Rainbow Electronics MAX7315 User Manual
General Description
The MAX7315 I2C™-/SMBus-compatible serial interfaced
peripheral provides microprocessors with 8 I/O ports.
Each I/O port can be individually configured as either an
open-drain current-sinking output rated at 50mA at 5.5V,
or a logic input with transition detection. A ninth port can
be used for transition detection interrupt or as a generalpurpose output. The outputs are capable of directly driving LEDs, or providing logic outputs with external
resistive pullup up to 5.5V.
PWM current drive is integrated with 8 bits of control.
Four bits are global control and apply to all LED outputs
to provide coarse adjustment of current from fully off to
fully on in 14 intensity steps. Each output then has individual 4-bit control, which further divides the globally
set current into 16 more steps. Alternatively, the current
control can be configured as a single 8-bit control that
sets all outputs at once.
The MAX7315 is pin and software compatible with the
PCA9534 and PCA9554(A).
Each output has independent blink timing with two blink
phases. All LEDs can be individually set to be on or off
during either blink phase, or to ignore the blink control.
The blink period is controlled by a register.
The MAX7315 is controlled through the 2-wire I2C/SMBus
serial interface, and can be configured to one of 64 I2C
addresses.
Applications
Features
♦ 400kbps, 2-Wire Serial Interface, 5.5V Tolerant
♦ 2V to 3.6V Operation
♦ Overall 8-Bit PWM LED Intensity Control
Global 16-Step Intensity Control
Plus Individual 16-Step Intensity Control
♦ Automatic Two-Phase LED Blinking
♦ 50mA Maximum Port Output Current
♦ Outputs Are 5.5V-Rated Open Drain
♦ Inputs Are Overvoltage Protected to 5.5V
♦ Transition Detection with Interrupt Output
♦ Low Standby Current (1.2µA typ; 3.3µA max)
♦ Tiny 3mm x 3mm, Thin QFN Package
♦ -40°C to +125°C Temperature Range
♦ All Ports Can Be Configured as Inputs or Outputs
MAX7315
8-Port I/O Expander with LED Intensity
Control and Interrupt
________________________________________________________________ Maxim Integrated Products 1
Pin Configurations
MAX7315
P5
P0
P1
P2
P3
V+
3.3V
µC
SDA
SCL
SDA
I/O
AD0
5V 3.3V
P6
P7
SCL
P4
OUTPUT2
OUTPUT1
GND
5V
INPUT 1
INPUT 2
AD2
AD1
0.047µF
INT/O8
Typical Application Circuit
19-3056; Rev 0; 10/03
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Ordering Information
Pin Configurations continued at end of data sheet.
LCD Backlights
LED Status Indication
Portable Equipment
Laptop Computers
Keypad Backlights
RGB LED Drivers
Cellular Phones
Purchase of I2C components of Maxim Integrated Products, Inc.,
or one of its sublicensed Associated Companies, conveys a
license under the Philips I
2
C Patent Rights to use these compo-
nents in an I
2
C system, provided that the system conforms to the
I
2
C Standard Specification as defined by Philips.
PART TEMP RANGE PIN-PACKAGE
MAX7315ATE -40°C to +125°C
MAX7315AEE -40°C to +125°C 16 QSOP —
MAX7315AUE -40°C to +125°C 16 TSSOP —
16 Thin QFN
3mm x 3mm x
0.8mm
TOP
MARK
AAU
TOP VIEW
AD2
1
2
P0
3
P1
4
P2
AD0
V+
GND
SDA
12
SCL
11
INT/O8
P7
10
P6
9
P4
P5
AD1
16 15 14 13
MAX7315ATE
5678
P3
QFN
MAX7315
8-Port I/O Expander with LED Intensity
Control and Interrupt
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Voltage (with respect to GND)
V+ .............................................................................-0.3V to +4V
SCL, SDA, AD0, AD1, AD2, P0–P7 ..........................-0.3V to +6V
INT/O8 .....................................................................-0.3V to +8V
DC Current on P0–P7, INT/O8 ............................................55mA
DC Current on SDA.............................................................10mA
Maximum GND Current ....................................................190mA
Continuous Power Dissipation (T
A
= +70°C)
16-Pin TSSOP (derate 9.4mW/°C over +70°C) ............754mW
16-Pin QSOP (derate 8.3mW/°C over +70°C)..............666mW
16-Pin QFN (derate 14.7mW/°C over +70°C) ............1176mW
Operating Temperature Range (T
MIN
to T
MAX
)-40°C to +125°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
ELECTRICAL CHARACTERISTICS
(Typical Operating Circuit, V+ = 2V to 3.6V, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V+ = 3.3V, TA = +25°C.)
