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Q2686 Wireless CPU®
Product Technical Specification
Revision: 007
Date: March 2007

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Q2686 Wireless CPU®
Product Technical Specification
Reference: WM_PRJ_Q2686_PTS_001
Revision: 007
Date: March 6, 2007
Supports Open AT® embedded ANSI C applications
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This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without
prior written agreement.
WM_PRJ_Q2686_PTS_001-007
March 6, 2007

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Q2686 Wireless CPU®
Document History
Level
001
002
www.DataSheet4U.c0o0m3
004
005
Date
01/17/2005
06/01/2005
15/09/2005
November
22, 2005
February
2006
List of revisions
Creation (Preliminary version)
Pin-out modification (see chapter 3.1)
Update Functional architecture
Pin-out modification (see chapter 4.1)
Add RESET state of all IOs of all interfaces
Update power supply range (see chapter 3.2)
Update electrical information for digital IO
(see chapter 3.2)
Update SPI bus configuration (see chapter 3.4)
Remove 3 GPIO (see chapter 3.9)
Change MIC1 biasing voltage configuration
(see chapter 3.11)
Change SPK1 definition to only single-ended
(see chapter 3.11)
Update ON/ÕFF operating sequence (see chapter 3.14)
Update BOOT definition (see chapter 3.15)
Update ~RESET operating sequence and electrical
characteristics (see chapter 3.14)
Update Interrupt activation (see chapter 3.17)
Update RTC electrical characteristics (see chapter 3.19)
Update PCM description and add waveform
(see chapter 3.21)
Update Q2686 version “Overview” section
Update “Cautions”, “Trademarks” and “Copyright”
Update “Electrical information for digital I/O”
(see chapter 3.3)
Update SPI max frequency (see chapter 3.4)
Update available GPIO (see chapter 3.9)
Add “OFF state“ voltage caution (see chapter 3.2)
Update “Battery charging interface” (see chapter 3.13)
Update “Analog audio interface” (see chapter 3.11)
Update ”Environmental Specifications” (see chapter 4.2)
Update “General Purpose Connector pin-out description”
(see chapter 4.1)
Update “PCM interface” waveform (see chapter 3.21)
Update “Electrical information for digital IO” absolute
maximum rating (see chapter 3.3)
Update “General purpose connector” (see chapter 3.1)
Update “SPI bus” speed (see chapter 3.4.1)
Update “I²C bus” (see chapter 3.4.2)
Update “Main serial link UART 1” maximum speed
(see chapter 3.6)
Update “Auxiliary serial link UART 2” maximum speed
(see chapter 3.7)
Update “SIM” General description (see chapter 3.8.1)
Update “USB 2.0 interface” features (see chapter 3.22)
Update “Operating system upgrade” (see chapter 6.3)
Update “General purpose input/output” signals description
(see chapter 3.9)
Update “General purpose connector pin-out description”
signal description (see chapter 4.1)
Update “Battery charging interface” (see chapter 3.13)
Update “Analog to μDigital Converter” (see chapter 3.10)
Update “FLASH-LED signal” (see chapter 3.20)
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WM_PRJ_Q2686_PTS_001-007
March 6, 2007

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Q2686 Wireless CPU®
Level
006
www.DataSheet4U.com
007
Date
List of revisions
Update ‘Analog Audio interface” (see chapter 3.11)
March 2006
March 2007
Update “Power consumption” (see chapter 3.3.2)
Update “ON/~OFF signal” (see chapter 3.14)
Update “BAT-RTC” (see chapter 3.19)
Update “Electrical information for digital IO” absolute
maximum rating (see chapter 3.3)
Update “Buzzer output”, remove PWM features ( see
chapter 3.12 )
Update “EMC recommendation” add ESD
recommendations (see chapter 6.1.1 )
Update “SPI bus” add waveforms ( see chapter 3.4.1 )
Update “I²C bus” add waveforms ( see chapter 3.4.2 )
Update “Analog to Digital Converter“ sampling rate
(see chapter 3.10)
Modification of the ON/ ~OFF paragraph
Add ATEX 94/9/CE directive information in section 4.3
Update reference documents
Update section 3.6 “Main serial link (UART1)”
Other minor corrections
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prior written agreement.
WM_PRJ_Q2686_PTS_001-007
March 6, 2007

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Q2686 Wireless CPU®
Overview
This document defines and specifies the Q2686 Wireless CPU®, available in a
GSM/GPRS Class 10 quad-band version:
Q2686: EGSM/GPRS 900/1800/850/1900 MHz version with 32 Mb of
Bursted Flash memory and 8 Mb of SRAM (32/8).
www.DataSheet4U.cTohme Q2686 Wireless CPU®” supports a powerful open software platform (Open
AT®). Open AT® is the world’s most comprehensive cellular development
environment, which allows embedded standard ANSI C applications to be
natively executed directly on the Wireless CPU®.
This Product Specification document covers the Wireless CPU® alone and does
not include the programmable capabilities provided via the use of Open AT®
Software Suites.
For detailed software programming guides, refer to the documents shown in the
“References” section.
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This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without
prior written agreement.
WM_PRJ_Q2686_PTS_001-007
March 6, 2007