Datasheet
PCA9544A All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 5 — 23 April 2014 28 of 31
NXP Semiconductors
PCA9544A
4-channel I
2
C-bus multiplexer with interrupt logic
17. Revision history
Table 14. Revision history
Document ID Release date Data sheet status Change notice Supersedes
PCA9544A v.5 20140423 Product data sheet - PCA9544A v.4
Modifications:
• Section 2 “Features and benefits”, 16th bullet item: deleted phrase “200 V MM per JESD22-A115”
• Table 1 “Ordering information”: added “Topside marking” column
• Table 2 “Ordering options”: added “Orderable part number”, “Packing method”, and “Minimum order
quantity” columns
• Table 4 “Control register: Write — channel selection; Read — channel status”: value for INT0,
command ‘channel 3 enabled’ corrected from “0” to “X” (correction to documentation only;
no change to device)
• Section 6.4 “Power-on reset”, first paragraph, third sentence: corrected from “V
DD
must be lowered
below 0.2 V to reset the device” to “In order to reset the device, V
DD
must be lowered below 0.2 V
for at least 5 s.” (correction to documentation only; no change to device)
• Table 6 “Limiting values”: added limiting value “T
j(max)
”
• Added (new) Section 10 “Thermal characteristics”
• Table 8 “Static characteristics at V
DD
= 2.3 V to 3.6 V”:
– Table note [2]
: inserted phrase “for at least 5 s”
– subsection “Select inputs A0 to A2, INT0
to INT3”: Max value for V
IH
corrected from
“V
DD
+ 0.5 V” to “6 V” (correction to documentation only; no change to device)
• Table 9 “Static characteristics at V
DD
= 4.5 V to 5.5 V”:
– Table note [2]
: inserted phrase “for at least 5 s”
– subsection “Select inputs A0 to A2, INT0 to INT3”: Max value for V
IH
corrected from
“V
DD
+ 0.5 V” to “6 V” (correction to documentation only; no change to device)
• Figure 15 “Definition of timing on the I
2
C-bus” updated (added 0.3 V
DD
and 0.7 V
DD
reference
lines)
• Added Section 15 “Soldering: PCB footprints”
PCA9544A v.4 20090615 Product data sheet - PCA9544A v.3
PCA9544A v.3 20081124 Product data sheet - PCA9544A v.2
PCA9544A v.2
(9397 750 13931)
20040929 Product data sheet - PCA9544A v.1
PCA9544A v.1
(9397 750 13301)
20040728 Objective data sheet - -