(Note 1)
Operating Supply Voltage V+ 2 3.6 V
Output Load External Supply
Voltage
Standby Current
(Interface Idle, PWM Disabled)
Supply Current
(Interface Idle, PWM Enabled)
Supply Current
(Interface Running, PWM
Disabled)
Supply Current
(Interface Running, PWM
Enabled)
Input High Voltage
SDA, SCL, AD0, AD1, AD2,
P0–P7
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
V
EXT
S C L and S D A at V + ; other
I
d i g i tal i np uts at V + or GN D ;
+
P WM i ntensi ty contr ol d i sab l ed
S C L and S D A at V + ; other
I
d i g i tal i np uts at V + or GN D ;
+
P WM i ntensi ty contr ol enab l ed
f
I
inputs at V+ or GND; PWM
+
intensity control disabled
f
I
inputs at V+ or GND; PWM
+
intensity control enabled
V
IH
= 400kHz; other digital
SCL
= 400kHz; other digital
SCL
TA = +25°C 1.2 2.3
TA = -40°C to +85°C 2.6
T
= T
= T
= T
= T
MIN
MIN
MIN
MIN
to T
to T
to T
to T
MAX
MAX
MAX
MAX
A
TA = +25°C 7 12.1
TA = -40°C to +85°C 13.5
T
A
TA = +25°C4076
TA = -40°C to +85°C78
T
A
TA = +25°C 51 110
TA = -40°C to +85°C 117
T
A
0 5.5 V
0.7 ✕
V+
3.3
14.4
80
122
µA
µA
µA
µA
V
Input Low Voltage
SDA, SCL, AD0, AD1, AD2,
P0–P7
Input Leakage Current
SDA, SCL, AD0, AD1, AD2,
P0–P7
Input Capacitance
SDA, SCL, AD0, AD1, AD2,
P0–P7
V
IL
I
, IIL0 ≤ input voltage ≤ 5.5V -0.2 +0.2 µA
IH
0.3 ✕
V+
8pF
V
MAX7315
8-Port I/O Expander with LED Intensity
Control and Interrupt
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(Typical Operating Circuit, V+ = 2V to 3.6V, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V+ = 3.3V, TA= + 25°C.)
(Note 1)
TIMING CHARACTERISTICS
(Typical Operating Circuit, V+ = 2V to 3.6V, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V+ = 3.3V, TA = +25°C.)
(Note 1)
Output Low Voltage
P0–P7, INT/O8
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
OL
V+ = 2.5V, I
V
V+ = 3.3V, I
Output Low-Voltage SDA V
PWM Clock Frequency f
OLSDAISINK
PWM
= 20mA
SINK
= 20mA
SINK
= 20mA
SINK
= 6mA 0.4 V
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Serial Clock Frequency f
Bus Free Time Between a STOP and a START
Condition
Hold Time, Repeated START Condition t
Repeated START Condition Setup Time t
STOP Condition Setup Time t
Data Hold Time t
Data Setup Time t
SCL Clock Low Period t
SCL Clock High Period t
Rise Time of Both SDA and SCL Signals, Receiving t
Fall Time of Both SDA and SCL Signals, Receiving t
Fall Time of SDA Transmitting t
Pulse Width of Spike Suppressed t
Capacitive Load for Each Bus Line C
SCL
t
BUF
HD, STA
SU, STA
SU, STO
HD, DAT
SU, DAT
LOW
HIGH
F.TX
(Note 2) 0.9 µs
(Notes 3, 4)
R
(Notes 3, 4)
F
(Notes 3, 5)
(Note 6) 50 ns
SP
(Note 3) 400 pF
b
TA = +25°C 0.15 0.25
TA = -40°C to +85°C 0.29V+ = 2V, I
T
= T
MIN
to T
MAX
A
0.31
TA = +25°C 0.13 0.22
TA = -40°C to +85°C 0.25
= T
MIN
to T
MAX
T
A
0.27
TA = +25°C 0.12 0.22
TA = -40°C to +85°C 0.23
= T
MIN
to T
MAX
T
A
0.25
32 kHz
400 kHz
1.3 µs
0.6 µs
0.6 µs
0.6 µs
180 ns
1.3 µs
0.7 µs
200 +
0.1C
200 +
0.1C
200 +
0.1C
300 ns
b
300 ns
b
250 ns
b
V
MAX7315
8-Port I/O Expander with LED Intensity
Control and Interrupt
4 _______________________________________________________________________________________
TIMING CHARACTERISTICS (continued)
(Typical Operating Circuit, V+ = 2V to 3.6V, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V+ = 3.3V, TA = +25°C.)
