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參數(shù)資料
| 型號： | MM74HC245ASJ |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | Low Current Operation at 250??A???Low Reverse Leakage,Low Noise Zener Diode(250??A?·￥?????μ?μ?????°????????????μ?μ?????????a?￡°???é???o3?o???????) |
| 中文描述： | HC/UH SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20 |
| 封裝： | 5.30 MM, EIAJ TYPE2, SOP-20 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 104K |
| 代理商： | MM74HC245ASJ |
2005 Fairchild Semiconductor Corporation
DS005165
www.fairchildsemi.com
September 1983
Revised May 2005
M
MM74HC245A
Octal 3-STATE Transceiver
General Description
The MM74HC245A 3-STATE bidirectional 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
and high noise immunity usually associated with CMOS cir-
cuitry, yet has speeds comparable to low power Schottky
TTL circuits.
This device has an active LOW enable input G and a direc-
tion control input, DIR. When DIR is HIGH, data flows from
the A inputs to the B outputs. When DIR is LOW, data flows
from the B inputs to the A outputs. The MM74HC245A
transfers true data from one bus to the other.
This device can drive up to 15 LS-TTL Loads, and does not
have Schmitt trigger inputs. All inputs are protected from
damage due to static discharge by diodes to V
CC
and
ground.
Features
I
Typical propagation delay: 13 ns
I
Wide power supply range: 2–6V
I
Low quiescent current: 80
P
A maximum (74 HC)
I
3-STATE outputs for connection to bus oriented systems
I
High output drive: 6 mA (minimum)
I
Same as the 645
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
MM74HC245AWM
MM74HC245ASJ
MM74HC245AMTC
MM74HC245AN
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
Inputs
Operation
G
DIR
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 |
|---|---|
| MM74HC251M | Zener Diode 225 mW 56 V ±5%SOT-23; Package: SOT-23 (TO-236) 3 LEAD; No of Pins: 3; Container: Tape and Reel; Qty per Container: 3000 |
| MM74HC251MTC | Zener Diode 225 mW 56 V ±5%SOT-23; Package: SOT-23 (TO-236) 3 LEAD; No of Pins: 3; Container: Tape and Reel; Qty per Container: 3000 |
| MM74HC251N | 8-Channel 3-STATE Multiplexer |
| MM74HC251SJ | Zener Diode 225 mW 5.1 V ±5%SOT-23; Package: SOT-23 (TO-236) 3 LEAD; No of Pins: 3; Container: Tape and Reel; Qty per Container: 3000 |
| MM74HC251 | Low Current Operation at 250??A???Low Reverse Leakage,Low Noise Zener Diode(250??A?·￥?????μ?μ?????°????????????μ?μ?????????a?￡°???é???o3?o???????) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MM74HC245ASJX | 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 |
| MM74HC245ASJX_NL | 功能描述:總線收發(fā)器 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 |
| MM74HC245AWM | 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 |
| MM74HC245AWM | 制造商:Fairchild Semiconductor Corporation 功能描述:IC TRANSCEIVERS LOGIC ROHS COMPLIANT:NO |
| MM74HC245AWM | 制造商:Fairchild Semiconductor Corporation 功能描述:IC 74HC CMOS SMD 74HC245 SOIC20 |
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