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參數(shù)資料
| 型號： | SN74LVCH244ADB |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS |
| 中文描述： | 八路緩沖器/ 3司機態(tài)輸出 |
| 文件頁數(shù)： | 1/9頁 |
| 文件大?。?/td> | 126K |
| 代理商： | SN74LVCH244ADB |
SN54LVCH244A, SN74LVCH244A
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCES009G – JULY 1995 - REVISED JUNE 1998
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
EPIC
(Enhanced-Performance Implanted
CMOS) Submicron Process
Typical V
OLP
(Output Ground Bounce)
< 0.8 V at V
CC
= 3.3 V, T
A
= 25
°
C
Typical V
OHV
(Output V
OH
Undershoot)
> 2 V at V
CC
= 3.3 V, T
A
= 25
°
C
Power Off Disables Outputs, Permitting
Live Insertion
Support Mixed-Mode Signal Operation on
All Ports (5-V Input/Output Voltage With
3.3-V V
CC
)
ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
Latch-Up Performance Exceeds 250 mA Per
JESD 17
Bus Hold on Data Inputs Eliminates the
Need for External Pullup/Pulldown
Resistors
Package Options Include Plastic
Small-Outline (DW), Shrink Small-Outline
(DB), and Thin Shrink Small-Outline (PW)
Packages, Ceramic Flat (W) Package,
Ceramic Chip Carriers (FK), and DIPs (J)
description
The SN54LVCH244A octal buffer/line driver is designed for 2.7-V to 3.6-V V
CC
operation and the
SN74LVCH244A octal buffer/line driver is designed for 1.65-V to 3.6-V V
CC
operation.
These devices are organized as two 4-bit line drivers with separate output-enable (OE) inputs. When OE is low,
these devices pass data from the A inputs to the Y outputs. When OE is high, the outputs are in the
high-impedance state.
Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.
Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators
in a mixed 3.3-V/5-V system environment.
To ensure the high-impedance state during power up or power down, OE should be tied to V
CC
through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
The SN54LVCH244A is characterized for operation over the full military temperature range of –55
°
C to 125
°
C.
The SN74LVCH244A is characterized for operation from –40
°
C to 85
°
C.
Copyright
1998, Texas Instruments Incorporated
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.
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.
EPIC is a trademark of Texas Instruments Incorporated.
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.
SN54LVCH244A . . . J OR W PACKAGE
SN74LVCH244A . . . DB, DW, OR PW PACKAGE
(TOP VIEW)
SN54LVCH244A . . . FK PACKAGE
(TOP VIEW)
1
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
V
CC
2OE
1Y1
2A4
1Y2
2A3
1Y3
2A2
1Y4
2A1
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
2
1
1
2
2
2
G
2
V
C
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SN54LVCH245AFK | OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS |
| SN54LVCH245AJ | Analog Multiplexers/Demultiplexers; Package: SOEIAJ-16; No of Pins: 16; Container: Rail; Qty per Container: 50 |
| SN54LVCH245AW | Analog Multiplexers/Demultiplexers; Package: PDIP-16; No of Pins: 16; Container: Rail; Qty per Container: 500 |
| SN74LVCH245ADB | OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS |
| SN54LVT162240 | Analog Multiplexers/Demultiplexers; Package: PDIP-16; No of Pins: 16; Container: Rail; Qty per Container: 500 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN74LVCH244ADBQR | 功能描述:緩沖器和線路驅(qū)動器 Octal Buffer/Driver W/3-State Output 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 |
| SN74LVCH244ADBQRE4 | 功能描述:緩沖器和線路驅(qū)動器 Octal Buffer/Driver W/3-State Output 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 |
| SN74LVCH244ADBQRG4 | 功能描述:緩沖器和線路驅(qū)動器 Octal Buffer/Driver W/3-State Output 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 |
| SN74LVCH244ADBR | 功能描述:緩沖器和線路驅(qū)動器 Tri-State Octal 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 |
| SN74LVCH244ADBRE4 | 功能描述:緩沖器和線路驅(qū)動器 24-Bit Bus-Exchange Switch 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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