(Note 1)
Note 1: All parameters tested at TA= +25°C. Specifications over temperature are guaranteed by design.
Note 2: A master device must provide a hold time of at least 300ns for the SDA signal (referred to V
IL
of the SCL signal) to bridge
the undefined region of SCL’s falling edge.
Note 3: Guaranteed by design.
Note 4: C
b
= total capacitance of one bus line in pF. tRand tFmeasured between 0.3 x VDDand 0.7 x VDD.
Note 5: I
SINK
≤ 6mA. Cb= total capacitance of one bus line in pF. tRand tFmeasured between 0.3 x VDDand 0.7 x VDD.
Note 6: Input filters on the SDA and SCL inputs suppress noise spikes less than 50ns.
STANDBY CURRENT vs. TEMPERATURE
MAX7315 toc01
TEMPERATURE (°C)
STANDBY CURRENT (µA)
1109565 80-10 5 20 35 50-25
1
2
3
4
5
6
7
8
9
10
0
-40 125
V+ = 3.6V
PWM ENABLED
V+ = 2.7V
PWM ENABLED
V+ = 2V
PWM DISABLED
V+ = 2.7V
PWM DISABLED
V+ = 3.6V
PWM
DISABLED
V+ = 2V
PWM ENABLED
SUPPLY CURRENT vs. TEMPERATURE
(PWM DISABLED; f
SCL
= 400kHz)
MAX7315 toc02
TEMPERATURE (°C)
SUPPLY CURRENT (µA)
1109565 80-10 5 20 35 50-25
10
20
30
40
50
60
70
0
-40 125
V+ = 3.6V
V+ = 2.7V
V+ = 2V
5
10
15
20
25
30
35
40
45
50
55
60
65
70
0
SUPPLY CURRENT vs. TEMPERATURE
(PWM ENABLED; f
SCL
= 400kHz)
MAX7315 toc03
TEMPERATURE (°C)
SUPPLY CURRENT (µA)
1109565 80-10 5 20 35 50-25-40 125
V+ = 3.6V
V+ = 2.7V
V+ = 2V
__________________________________________Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Interrupt Valid t
Interrupt Reset t
Output Data Valid t
Input Data Step Time t
Input Data Hold Time t
Figure 10 6.5 µs
IV
Figure 10 1 µs
IR
Figure 10 5 µs
DV
Figure 10 100 ns
DS
Figure 10 1 µs
DH
MAX7315
8-Port I/O Expander with LED Intensity
Control and Interrupt
_______________________________________________________________________________________ 5
1
2
Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted.)
