Datasheet
PCA9670 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
Product data sheet Rev. 3 — 30 May 2013 31 of 35
NXP Semiconductors
PCA9670
Remote 8-bit I/O expander for Fm+ I
2
C-bus with reset
19. Abbreviations
20. Revision history
Table 12. Abbreviations
Acronym Description
CDM Charged-Device Model
CMOS Complementary Metal-Oxide Semiconductor
ESD ElectroStatic Discharge
GPIO General Purpose Input/Output
HBM Human Body Model
LED Light Emitting Diode
IC Integrated Circuit
I
2
C-bus Inter IC bus
ID Identification
LSB Least Significant Bit
MSB Most Significant Bit
PLC Programmable Logic Controller
RAID Redundant Array of Independent Disks
Table 13. Revision history
Document ID Release date Data sheet status Change notice Supersedes
PCA9670 v.3 20130530 Product data sheet - PCA9670 v.2
Modifications:
• Section 1 “General description” re-written
• Section 2 “Features and benefits” re-written
• Section 3 “Applications”:
– Added (new) third bullet, “Keypads”
– Added (new) eighth bullet, “Mobile devices”
• Added Section 4.1 “Ordering options”
• Figure 2 “Simplified schematic diagram of P0 to P7” modified: removed diode between “V
DD
” and “P0
to P7”; removed exclusive-OR gate and signal “to interrupt logic”
• Section 7.1 “Device address”: re-written
• Table 4 “PCA9670 address map” updated: added separate columns for “Write” and “Read” under
“Address byte value” column; added (new) column “7-bit hexadecimal address without R/W
”
• Section 7.2.1 “Software Reset”: added paragraph that follows Figure 9
• Section 7.2.2 “Device ID (PCA9670 ID field)”:
– first bullet item following first paragraph changed from “8 bits with the manufacturer name” to
“12 bits with the manufacturer name”
– second bullet item re-written
– List item 6. on page 9
changed from “starting with the 8 manufacturer bits ... , followed by the 13
part identification bits” to “starting with the 12 manufacturer bits ... , followed by the 9 part
identification bits”
– Figure 10 “PCA9670 Device ID field” modified
– Figure 11
modified: added “Sr” bit
– added paragraph that follows Figure 11