SIM3U146-B-GM Silicon Labs, SIM3U146-B-GM Datasheet - Page 91
SIM3U146-B-GM
Manufacturer Part Number
SIM3U146-B-GM
Description
ARM Microcontrollers - MCU ARM Cortex-M3 USB 64KB QFN64
Manufacturer
Silicon Labs
Datasheet
1.SIM3U146-B-GM.pdf
(94 pages)
Specifications of SIM3U146-B-GM
Rohs
yes
Core
ARM Cortex M3
Processor Series
SIM3U1xx
Data Bus Width
32 bit
Maximum Clock Frequency
80 MHz
Program Memory Size
64 KB
Data Ram Size
32 KB
On-chip Adc
Yes
Operating Supply Voltage
1.8 V to 3.6 V
Operating Temperature Range
- 40 C to + 85 C
Package / Case
QFN-64
Mounting Style
SMD/SMT
Interface Type
2 x I2C, I2S, 3 x SPI, 2 x USART, 2 x UART
Number Of Programmable I/os
65
Number Of Timers
2 x 32 bit
Supply Voltage - Max
3.6 V
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7.2. Comparator Rising/Falling Edge Flags in Debug Mode (CMP0, CMP1)
7.2.1. Problem
On Revision A and Revision B devices, if the comparator output is high, the comparator rising and falling edge
flags will both be set to 1 upon single-step or exit from debug mode.
7.2.2. Impacts
Firmware using the rising and falling edge flags to make decisions may see a false trigger of the comparator if the
output of the comparator is high during a debug session. This does not impact the non-debug operation of the
device.
7.2.3. Workaround
There is not a system-agnostic workaround for this issue.
7.2.4. Resolution
This issue exists on Revision A and Revision B devices. It may be corrected in a future device revision.
1142BCS701
SiM3U166
Figure 7.3. SiM3U1x6 Revision Information
Figure 7.4. SiM3U1x4 Revision Information
QFN-64
e3
B-GM
TW
This first character identifies
BCS701
the device revision
Rev. 1.0
SiM3U
1142
These characters identify the
164
1142BCS701
SiM3U166
device revision
TQFP-64
e3
B-GQ
TW
SiM3U1xx
91
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