PCAL9555AHF,128 NXP Semiconductors, PCAL9555AHF,128 Datasheet - Page 46

• Manufacturer Part Number: PCAL9555AHF,128
• Description: Interface - I/O Expanders
• Manufacturer: NXP Semiconductors

Specifications of PCAL9555AHF,128

• Rohs: yes
• Maximum Operating Frequency: 100 kHz
• Operating Supply Voltage: 1.65 V to 5.5 V
• Operating Temperature Range: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• Package / Case: HWQFN-24
• Operating Current: 160 mA
• Output Current: 25 mA
• Power Dissipation: 200 mW
• Product Type: I/O Expanders

NXP Semiconductors
23. Contents
1
2
2.1
3
3.1
4
5
5.1
5.2
6
6.1
6.2
6.2.1
6.2.2
6.2.3
6.2.4
6.2.5
6.2.6
6.2.7
6.2.8
6.2.9
6.2.10
6.2.11
6.2.12
6.3
6.4
6.5
7
7.1
7.2
8
8.1
8.2
8.3
8.4
9
10
11
12
12.1
General description . . . . . . . . . . . . . . . . . . . . . . 1
Features and benefits . . . . . . . . . . . . . . . . . . . . 2
Ordering information . . . . . . . . . . . . . . . . . . . . . 3
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pinning information . . . . . . . . . . . . . . . . . . . . . . 4
Functional description . . . . . . . . . . . . . . . . . . . 5
Bus transactions . . . . . . . . . . . . . . . . . . . . . . . 14
Application design-in information . . . . . . . . . 20
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 25
Recommended operating conditions. . . . . . . 25
Thermal characteristics . . . . . . . . . . . . . . . . . 25
Static characteristics. . . . . . . . . . . . . . . . . . . . 26
Pointer register and command byte . . . . . . . . . 5
Input port register pair (00h, 01h) . . . . . . . . . . . 7
Output port register pair (02h, 03h) . . . . . . . . . 7
Polarity inversion register pair (04h, 05h) . . . . . 8
Configuration register pair (06h, 07h) . . . . . . . . 8
Output drive strength register pairs
Pull-up/pull-down enable register pair
Pull-up/pull-down selection register pair
Interrupt status register pair (4Ch, 4Dh) . . . . . 12
Output port configuration register (4Fh) . . . . . 12
Minimizing I
Device current consumption with internal
pull-up and pull-down resistors . . . . . . . . . . . . 24
Typical characteristics . . . . . . . . . . . . . . . . . . 28
Agile I/O features . . . . . . . . . . . . . . . . . . . . . . . 2
Ordering options . . . . . . . . . . . . . . . . . . . . . . . . 3
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4
Device address . . . . . . . . . . . . . . . . . . . . . . . . . 5
Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
(40h, 41h, 42h, 43h) . . . . . . . . . . . . . . . . . . . . . 9
Input latch register pair (44h, 45h) . . . . . . . . . . 9
(46h, 47h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
(48h, 49h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Interrupt mask register pair (4Ah, 4Bh). . . . . . 11
I/O port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Power-on reset . . . . . . . . . . . . . . . . . . . . . . . . 13
Interrupt output . . . . . . . . . . . . . . . . . . . . . . . . 14
Writing to the port registers. . . . . . . . . . . . . . . 14
Reading the port registers . . . . . . . . . . . . . . . 16
control LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Output drive strength control . . . . . . . . . . . . . 21
Power-on reset requirements . . . . . . . . . . . . . 22
DD
when the I/Os are used to
Low-voltage 16-bit GPIO with Agile I/O, interrupt and weak pull-up
13
14
15
16
17
17.1
17.2
17.3
17.4
18
19
20
21
21.1
21.2
21.3
21.4
22
23
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
© NXP B.V. 2012.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: [e-mail]
Dynamic characteristics. . . . . . . . . . . . . . . . . 32
Parameter measurement information . . . . . . 33
Package outline. . . . . . . . . . . . . . . . . . . . . . . . 36
Handling information . . . . . . . . . . . . . . . . . . . 38
Soldering of SMD packages . . . . . . . . . . . . . . 38
Soldering: PCB footprints . . . . . . . . . . . . . . . 41
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . 43
Revision history . . . . . . . . . . . . . . . . . . . . . . . 43
Legal information . . . . . . . . . . . . . . . . . . . . . . 44
Contact information . . . . . . . . . . . . . . . . . . . . 45
Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Introduction to soldering. . . . . . . . . . . . . . . . . 38
Wave and reflow soldering. . . . . . . . . . . . . . . 38
Wave soldering . . . . . . . . . . . . . . . . . . . . . . . 38
Reflow soldering . . . . . . . . . . . . . . . . . . . . . . 39
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 44
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 45
PCAL9555A
Document identifier: PCAL9555A
Date of release: 3 October 2012
All rights reserved.