CAP1088 datasheet(71/72 Pages) SMSC

71 / 72 page

8 Channel Capacitive Touch Sensor with 8 LED Drivers

Datasheet

SMSC CAP1088

Revision 1.1 (08-05-09)

DATASHEET

Section 6.2, "Package

Marking"

Updated package markings per new standards

Rev. 1.0 (06-16-09)

Document title modified;

reel size added to ordering information;

updates to pinout, general description and register set.

Chapter 1, Pin Description

Pin tables modified adding SPI to “ALERT# /

BC_IRQ#” pin

Updated pin description for WAKE/SPI_MOSI pin

to identify that it can be an input during Deep

Sleep.

Table 2.1, "Absolute

Maximum Ratings"

Table and notes following table modified

Section 3.1,

"Communications"

Updated paragraph to describe proper

ADDR_COMM pin function

Table 3.1, "ADDR_COMM

Pin Decode"

“/I2C” added “SMBus” in “Protocol Used” column

Figure 3.1, "SPI Timing"

Updated figure

Section 3.7, "BC-Link

Interface"

Removed “8051” from 2nd paragraph

Chapter 4, General

Description

Second to last paragraph removed, not needed as

clarification follows

Section 4.1, "Power States"

Removed mention of LED driver outputs

Figure 4.1, "System

Diagram for CAP1088"

Updated system diagram for proper ADDR_COMM

pin usage. Changed from pull-up to VDD to pull-

down to GND

Section 4.2, "RESET Pin"

Modified to indicate all communication buses

Section 4.3,

"WAKE/SPI_MOSI Pin

Operation"

Updated text for wake pin during Deep Sleep

Section 4.4, "LED Drivers"

“Pulse 1” modified

Section 4.4, "LED Drivers"

Updated text for # of LEDs

Table 5.1, "Register Set in

Hexadecimal Order"

Updated text and register descriptions for incorrect

#’s Cap Sense channels

Rev. 0.56 (5/1/09)

General

Fixed typos and updated text as necessary.

Cleaned up system diagrams

Rev. 0.54 (4/24/09)

Figure 4.1, "System

Diagram for CAP1088"

Updated figures for pin names

Section 5.5, "Sensitivity

Control Register"

Renamed bit fields

Section 5.6, "Configuration

Renamed bits 5 and 6

Rev. 0.53 (4/23/09)

Section 3.4, "SPI Interface"

Updated section to describe Normal operation

Table 7.1 Customer Revision History (continued)

REVISION LEVEL & DATE

SECTION/FIGURE/ENTRY

CORRECTION

CAP1088 Datasheet(PDF) 71 Page - SMSC Corporation

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