參數(shù)資料
型號(hào)： 74ACT245SJX
廠商： FAIRCHILD SEMICONDUCTOR CORP
元件分類： 通用總線功能
英文描述： Single 8-bit Bus Transceiver
中文描述： ACT SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20
封裝： 5.30 MM, LEAD FREE, EIAJ TYPE2, SOP-20
文件頁數(shù)： 1/9頁
文件大小： 271K
代理商： 74ACT245SJX
1/9
April 2001
I
HIGH SPEED: t
PD
= 5.4ns (TYP.) at V
CC
= 5V
LOW POWER DISSIPATION:
I
CC
= 4
μ
A(MAX.) at T
A
=25°C
COMPATIBLE WITH TTL OUTPUTS
V
IH
= 2V (MIN.), V
IL
= 0.8V (MAX.)
50
TRANSMISSION LINE DRIVING
CAPABILITY
SYMMETRICAL OUTPUT IMPEDANCE:
|I
OH
| = I
OL
= 24mA (MIN)
BALANCED PROPAGATION DELAYS:
t
PLH
t
PHL
OPERATING VOLTAGE RANGE:
V
CC
(OPR) = 4.5V to 5.5V
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 245
IMPROVED LATCH-UP IMMUNITY
I
I
I
I
I
I
I
I
DESCRIPTION
The 74ACT245 is an advanced high-speed CMOS
OCTAL
BUS
TRANSCEIVER
fabricated with sub-micron silicon gate and
double-layer metal wiring C
2
MOS tecnology.
This IC is intended for two-way asynchronous
communication between data buses and the
direction of data transmission is determined by
DIR input. The enable input G can be used to
disable the device so that the buses are effectively
isolated.
(3-STATE)
The device is designed to interface directly High
Speed CMOS systems with TTL, NMOS and
CMOS output voltage levels.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
IT IS PROHIBITED TO APPLY A SIGNAL TO A
TERMINAL WHEN IT IS IN OUTPUT MODE AND
WHEN A BUS THERMINAL IS FLOATING (HIGH
IMPEDANCE STATE) IT IS REQUIRED TO FIX
THE INPUT LEVEL BY MEANS OF EXTERNAL
PULL DOWN OR PULL UP RESISTOR.
74ACT245
OCTAL BUS TRANSCEIVER
WITH 3 STATE OUTPUTS (NON INVERTED)
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES
PACKAGE
TUBE
T & R
DIP
SOP
TSSOP
74ACT245B
74ACT245M
74ACT245MTR
74ACT245TTR
TSSOP
DIP
SOP
相關(guān)PDF資料
PDF描述
74ACT257 QUAD 2 CHANNEL MULTIPLEXER 3-STATE
74ACT257B 8-Bit TTL/BTL Registered Transceiver 52-QFP 0 to 70
74ACT257M 8-Bit TTL/BTL Registered Transceiver 52-QFP 0 to 70
74ACT257MTC 8-Bit TTL/BTL Registered Transceiver 52-QFP 0 to 70
74ACT257PC 8-Bit TTL/BTL Registered Transceiver 52-QFP 0 to 70
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
74ACT245TTR 功能描述:總線收發(fā)器 Octal Bus Tranceiver 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
74ACT251MTC 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 3-Input Multiplexer 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
74ACT251MTC_Q 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 3-Input Multiplexer 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
74ACT251MTCX 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 3-Input Multiplexer 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
74ACT251PC 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 3-Input Multiplexer 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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