PORT OUTPUT LOW VOLTAGE WITH 50mA
LOAD CURRENT vs. TEMPERATURE
0.6
(V)
0.5
OL
V+ = 2V
0.4
0.3
0.2
0.1
PORT OUTPUT LOW VOLTAGE V
0
SCOPE SHOT OF 2 OUTPUT PORTS
MASTER INTENSITY SET TO 1/15
OUTPUT 1 INDIVIDUAL INTENSITY
SET TO 1/16
OUTPUT 2 INDIVIDUAL INTENSITY
SET TO 15/16
V+ = 2.7V
V+ = 3.6V
1109565 80-10 5 20 35 50-25-40 125
TEMPERATURE (°C)
MAX7315 toc07
2ms/div
PORT OUTPUT LOW VOLTAGE WITH 20mA
LOAD CURRENT vs. TEMPERATURE
0.6
ALL OUTPUTS LOADED
(V)
0.5
MAX7315 toc04
OL
0.4
0.3
0.2
0.1
PORT OUTPUT LOW VOLTAGE V
0
-40 125
SCOPE SHOT OF 2 OUTPUT PORTS
MASTER INTENSITY SET TO 14/15
OUTPUT
2V/div
OUTPUT 1 INDIVIDUAL INTENSITY
SET TO 1/16
OUTPUT
2V/div
OUTPUT 2 INDIVIDUAL INTENSITY
SET TO 14/15
V+ = 2V
V+ = 2.7V
TEMPERATURE (°C)
2ms/div
V+ = 3.6V
MAX7315 toc08
1109580655035205-10-25
MAX7315 toc05
OUTPUT 1,
2V/div
OUTPUT 2,
2V/div
1.050
1.025
1.000
0.975
0.950
PWM CLOCK FREQUENCY
0.925
0.900
0.35
0.30
0.25
0.20
(V)
OL
V
0.15
0.10
0.05
PWM CLOCK FREQUENCY
vs. TEMPERATURE
V+ = 3.6V
V+ = 2.7V
NORMALIZED TO V+ = 3.3V, TA = +25°C
-40 125
TEMPERATURE (°C)
SINK CURRENT vs. V
V+ = 2V
V+ = 2.7V
V+ = 3.3V
0
0
ONLY ONE OUTPUT LOADED
SINK CURRENT (mA)
MAX7315 toc06
V+ = 2V
1109580655035205-10-25
OL
MAX7315 toc09
V+ = 3.6V
5040302010
MAX7315
Functional Overview
The MAX7315 is a general-purpose input/output (GPIO)
peripheral that provides eight I/O ports, P0–P7, controlled through an I2C-compatible serial interface. A 9th
output-only port, INT/O8, can be configured as an interrupt output or as a general-purpose output port. All output ports sink loads up to 50mA connected to external
supplies up to 5.5V, independent of the MAX7315’s
supply voltage. The MAX7315 is rated for a ground current of 190mA, allowing all nine outputs to sink 20mA at
the same time. Figure 1 shows the output structure of
the MAX7315. The ports default to inputs on power-up.
Port Inputs and Transition Detection
An input ports register reflects the incoming logic levels
of the port pins, regardless of whether the pin is
defined as an input or an output. Reading the input
8-Port I/O Expander with LED Intensity
Control and Interrupt
6 _______________________________________________________________________________________
Pin Description
Figure 1. Simplified Schematic of I/O Ports
PIN
QSOP/TSSOP QFN
1, 2, 3 15, 16, 1
4–7, 9–12 2–5, 7–10 P0–P7 Input/Output Ports. P0–P7 are open-drain I/Os rated at 5.5V, 50mA.
8 6 GND Ground. Do not sink more than 190mA into the GND pin.
13 11 INT/O8
14 12 SCL I2C-Compatible Serial Clock Input
15 13 SDA I2C-Compatible Serial Data I/O
16 14 V+
— PAD Exposed pad Exposed Pad on Package Underside. Connect to GND.
DATA FROM
SHIFT REGISTER
DATA FROM
SHIFT REGISTER
WRITE
CONFIGURATION
PULSE
WRITE PULSE
NAME FUNCTION
AD0, AD1,
AD2
Address Inputs. Sets device slave address. Connect to either GND, V+,
SCL, or SDA to give 64 logic combinations. See Table 1.
Output Port. Open-drain output rated at 7.0V, 50mA. Configurable as
interrupt output or general-purpose output.
