SN74LVC8T245RHLR Programmable Logic ICS Voltage Levels 8-Bit Dual-Supply Bus Xcvr
SN74LVC8T245RHLR Programmable Logic ICS Voltage Levels 8-Bit Dual-Supply Bus Xcvr
1 Features
- Control Inputs VIH/VIL Levels Are Referenced to VCCA Voltage
-
VCC Isolation Feature – If Either VCC 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
-
Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
-
ESD Protection Exceeds JESD 22
-
– 4000-V Human-Body Model (A114-A)
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– 100-V Machine Model (A115-A)
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– 1000-V Charged-Device Model (C101)
-
2 Applications
-
Personal Electronic
-
Industrial
-
Enterprise
-
Telecom
3 Description
This 8-bit noninverting bus transceiver uses two separate configurable power-supply rails. The SN74LVC8T245 is optimized to operate with VCCA andVCCB setat1.65Vto5.5V.TheAportis 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.
The SN74LVC8T245 is designed for asynchronous communication between two data buses. The logic levels of the direction-control (DIR) input and the output-enable (OE) input activate either the B-port outputs or the A-port outputs or place both output ports into the high-impedance mode. The device transmits data from the A bus to the B bus when the B-port outputs are activated, and from the B bus to the A bus when the A-port outputs are activated. The input circuitry on both A and B ports is always active and must have a logic HIGH or LOW level applied to prevent excess ICC and ICCZ.
The SN74LVC8T245 is designed so that the control pins (DIR and OE) are supplied by VCCA.
Device Information
|
PART NUMBER |
PACKAGE |
BODY SIZE (NOM) |
|
SN74LVC8T245 |
SSOP (24) |
8.20 mm x 5.30 mm |
|
SSOP (24) |
8.65 mm x 3.90 mm |
|
|
TSSOP (24) |
7.80 mm x 4.40 mm |
|
|
TVSOP (24) |
5.00 mm x 4.40 mm |
|
|
VQFN (24) |
5.50 mm x 3.50 mm |
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