DS3514T+TR MAXIM [Maxim Integrated Products], DS3514T+TR Datasheet - Page 19

• Manufacturer Part Number: DS3514T+TR
• Description: I2C Gamma and VCOM Buffer with EEPROM
• Manufacturer: MAXIM [Maxim Integrated Products]

To achieve the best results when using the DS3514,
decouple all the power-supply pins (V
a 0.01µF or 0.1µF capacitor. Use a high-quality ceramic
surface-mount capacitor if possible. Surface-mount
components minimize lead inductance, which improves
performance, and ceramic capacitors tend to have
adequate high-frequency response for decoupling
applications.
Figure 6. I
A)
B)
C)
D)
E)
TYPICAL I
EXAMPLE I
START
SINGLE-BYTE WRITE
-WRITE LATCH A
SINGLE-BYTE READ
-READ LATCH A GM2
SINGLE-BYTE WRITE
-ENTER STANDBY MODE
TWO-BYTE WRITE
- WRITE 10h AND 11h TO 80h
TWO-BYTE READ
- READ 10h AND 11h
GM8 TO 00h
2
C WRITE TRANSACTION
2
MSB
C TRANSACTIONS (WHEN A0 IS CONNECTED TO GND).
1
2
C Communication Examples
I
1
2
Applications Information
0
C Gamma and V
ADDRESS*
SLAVE
______________________________________________________________________________________
0
0
Power-Supply Decoupling
START
START
START 1 1 0 0 0 0 0 0
START 1 1 0 0 0 0 0 0
START 1 1 0 0 0 0 0 0
0
1 1 0 0 0 0 0 0
1 1 0 0 0 0 0 0
A0
C0h
C0h
C0h
C0h
C0h
WRITE
READ/
LSB
R/W
SLAVE
ACK
SLAVE
SLAVE
SLAVE
SLAVE
SLAVE
ACK
ACK
ACK
ACK
ACK
CC
MSB
b7
and V
0 0 0 0 1 0 0 0
0 0 0 0 0 0 1 0
0 1 0 0 0 0 0 1
0 0 0 1 0 0 0 0
0 0 0 1 0 0 0 0
b6
08h
02h
41h
10h
10h
DD
b5
REGISTER ADDRESS
*THE SLAVE ADDRESS IS DETERMINED BY ADDRESS PIN A0.
) with
b4
SLAVE
SLAVE
SLAVE
SLAVE
SLAVE
ACK
ACK
ACK
ACK
ACK
b3
COM
1 0 0 0 0 0 0 0
1 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
REPEATED
REPEATED
b2
START
START
OOh
80h
80h
SDA is an I/O with an open-collector output that
requires a pullup resistor to realize high-logic levels. A
master using either an open-collector output with a
pullup resistor or a push-pull output driver can be used
for SCL. Pullup resistor values should be chosen to
ensure that the rise and fall times listed in the I
Electrical Characteristics are within specification. A typ-
ical value for the pullup resistors is 4.7kΩ.
b1
LSB
1 1 0 0 0 0 0 1
b0
1 1 0 0 0 0 0 1
SLAVE
SLAVE
SLAVE
ACK
ACK
ACK
C1h
C1h
Buffer with EEPROM
SLAVE
ACK
STOP
1 0 0 0 0 0 0 0
STOP
MSB
b7
SLAVE
80h
ACK
SLAVE
ACK
b6
SDA and SCL Pullup Resistors
I/O STATUS
b5
DATA
SLAVE
ACK
DATA
b4
DATA
b3
STOP
MASTER
NACK
MASTER
b2
ACK
b1
STOP
LSB
b0
DATA
SLAVE
ACK
MASTER
NACK
STOP
STOP
2
19
C