SIM3U156-B-GQ Silicon Labs, SIM3U156-B-GQ Datasheet - Page 91

• Manufacturer Part Number: SIM3U156-B-GQ
• Description: ARM Microcontrollers - MCU ARM Cortex-M3 USB 128KB TQFP64
• Manufacturer: Silicon Labs

Specifications of SIM3U156-B-GQ

• Rohs: yes
• Core: ARM Cortex M3
• Processor Series: SIM3U1xx
• Data Bus Width: 32 bit
• Maximum Clock Frequency: 80 MHz
• Program Memory Size: 128 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: TQFP-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

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