PCA9506BS,118 NXP Semiconductors, PCA9506BS,118 Datasheet - Page 18

• Manufacturer Part Number: PCA9506BS,118
• Description: IC I/O EXPANDER I2C 40B 56HVQFN
• Manufacturer: NXP Semiconductors

Specifications of PCA9506BS,118

• Package / Case: 56-VQFN Exposed Pad, 56-HVQFN, 56-SQFN, 56-DHVQFN
• Interface: I²C
• Number Of I /o: 40
• Interrupt Output: Yes
• Frequency - Clock: 400kHz
• Voltage - Supply: 2.3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Includes: POR
• Logic Family: PCA
• Number Of Lines (input / Output): 47 / 41
• Operating Supply Voltage: 2.3 V to 5.5 V
• Power Dissipation: 500 mW
• Operating Temperature Range: - 40 C to + 85 C
• Logic Type: I/O Expander
• Mounting Style: SMD/SMT
• Number Of Input Lines: 47
• Number Of Output Lines: 41
• Output Current: 15 mA
• Output Voltage: 4 V
• Operating Temperature (min): -40C
• Operating Temperature Classification: Industrial
• Operating Temperature (max): 85C
• Rad Hardened: No
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 568-3636-2; 935281575118; PCA9506BS-T

Fig 14. Read from Input Port, Output Port, I/O Configuration, Polarity Inversion or Mask Interrupt registers
If AI = 0, the same register is read during the whole sequence.
If AI = 1, the register value is incremented after each read. When the last register bank is read, it rolls over to the first byte of the category (see category definition in
Section 7.2 “Command
The INT signal is released only when the last register containing an input that changed has been read. For example, when IO2_4 and IO4_7 change at the same time and
an Input Port register’s read sequence is initiated, starting with IP0, INT is released after IP4 is read (and not after IP2 is read).
SDA
S
START condition
0 1 0 0
register determined by D[5:0]
slave address
data from register
first byte
DATA
register”).
A2 A1 A0
acknowledge
from slave
R/W
0
A
A
acknowledge from master
1 0 D5 D4 D3 D2 D1 D0
AI = 1
command register
data from register
second byte
DATA
D[5:0] = 00 0000 for Input Port register bank 0
D[5:0] = 00 1000 for Output Port register bank 0
D[5:0] = 01 0000 for Polarity Inversion register bank 0
D[5:0] = 01 1000 for Configuration register bank 0
D[5:0] = 10 0000 for Mask Interrupt register bank 0
A
acknowledge from slave
acknowledge from master
A
Sr
repeated START condition
0 1 0 0
slave address
A2 A1 A0
R/W
1
data from register
A
acknowledge from slave
At this moment master-transmitter becomes master-receiver,
and slave-receiver becomes slave-transmitter.
last byte
DATA
(cont.)
no acknowledge from master
A
P
STOP
condition
002aab499