Positive Supply Voltage. Bypass V+ to GND with a 0.047µF ceramic
capacitor
CONFIGURATION
REGISTER
D
Q
FF
C
Q
K
OUTPUT
PORT
REGISTER
D
FF
C
K
Q
Q
OUTPUT PORT
REGISTER DATA
I/O PIN
Q2
READ PULSE
INPUT PORT
REGISTER
D
Q
FF
C
Q
K
GND
INPUT PORT
REGISTER DATA
TO INT
ports register latches the current-input logic level of the
affected eight ports. Transition detection allows all
ports configured as inputs to be monitored for changes
in their logic status. The action of reading the input
ports register samples the corresponding 8 port bits’
input condition. This sample is continuously compared
with the actual input conditions. A detected change in
input condition causes the INT/O8 interrupt output to go
low, if configured as an interrupt output. The interrupt is
cleared either automatically if the changed input
returns to its original state, or when the input ports register is read.
The INT/O8 pin can be configured as either an interrupt
output or as a 9th output port with the same static or
blink controls as the other eight ports (Table 4).
Port Output Control and LED Blinking
The blink phase 0 register sets the output logic levels of
the eight ports P0–P7 (Table 8). This register controls
the port outputs if the blink function is disabled. A
duplicate register, the blink phase 1 register, is also
used if the blink function is enabled (Table 9). In blink
mode, the port outputs can be flipped between using
the blink phase 0 register and the blink phase 1 register using software control (the blink flip flag in the configuration register) (Table 4).
PWM Intensity Control
The MAX7315 includes an internal oscillator, nominally
32kHz, to generate PWM timing for LED intensity control. PWM intensity control can be enabled on an output-by-output basis, allowing the MAX7315 to provide
any mix of PWM LED drives and glitch-free logic outputs (Table 10). PWM can be disabled entirely, in
which case all output ports are static and the MAX7315
operating current is lowest because the internal oscillator is turned off.
PWM intensity control uses a 4-bit master control and 4
bits of individual control per output (Tables 13, 14). The
4-bit master control provides 16 levels of overall intensity control, which applies to all PWM-enabled output
ports. The master control sets the maximum pulse
width from 1/15 to 15/15 of the PWM time period. The
individual settings comprise a 4-bit number further
reducing the duty cycle to be from 1/16 to 15/16 of the
time window set by the master control.
For applications requiring the same PWM setting for all
output ports, a single global PWM control can be used
instead of all the individual controls to simplify the control software and provide 240 steps of intensity control
(Tables 10 and 13).
Standby Mode
When the serial interface is idle and the PWM intensity
control is unused, the MAX7315 automatically enters
standby mode. If the PWM intensity control is used, the
operating current is slightly higher because the internal
PWM oscillator is running. When the serial interface is
active, the operating current also increases because
the MAX7315, like all I2C slaves, has to monitor every
transmission.
Serial Interface
Serial Addressing
The MAX7315 operates as a slave that sends and
receives data through an I2C-compatible 2-wire interface. The interface uses a serial data line (SDA) and a
serial clock line (SCL) to achieve bidirectional communication between master(s) and slave(s). A master (typically a microcontroller) initiates all data transfers to and
from the MAX7315 and generates the SCL clock that
synchronizes the data transfer (Figure 2).
The MAX7315 SDA line operates as both an input and
an open-drain output. A pullup resistor, typically 4.7kΩ,
is required on SDA. The MAX7315 SCL line operates
MAX7315
8-Port I/O Expander with LED Intensity
Control and Interrupt
_______________________________________________________________________________________ 7
Figure 2. 2-Wire Serial Interface Timing Details
SDA
t
SU,DAT
t
LOW
SCL
t
HD,STA
START CONDITION
t
HIGH
t
t
R
F
t
HD,DAT
t
SU,STA
REPEATED START CONDITION
t
HD,STA
t
SU,STO
STOP
CONDITION
t
BUF
START
CONDITION
MAX7315
only as an input. A pullup resistor, typically 4.7kΩ, is
required on SCL if there are multiple masters on the 2wire interface, or if the master in a single-master system
has an open-drain SCL output.
Each transmission consists of a START condition
(Figure 3) sent by a master, followed by the MAX7315
7-bit slave address plus R/W bit, a register address
byte, one or more data bytes, and finally a STOP condition (Figure 3).
