PCA9670PW,112 NXP Semiconductors, PCA9670PW,112 Datasheet - Page 10

• Manufacturer Part Number: PCA9670PW,112
• Description: IC I/O EXPANDER I2C 8B 16TSSOP
• Manufacturer: NXP Semiconductors

Specifications of PCA9670PW,112

• Interface: I²C
• Number Of I /o: 8
• Interrupt Output: No
• Frequency - Clock: 1MHz
• Voltage - Supply: 2.3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP
• Includes: POR
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 568-4189-5; 935282716112; PCA9670PW

NXP Semiconductors
PCA9670_2
Product data sheet
Fig 10. PCA9670 ID
Fig 11. Device ID field reading
S
START condition
manufacturer name
Remark: If the master continues to ACK the bytes after the third byte, the PCA9670
rolls back to the first byte and keeps sending the Device ID sequence until a NACK
has been detected.
For the PCA9670, the Device ID is as shown in
M7
= 00000000
1
If more than 2 bytes are read, the slave device loops back to the first byte (manufacturer byte)
and keeps sending data until the master generates a ‘no acknowledge’.
M6 M5 M4
device ID address
1
1
part identification
1
M3
1
M2 M1 M0
0
Rev. 02 — 17 July 2007
0
R/W
0
0
A
A
acknowledge from one
or several slave(s)
acknowledge
from master
0
category identification
C6
A6
Remote 8-bit I/O expander for Fm+ I
the device to be identified
I
2
category identification
C-bus slave address of
manufacturer
A5 A4 A3 A2 A1 A0 X
C5 C4 C3
0
= 0000001
0
0
C2
0
0
C1 C0 F5
don't care
0
1
Figure
feature identification
0
0
acknowledge from
slave to be identified
A
A
acknowledge
from master
= 010011
feature identification
0
1
revision
F4
1
10.
P3 P2 P1
device ID address
1
0
0
1
0
0
0
1
slave to be identified
002aac264
0
1
0
P0 R2 R1 R0
PCA9670
1
acknowledge from
© NXP B.V. 2007. All rights reserved.
2
revision = 000
C-bus with reset
no acknowledge
0
0
1
0
from master
0
R/W
1
condition
002aac267
STOP
A
A
10 of 28
P