參數(shù)資料
型號(hào)： SN74ACT240NE4
廠商： Texas Instruments
文件頁(yè)數(shù)： 1/20頁(yè)
文件大?。?/td> 0K
描述： IC INVERTER DUAL 4-INPUT 20DIP
標(biāo)準(zhǔn)包裝： 20
系列： 74ACT
邏輯類型： 逆變器，緩沖器
電路數(shù)： 2
輸入數(shù)： 4
特點(diǎn)： 三態(tài)
電源電壓： 4.5 V ~ 5.5 V
電流 - 靜態(tài)（最大值）： 4µA
輸出電流高，低： 24mA，24mA
邏輯電平 - 低： 0.8V
邏輯電平 - 高： 2V
額定電壓和最大 CL 時(shí)的最大傳播延遲： 8.5ns @ 5V，50pF
工作溫度： -40°C ~ 85°C
安裝類型： 通孔
供應(yīng)商設(shè)備封裝： 20-PDIP
封裝/外殼： 20-DIP（0.300"，7.62mm）
包裝： 管件
SN54ACT240, SN74ACT240
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCAS515C JUNE 1995 REVISED OCTOBER 2002
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D 4.5-V to 5.5-V V
CC Operation
D Inputs Accept Voltages to 5.5 V
D Max t
pd of 8.5 ns at 5 V
D Inputs Are TTL Compatible
SN54ACT240 ...J OR W PACKAGE
SN74ACT240 . . . DB, DW, N, NS, OR PW PACKAGE
(TOP VIEW)
3
2
1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
1Y1
2A4
1Y2
2A3
1Y3
1A2
2Y3
1A3
2Y2
1A4
SN54ACT240...FK PACKAGE
(TOP VIEW)
2Y4
1A1
1OE
1Y4
2A2
2OE
2Y1
GND
2A1
V
CC
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
1OE
1A1
2Y4
1A2
2Y3
1A3
2Y2
1A4
2Y1
GND
VCC
2OE
1Y1
2A4
1Y2
2A3
1Y3
2A2
1Y4
2A1
description/ordering information
These octal buffers and line drivers are designed specifically to improve the performance and density of 3-state
memory address drivers, clock drivers, and bus-oriented receivers and transmitters.
The ’ACT240 devices are organized as two 4-bit buffers/drivers with separate output-enable (OE) inputs. When
OE is low, the device passes inverted data from the A inputs to the Y outputs. When OE is high, the outputs are
in the high-impedance state.
To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
ORDERING INFORMATION
TA
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP N
Tube
SN74ACT240N
SOIC
DW
Tube
SN74ACT240DW
ACT240
40
°Cto85°C
SOIC DW
Tape and reel
SN74ACT240DWR
ACT240
40
°C to 85°C
SOP NS
Tape and reel
SN74ACT240NSR
ACT240
SSOP DB
Tape and reel
SN74ACT240DBR
AD240
TSSOP PW
Tape and reel
SN74ACT240PWR
AD240
CDIP J
Tube
SNJ54ACT240J
55
°C to 125°C
CFP W
Tube
SNJ54ACT240W
LCCC FK
Tube
SNJ54ACT240FK
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Copyright
2002, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
On products compliant to MIL-PRF-38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
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SN74ACT240NSR 功能描述:緩沖器和線路驅(qū)動(dòng)器 Octal Buffer/Driver With 3-State Outputs RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel
SN74ACT240NSRE4 功能描述:緩沖器和線路驅(qū)動(dòng)器 Octal Buffer/Driver With 3-State Outputs RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel
SN74ACT240NSRG4 功能描述:緩沖器和線路驅(qū)動(dòng)器 Octal Buffers/Driver RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel
SN74ACT240PW 功能描述:緩沖器和線路驅(qū)動(dòng)器 Octal Buffer/Driver With 3-State Outputs RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel
SN74ACT240PWE4 功能描述:緩沖器和線路驅(qū)動(dòng)器 Octal Buffer/Driver With 3-State Outputs RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel
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