Start and Stop Conditions
Both SCL and SDA remain high when the interface is
not busy. A master signals the beginning of a transmission with a START (S) condition by transitioning SDA
from high to low while SCL is high. When the master
has finished communicating with the slave, it issues a
STOP (P) condition by transitioning SDA from low to
high while SCL is high. The bus is then free for another
transmission (Figure 3).
Bit Transfer
One data bit is transferred during each clock pulse.
The data on SDA must remain stable while SCL is high
(Figure 4).
Acknowledge
The acknowledge bit is a clocked 9th bit that the recipient uses to handshake receipt of each byte of data
(Figure 5). Thus, each byte transferred effectively
requires 9 bits. The master generates the 9th clock
pulse, and the recipient pulls down SDA during the
acknowledge clock pulse so the SDA line is stable low
during the high period of the clock pulse. When the
master is transmitting to the MAX7315, the device generates the acknowledge bit because the MAX7315 is
the recipient. When the MAX7315 is transmitting to the
master, the master generates the acknowledge bit
because the master is the recipient.
Slave Address
The MAX7315 has a 7-bit long slave address (Figure 6).
The eighth bit following the 7-bit slave address is the
R/W bit. The R/W bit is low for a write command, high
for a read command.
The slave address bits A6 through A0 are selected by
the address inputs AD0, AD1, and AD2. These pins can
be connected to GND, V+, SDA, or SCL. The MAX7315
has 64 possible slave addresses (Table 1) and, therefore, a maximum of 64 MAX7315 devices can be controlled independently from the same interface.
Message Format for Writing the MAX7315
A write to the MAX7315 comprises the transmission of
the MAX7315’s slave address with the R/W bit set to
zero, followed by at least 1 byte of information. The first
byte of information is the command byte. The command
byte determines which register of the MAX7315 is to be
written to by the next byte, if received (Table 2). If a
STOP condition is detected after the command byte is
received, then the MAX7315 takes no further action
beyond storing the command byte.
8-Port I/O Expander with LED Intensity
Control and Interrupt
8 _______________________________________________________________________________________
Figure 3. Start and Stop Conditions
Figure 4. Bit Transfer
Figure 5. Acknowledge
Figure 6. Slave Address
SDA
SCL
SP
START
CONDITION
SDA
SCL
DATA LINE STABLE;
DATA VALID
START
CONDITION
SCL
SDA BY
TRANSMITTER
SDA BY
RECEIVER
S
CHANGE OF DATA
ALLOWED
CLOCK PULSE
FOR ACKNOWLEDGE
12 89
STOP
CONDITION
SDA
MSB
SCL
A5
LSB
ACKA4 A1A6 A3 A0A2 R/W
MAX7315
8-Port I/O Expander with LED Intensity
Control and Interrupt
_______________________________________________________________________________________ 9
Table 1. MAX7315 I2C Slave Address Map
PIN AD2 PIN AD1 PIN AD0
A6 A5 A4 A3 A2 A1 A0
GND SCL GND0010000
GND SCL V+ 0010001
GNDSDAGND0010010
GNDSDA V+ 0010011
V+ SCL GND0010100
V+ SCL V+ 0010101
V+ SDAGND0010110
V+ SDA V+ 0010111
GND SCL SCL0011000
GND SCL SDA 0011001
GNDSDA SCL 0011010
GNDSDA SDA0011011
V+ SCL SCL 0011100
V+ SCL SDA0011101
V+ SDA SCL 0011110
V+ SDA SDA0011111
GNDGNDGND0100000
GNDGND V+ 0100001
GND V+ GND0100010
GND V+ V+ 0100011
V+ GNDGND0100100
V+ GND V+ 0100101
V+ V+ GND0100110
V+ V+ V+ 0100111
DEVICE ADDRESS
GNDGND SCL 0101000
GNDGNDSDA0101001
GND V+ SCL 0101010
GND V+ SDA0101011
V+ GND SCL 0101100
V+ GNDSDA0101101
V+ V+ SCL 0101110
V+ V+ SDA0101111
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