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參數(shù)資料
| 型號(hào)： | MC74LVX245M |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 通用總線功能 |
| 英文描述： | LOW-VOLTAGE CMOS |
| 中文描述： | LV/LV-A/LVX/H SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20 |
| 封裝： | LEAD FREE, EIAJ, SO-20 |
| 文件頁(yè)數(shù)： | 1/7頁(yè) |
| 文件大?。?/td> | 163K |
| 代理商： | MC74LVX245M |
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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相關(guān)代理商/技術(shù)參數(shù) |
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| MC74LVX245MEL | 功能描述:IC BUS TRANSCVR 8BIT 20SOEIAJ RoHS:否 類別:集成電路 (IC) >> 邏輯 - 緩沖器，驅(qū)動(dòng)器，接收器，收發(fā)器 系列:74LVX 標(biāo)準(zhǔn)包裝:1 系列:74ACTQ 邏輯類型:緩沖器/線路驅(qū)動(dòng)器，非反相 元件數(shù):1 每個(gè)元件的位元數(shù):8 輸出電流高，低:24mA，24mA 電源電壓:4.5 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:20-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:20-TSSOP 包裝:Digi-Reel® 其它名稱:74ACTQ541MTCDKR |
| MC74LVX245MELG | 功能描述:總線收發(fā)器 LOG CMOS TRNSCIEVR OCTAL 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(shí)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 |
| MC74LVX245MG | 功能描述:總線收發(fā)器 LOG CMOS TRNSCIEVR OCTAL 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(shí)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 |
| MC74LVX257D | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 2-3.6V Quad 3-State RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| MC74LVX257DG | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 2-3.6V Quad 3-State 2-Channel RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
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