SOIC EIAJ PACKAGE
CASE 967–01
PIN NAMES
Function
Output Enable Input
Transmit/Receive Input
Side A 3–State Inputs or 3–State
Outputs
Side B 3–State Inputs or 3–State
Outputs
Pins
OE
T/R
A0–A7
B0–B7
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| MC74LVX245M | LOW-VOLTAGE CMOS |
| MC74LVX4245 | LOW-VOLTAGE CMOS |
| MC74LVX4245DT | LOW-VOLTAGE CMOS |
| MC74LVX4245DW | LOW-VOLTAGE CMOS |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC74LVX245DT | 制造商:ON Semiconductor 功能描述:Bus XCVR Single 8-CH 3-ST 20-Pin TSSOP 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel |
| MC74LVX245DTR2 | 功能描述:總線收發(fā)器 2-5.5V Octal Bus 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 |
| MC74LVX245DTR2G | 功能描述:總線收發(fā)器 2-5.5V Octal Bus Transceiver 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 |
| MC74LVX245DW | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MC74LVX245DWR2 | 功能描述:總線收發(fā)器 2-5.5V Octal Bus 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 |
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