PCA9530D-T NXP Semiconductors, PCA9530D-T Datasheet - Page 7

• Manufacturer Part Number: PCA9530D-T
• Description: LED Drivers 2-BIT I2C FM OD LED DIM RST
• Manufacturer: NXP Semiconductors

Specifications of PCA9530D-T

• Number Of Segments: 2
• Low Level Output Current: 25000 uA (Min)
• Operating Supply Voltage: 2.3 V to 5.5 V
• Maximum Supply Current: 500 uA
• Maximum Power Dissipation: 400 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SO
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: PCA9530D,118

NXP Semiconductors
7. Characteristics of the I
PCA9530_3
Product data sheet
7.1.1 START and STOP conditions
6.6 External RESET
7.1 Bit transfer
A reset can be accomplished by holding the RESET pin LOW for a minimum of t
PCA9530 registers and I
RESET input is once again HIGH.
This input requires a pull-up resistor to V
The I
lines are a serial data line (SDA) and a serial clock line (SCL). Both lines must be
connected to a positive supply via a pull-up resistor when connected to the output stages
of a device. Data transfer may be initiated only when the bus is not busy.
One data bit is transferred during each clock pulse. The data on the SDA line must remain
stable during the HIGH period of the clock pulse as changes in the data line at this time
will be interpreted as control signals (see
Both data and clock lines remain HIGH when the bus is not busy. A HIGH-to-LOW
transition of the data line while the clock is HIGH is defined as the START condition (S). A
LOW-to-HIGH transition of the data line while the clock is HIGH is defined as the STOP
condition (P) (see
Fig 6.
Fig 7.
2
C-bus is for 2-way, 2-line communication between different ICs or modules. The two
SDA
SCL
Bit transfer
Definition of START and STOP conditions
START condition
2
SDA
SCL
Figure
C-bus
Rev. 03 — 26 February 2009
S
2
7).
C-bus state machine will be held in their default states until the
data valid
data line
stable;
DD
Figure
if no active connection is used.
allowed
change
of data
6).
2-bit I
STOP condition
mba607
2
C-bus LED dimmer
PCA9530
P
© NXP B.V. 2009. All rights reserved.
mba608
w(rst)
. The
7 of 24