參數(shù)資料
型號: SN74LV244ATDWR
廠商: TEXAS INSTRUMENTS INC
元件分類: 總線收發(fā)器
英文描述: LV/LV-A/LVX/H SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20
封裝: GREEN, PLASTIC, SOIC-20
文件頁數(shù): 1/19頁
文件大?。?/td> 676K
代理商: SN74LV244ATDWR
www.ti.com
FEATURES
DB, DGV, DW, NS, OR PW PACKAGE
(TOP VIEW)
RGY PACKAGE
(TOP VIEW)
1
20
10
11
2
3
4
5
6
7
8
9
19
18
17
16
15
14
13
12
2OE
1Y1
2A4
1Y2
2A3
1Y3
2A2
1Y4
1A1
2Y4
1A2
2Y3
1A3
2Y2
1A4
2Y1
1OE
2A1
V
GND
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
SN74LV244AT
OCTAL BUFFER/DRIVER
WITH 3-STATE OUTPUTS
SCES572C – JUNE 2004 – REVISED AUGUST 2005
Inputs Are TTL-Voltage Compatible
I
off Supports Partial-Power-Down Mode
Operation
4.5-V to 5.5-V V
CC Operation
Latch-Up Performance Exceeds 250 mA Per
Typical t
pd = 5.4 ns at 5 V
JESD 17
Typical V
OLP (Output Ground Bounce)
ESD Protection Exceeds JESD 22
<0.8 V at V
CC = 5 V, TA = 25°C
– 2000-V Human-Body Model (A114-A)
Typical V
OHV (Output VOH Undershoot)
>2.3 V at V
CC = 5 V, TA = 25°C
– 200-V Machine Model (A115-A)
Supports Mixed-Mode Voltage Operation on
– 1000-V Charged-Device Model (C101)
All Ports
This octal buffer/driver is designed specifically to improve both the performance and density of 3-state
memory-address drivers, clock drivers, and bus-oriented receivers and transmitters.
The SN74LV244AT is organized as two 4-bit buffers/line drivers with separate output-enable (OE) inputs. When
OE is low, the device passes data from the A inputs to the Y outputs. When OE is high, the outputs are in the
high-impedance state.
ORDERING INFORMATION
TA
PACKAGE(1)
ORDERABLE PART NUMBER
TOP-SIDE MARKING
QFN – RGY
Reel of 1000
SN74LV244ATRGYR
VV244
Tube of 25
SN74LV244ATDW
SOIC – DW
LV244AT
Reel of 2000
SN74LV244ATDWR
SOP – NS
Reel of 2000
SN74LV244ATNSR
74LV244AT
–40
°C to 85°C
SSOP – DB
Reel of 2000
SN74LV244ATDBR
LV244AT
Tube of 70
SN74LV244ATPW
TSSOP – PW
Reel of 2000
SN74LV244ATPWR
LV244AT
Reel of 250
SN74LV244ATPWT
TVSOP – DGV
Reel of 2000
SN74LV244ATDGVR
LV244AT
(1)
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
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.
PRODUCTION DATA information is current as of publication date.
Copyright 2004–2005, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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