RS0102
2-Bit Bidirectional Voltage-Level Translator for OpenDrain and Push-Pull Application
FEATURES
•
•
•
•
•
•
•
DESCRIPTION
No Direction-Control
Data Rates
24Mbps (Push-Pull)
2Mbps (Open-Drain)
1.65V to 5.5V on A ports and 2.3V to 5.5V
on B Ports (VCCA≤VCCB)
VCC Isolation: If Either VCC is at GND, Both
Ports are in the High-Impedance State
No Power-Supply Sequencing Required:
Either VCCA or VCCB can be Ramped First
IOFF: Supports Partial-Power-Down Mode
Operation
Extended Temperature: -40°C to +85°C
APPLICATIONS
•
•
•
I2C/ SMBus
UART
GPIO
This two-bit non-inverting translator is a bidirectional
voltage-level translator and can be used to establish digital
switching compatibility between mixed-voltage systems. It
uses two separate configurable power-supply rails, with the
A ports supporting operating voltages from 1.65V to 5.5V
while it tracks the VCCA supply, and the B ports supporting
operating voltages from 2.3V to 5.5V while it tracks the VCCB
supply. This allows the support of both lower and higher
logic signal levels while providing bidirectional translation
capabilities between any of the 1.8V, 2.5V, 3.3V and 5V
voltage nodes.
When the output-enable (OE) input is low, all I/Os are
placed in the high-impedance state, which significantly
reduces the power-supply quiescent current consumption.
OE has an internal pull-down current source, as long as
VCCA is powered.
To ensure the high-impedance state during power up or
power down, OE should be tied to GND through a pulldown resistor; the minimum value of the resistor is
determined by the current-sourcing capability of the driver.
The RS0102 is available in Green SOT-23-8 packages. It
operates over an ambient temperature range of -40°C to
+85°C.
Functional Block Diagram
VCCB
VCCA
OE
One Shot
Accelerator
One Shot
Accelerator
Gate Bias
10KΩ
10KΩ
A1
B1
One Shot
Accelerator
One Shot
Accelerator
Gate Bias
10KΩ
10KΩ
A2
REV A.4
B2
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RS0102
Revision History
Note: Page numbers for previous revisions may different from page numbers in the current version.
VERSION
Change Date
A.1
2020/10/15
A.2
2021/01/09
A.3
2021/08/16
A.4
2021/11/01
Change Item
Initial version completed
Add Moisture Sensitivity Level information
Fix mistake in RS0102YVS8 PACKAGE value from 4000 to 3000
Add “Typical Characteristics” Page 14
1.Change Recommended Operating Conditions in Page 7@A.3Version.
2.Add TAPE AND REEL INFORMATION
2 / 26
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RS0102
PIN CONFIGURATIONS
TOP VIEW
TOP VIEW
VCCB
1
8
VCCA
B1
2
7
A1
B2
3
6
A2
OE
4
5
GND
VCCA
1
8
VCCB
A1
2
7
B1
A2
3
6
B2
GND
4
5
OE
DFN-1.4X1-8L
SOT-23-8
PIN DESCRIPTION
PIN
NAME
(1)
TYPE (1)
FUNCTION
SOT-23-8
DFN-1.4X1-8L
1
8
VCCB
P
2
7
B1
I/O
Input/output B1. Reference to VCCB.
3
6
B2
I/O
4
5
OE
I
5
4
GND
‒
Input/output B2. Reference to VCCB.
Output Enable (Active High). Pull OE low to place all
outputs in 3-state mode. Referenced to VCCA.
Ground.
6
3
A2
I/O
Input/output A2. Reference to VCCA.
7
2
A1
I/O
8
1
VCCA
P
Input/output A1. Reference to VCCA.
A Port Supply Voltage.1.65V ≤ VCCA ≤ 5.5V and VCCA ≤
VCCB.
B Ports Supply Voltage.2.3V ≤ VCCB ≤ 5.5V.
I=input, O=output, I/O=input and output, P=power
3 / 26
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RS0102
PIN CONFIGURATIONS
B2
1
8
B1
GND
2
7
VCCB
VCCA
3
6
OE
A2
4
5
A1
VSSOP-8/DFN2x3-8L
PIN DESCRIPTION
PIN
NAME
TYPE (1)
1
B2
I/O
2
GND
‒
Ground.
3
VCCA
P
A Port Supply Voltage.1.65V ≤ VCCA ≤ 5.5V and VCCA ≤ VCCB
4
A2
I/O
Input/output A2. Reference to VCCA.
5
A1
I/O
6
OE
I
7
VCCB
P
Input/output A1. Reference to VCCA.
Output Enable (Active High). Pull OE low to place all outputs in 3state mode. Referenced to VCCA.
B Ports Supply Voltage.2.3V ≤ VCCB ≤ 5.5V.
8
B1
I/O
FUNCTION
VSSOP-8/DFN2*3-8L
Input/output B2. Reference to VCCB.
Input/output B1. Reference to VCCB.
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RS0102
SPECIFICATIONS
Absolute Maximum Ratings
Over operating free-air temperature range (unless otherwise noted) (1)
SYMBOL
PARAMETER
MIN
MAX
UNIT
VCCA
Supply Voltage Range
-0.3
6.0
V
VCCB
Supply Voltage Range
-0.3
6.0
V
VI(2)
Input Voltage Range
A port
-0.3
6.0
B port
-0.3
6.0
VO(2)
Voltage range applied to any output in the highimpedance or power-off state
A port
-0.3
6.0
B port
-0.3
6.0
Voltage range applied to any output in the high or
low state
A port
-0.3
VCCA+0.3
B port
-0.3
VCCB+0.3
Input clamp current
VI
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