參數(shù)資料
型號(hào)： 74ACTQ245FC
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 總線收發(fā)器
英文描述： ACT SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, CDFP20
封裝： CERPACK-20
文件頁(yè)數(shù)： 1/10頁(yè)
文件大小： 207K
代理商： 74ACTQ245FC
TLF10236
54ACQ74ACQ245
54ACTQ74ACTQ245
Quiet
Series
Octal
Bidirectional
Transceiver
with
TRI-STATE
InputsOutputs
March 1993
54ACQ74ACQ245
54ACTQ74ACTQ245
Quiet Series Octal Bidirectional Transceiver
with TRI-STATE
InputsOutputs
General Description
The ’ACQ’ACTQ245 contains eight non-inverting bidirec-
tional buffers with TRI-STATE outputs and is intended for
bus-oriented applications
Current sinking capability is
24 mA at both the A and B ports The TransmitReceive
(TR) input determines the direction of data flow through
the bidirectional transceiver Transmit (active-HIGH) en-
ables data from A ports to B ports Receive (active-LOW)
enables data from B ports to A ports The Output Enable
input when HIGH disables both A and B ports by placing
them in a HIGH Z condition
The ’ACQ’ACTQ utilizes NSC Quiet Series technology to
guarantee quiet output switching and improve dynamic
threshold performance
FACT Quiet SeriesTM features
GTOTM output control and undershoot corrector in addition
to a split ground bus for superior performance
Features
Y
ICC and IOZ reduced by 50%
Y
Guaranteed simultaneous switching noise level and
dynamic threshold performance
Y
Guaranteed pin-to-pin skew AC performance
Y
Improved latch-up immunity
Y
TRI-STATE outputs drive bus lines or buffer memory
address registers
Y
Outputs sourcesink 24 mA
Y
Faster prop delays than the standard ’ACT245
Y
4 kV minimum ESD immunity (‘ACQ)
Y
Standard Military Drawing (SMD)
’ACTQ245 5962-8766303
’ACQ245 5962-92177
Logic Symbols
Connection Diagrams
TLF10236 – 1
Pin
Description
Names
OE
Output Enable Input
TR
TransmitReceive Input
A0–A7
Side A TRI-STATE
Inputs or TRI-STATE
Outputs
B0–B7
Side B TRI-STATE
Inputs or TRI-STATE
Outputs
Truth Table
Inputs
Outputs
OE
TR
L
Bus B Data to Bus A
L
H
Bus A Data to Bus B
H
X
HIGH-Z State
H e HIGH Voltage Level
L e LOW Voltage Level
X e Immaterial
IEEEIEC
TLF10236 – 2
Pin Assignment
for DIP Flatpak QSOP and SOIC
TLF10236 – 3
Pin Assignment
for LCC
TLF10236 – 4
TRI-STATE
is a registered trademark of National Semiconductor Corporation
FACTTM FACT Quiet SeriesTM and GTOTM are trademarks of National Semiconductor Corporation
C1995 National Semiconductor Corporation
RRD-B30M75Printed in U S A
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
74ACTQ245MSA 功能描述:總線收發(fā)器 Octal Bidir 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
74ACTQ245MSA_Q 功能描述:總線收發(fā)器 Octal Bidir 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
74ACTQ245MSAX 功能描述:總線收發(fā)器 Octal Bidir 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
74ACTQ245MTC 功能描述:總線收發(fā)器 Octal Bidir 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
74ACTQ245MTCX 功能描述:總線收發(fā)器 Octal Bidir 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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