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74LVCH8T245DBRG4 数据表(PDF) 1 Page - Texas Instruments

部件名 74LVCH8T245DBRG4
功能描述  8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

74LVCH8T245DBRG4 数据表(HTML) 1 Page - Texas Instruments

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FEATURES
DB, DGV, OR PW PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
VCCA
DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
GND
VCCB
VCCB
OE
B1
B2
B3
B4
B5
B6
B7
B8
GND
RHL PACKAGE
(TOP VIEW)
1
24
12
13
2
3
4
5
6
7
8
9
10
11
23
22
21
20
19
18
17
16
15
14
VCCB
OE
B1
B2
B3
B4
B5
B6
B7
B8
DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
DESCRIPTION/ORDERING INFORMATION
SN74LVCH8T245
8-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
SCES637A – AUGUST 2005 – REVISED FEBRUARY 2007
• Control Inputs V
IH/VIL Levels Are Referenced
• Bus Hold on Data Inputs Eliminates the Need
to V
CCA Voltage
for External Pullup/Pulldown Resistors
• V
CC Isolation Feature – If Either VCC Input Is at
• Latch-Up Performance Exceeds 100 mA Per
GND, All Are in the High-Impedance State
JESD 78, Class II
• Fully Configurable Dual-Rail Design Allows
• ESD Protection Exceeds JESD 22
Each Port to Operate Over the Full 1.65-V to
4000-V Human-Body Model (A114-A)
5.5-V Power-Supply Range
200-V Machine Model (A115-A)
BKR
1000-V Charged-Device Model (C101)
This
8-bit
noninverting
bus
transceiver
uses
two
separate
configurable
power-supply
rails.
The
SN74LVCH8T245 is optimized to operate with VCCA and VCCB set at 1.65 V to 5.5 V. The A port is designed to
track VCCA. VCCA accepts any supply voltage from 1.65 V to 5.5 V. The B port is designed to track VCCB. VCCB
accepts any supply voltage from 1.65 V to 5.5 V. This allows for universal low-voltage bidirectional translation
between any of the 1.8-V, 2.5-V, 3.3-V, and 5.5-V voltage nodes.
ORDERING INFORMATION
TA
PACKAGE(1)
ORDERABLE PART NUMBER
TOP-SIDE MARKING
QFN – RHL
Reel of 1000
SN74LVCH8T245RHLR
NJ245
SSOP – DB
Reel of 2000
SN74LVCH8T245DBR
NJ245
–40
°C to 85°C
Tube of 60
SN74LVCH8T245PW
TSSOP – PW
NJ245
Reel of 2000
SN74LVCH8T245PWR
TVSOP – DGV
Reel of 2000
SN74LVCH8T245DGVR
NJ245
(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 © 2005–2007, 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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