SN74LVC245DBR Datasheet, PDF (1/22 Pages) Texas Instruments – 8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

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SN74LVCH8T245
8-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
SCES637A – AUGUST 2005 – REVISED FEBRUARY 2007
FEATURES
• Control Inputs V_IH/V_IL Levels Are Referenced
to V_CCA Voltage
• V_CC Isolation Feature – If Either V_CC Input Is at
GND, All Are in the High-Impedance State
• Fully Configurable Dual-Rail Design Allows
Each Port to Operate Over the Full 1.65-V to
5.5-V Power-Supply Range
BKR
• Bus Hold on Data Inputs Eliminates the Need
for External Pullup/Pulldown Resistors
• Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
• ESD Protection Exceeds JESD 22
– 4000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)
DB, DGV, OR PW PACKAGE
(TOP VIEW)
RHL PACKAGE
(TOP VIEW)
V_CCA 1
DIR 2
A1 3
A2 4
A3 5
A4 6
A5 7
A6 8
A7 9
A8 10
GND 11
GND 12
24 V_CCB
23 V_CCB
22 OE
21 B1
20 B2
19 B3
18 B4
17 B5
16 B6
15 B7
14 B8
13 GND
1
DIR 2
A1 3
A2 4
A3 5
A4 6
A5 7
A6 8
A7 9
A8 10
GND 11
12
24
23 V_CCB
22 OE
21 B1
20 B2
19 B3
18 B4
17 B5
16 B6
15 B7
14 B8
13
DESCRIPTION/ORDERING INFORMATION
This 8-bit noninverting bus transceiver uses two separate configurable power-supply rails. The
SN74LVCH8T245 is optimized to operate with V_CCA and V_CCB set at 1.65 V to 5.5 V. The A port is designed to
track V_CCA. V_CCA accepts any supply voltage from 1.65 V to 5.5 V. The B port is designed to track V_CCB. V_CCB
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.
T_A
–40°C to 85°C
QFN – RHL
SSOP – DB
TSSOP – PW
TVSOP – DGV
ORDERING INFORMATION
PACKAGE ⁽¹⁾
ORDERABLE PART NUMBER
Reel of 1000
SN74LVCH8T245RHLR
Reel of 2000
SN74LVCH8T245DBR
Tube of 60
SN74LVCH8T245PW
Reel of 2000
SN74LVCH8T245PWR
Reel of 2000
SN74LVCH8T245DGVR
TOP-SIDE MARKING
NJ245
NJ245
NJ245
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.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2005–2007, Texas Instruments Incorporated