参数资料
型号: SN74LV245ATPWR
厂商: TEXAS INSTRUMENTS INC
元件分类: 总线收发器
英文描述: LV/LV-A/LVX/H SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20
封装: GREEN, PLASTIC, TSSOP-20
文件页数: 1/21页
文件大小: 751K
代理商: SN74LV245ATPWR
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
OE
B1
B2
B3
B4
B5
B6
B7
A1
A2
A3
A4
A5
A6
A7
A8
DIR
B8
V
GND
CC
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
VCC
OE
B1
B2
B3
B4
B5
B6
B7
B8
DESCRIPTION/ORDERING INFORMATION
SN74LV245AT
OCTAL BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SCLS605B – DECEMBER 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 of 3.5 ns at 5 V
JESD 17
Typical V
OLP (Output Ground Bounce) <0.8 V
ESD Protection Exceeds JESD 22
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
– 1000-V Charged-Device Model (C101)
xxxxxxx
Supports Mixed-Mode Voltage Operation on
All Ports
This octal bus transceiver is designed for asynchronous two-way communication between data buses. The
control-function implementation minimizes external timing requirements.
The SN74LV245AT allows data transmission from the A bus to the B bus or from the B bus to the A bus,
depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to
disable the device so that the buses are effectively isolated.
ORDERING INFORMATION
TA
PACKAGE(1)
ORDERABLE PART NUMBER
TOP-SIDE MARKING
QFN – RGY
Tape and reel
SN74LV245ATRGYR
VV245
Tube
SN74LV245ATDW
SOIC – DW
LV245A
Tape and reel
SN74LV245ATDWR
–40
°C to 85°C
SOP – NS
Tape and reel
SN74LV245ATNSR
74LV245A
SSOP – DB
Tape and reel
SN74LV245ATDBR
LV245A
TSSOP – PW
Tape and reel
SN74LV245ATPWR
LV245AT
TVSOP – DGV
Tape and reel
SN74LV245ATGVR
LV245A
(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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