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參數(shù)資料
| 型號： | 74VHC240N |
| 廠商： | Fairchild Semiconductor |
| 文件頁數(shù)： | 1/9頁 |
| 文件大小： | 0K |
| 描述： | IC INVERTER DUAL 4-INPUT 20DIP |
| 標(biāo)準(zhǔn)包裝： | 18 |
| 系列： | 74VHC |
| 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： | 2 V ~ 5.5 V |
| 電流 - 靜態(tài)（最大值）： | 4µA |
| 輸出電流高，低： | 8mA，8mA |
| 邏輯電平 - 低： | 0.5V |
| 邏輯電平 - 高： | 1.5V |
| 額定電壓和最大 CL 時(shí)的最大傳播延遲： | 7.5ns @ 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-DIP |
| 封裝/外殼： | 20-DIP（0.300"，7.62mm） |
| 包裝： | 管件 |
tm
74VHC240
Octal
Buff
er/Line
Driver
with
3-ST
A
TE
Outputs
April 2007
1992 Fairchild Semiconductor Corporation
www.fairchildsemi.com
74VHC240 Rev. 1.3
74VHC240
Octal Buffer/Line Driver with 3-STATE Outputs
Features
■ High Speed: tPD = 3.6ns (typ) at TA = 25°C
■ Low power dissipation: ICC = 4A (max) @ TA = 25°C
■ High noise immunity: VNIH = VNIL = 28% VCC (min.)
■ Power down protection is provided on all inputs
■ Low noise: VOLP = 0.9V (max.)
■ Pin and function compatible with 74HC240
General Description
The VHC240 is an advanced high speed CMOS octal
bus buffer fabricated with silicon gate CMOS technology.
It achieves high speed operation similar to equivalent
Bipolar Schottky TTL while maintaining the CMOS low
power dissipation. The VHC240 is an inverting 3-STATE
buffer having two active-LOW output enables. This
device is designed to drive buslines or buffer memory
address registers.
An input protection circuit ensures that 0V to 7V can be
applied to the input pins without regard to the supply
voltage. This device can be used to interface 5V to 3V
systems and two supply systems such as battery
backup. This circuit prevents device destruction due to
mismatched supply and input voltages.
Ordering Information
Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the
ordering number. Pb-Free package per JEDEC J-STD-020B.
Connection Diagram
Pin Descriptions
Order Number
Package
Number
Package Description
74VHC240M
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
74VHC240SJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74VHC240MTC
MTC20
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm
Wide
Pin Names
Description
OE1, OE2
3-STATE Output Enable Inputs
I0–I7
Inputs
O0–O7
Outputs 3-STATE Outputs
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74VHC240N_Q | 功能描述:緩沖器和線路驅(qū)動器 Oct Buffer/Line Drv 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 |
| 74VHC240SJ | 功能描述:緩沖器和線路驅(qū)動器 Oct Buffer/Line Drv 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 |
| 74VHC240SJ_Q | 功能描述:緩沖器和線路驅(qū)動器 Oct Buffer/Line Drv 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 |
| 74VHC240SJX | 功能描述:緩沖器和線路驅(qū)動器 Oct Buffer/Line Drv 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 |
| 74VHC240T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:OCTAL BUS BUFFER WITH 3 STATE OUTPUTS INVERTED |
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