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參數(shù)資料
| 型號(hào)： | MM74HCT245 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Micropower 5V, 100mA Low Dropout Linear Regulator; Package: SOIC-8 Narrow Body; No of Pins: 8; Container: Tape and Reel; Qty per Container: 2500 |
| 中文描述： | 八路三態(tài)收發(fā)器 |
| 文件頁(yè)數(shù)： | 1/7頁(yè) |
| 文件大?。?/td> | 103K |
| 代理商： | MM74HCT245 |
February 1984
Revised February 1999
M
1999 Fairchild Semiconductor Corporation
DS005366.prf
www.fairchildsemi.com
MM74HCT245
Octal 3-STATE Transceiver
General Description
The MM74HCT245 3-STATE bi-directional buffer utilizes
advanced silicon-gate CMOS technology and is intended
for two-way asynchronous communication between data
buses. It has high drive current outputs which enable high
speed operation even when driving large bus capaci-
tances. This circuit possesses the low power consumption
of CMOS circuitry, yet has speeds comparable to low
power Schottky TTL circuits.
This device is TTL input compatible and can drive up to 15
LS-TTL loads, and all inputs are protected from damage
due to static discharge by diodes to V
CC
and ground.
The MM74HCT245 has one active low enable input (G),
and a direction control (DIR). When the DIR input is HIGH,
data flows from the A inputs to the B outputs. When DIR is
LOW, data flows from B to A.
MM74HCT devices are intended to interface between TTL
and NMOS components and standard CMOS devices.
These parts are also plug-in replacements for LS-TTL
devices and can be used to reduce power consumption in
existing designs.
Features
I
TTL input compatible
I
3-STATE outputs for connection to system busses
I
High output drive current: 6 mA (min)
I
High speed: 16 ns typical propagation delay
I
Low power: 80
μ
A (74HCT Series)
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Pin Assignments for DIP, SOIC, SOP and TSSOP
Top View
Truth Table
H
=
HIGH Level
L
=
LOW Level
X
=
Irrelevant
Order Number
MM74HCT245WM
MM74HCT245SJ
MM74HCT245MTC
MM74HCT245N
Package Number
M20B
M20D
MTC20
N20A
Package Description
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide
Control
Operation
Inputs
G
DIR
245
L
L
B data to A bus
L
H
A data to B bus
H
X
isolation
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MM74HCT245MTC | Octal 3-STATE Transceiver |
| MM74HCT245N | Micropower 5V, 100mA Low Dropout Linear Regulator; Package: D2PAK-3; No of Pins: 3; Container: Rail; Qty per Container: 50 |
| MM74HCT245SJ | Micropower 5V, 100mA Low Dropout Linear Regulator; Package: D2PAK-3; No of Pins: 3; Container: Tape and Reel; Qty per Container: 750 |
| MM74HCT245WM | Micropower 5V, 100mA Low Dropout Linear Regulator; Package: D2PAK-3; No of Pins: 3; Container: Tape and Reel; Qty per Container: 750 |
| MM74HCT273SJ | Octal D-Type Flip-Flop with Clear |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MM74HCT245MTC | 功能描述:總線收發(fā)器 Octal 3-STATE Trans 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 |
| MM74HCT245MTC_Q | 功能描述:總線收發(fā)器 Octal 3-STATE Trans 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 |
| MM74HCT245MTCX | 功能描述:總線收發(fā)器 Octal 3-STATE Trans 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 |
| MM74HCT245MTCX | 制造商:Fairchild Semiconductor Corporation 功能描述:BUFFER / DRIVER / RECEIVER LOGIC IC |
| MM74HCT245N | 功能描述:總線收發(fā)器 Octal 3-STATE Trans 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 |
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