SIM3U146-B-GM Silicon Labs, SIM3U146-B-GM Datasheet - Page 81

• Manufacturer Part Number: SIM3U146-B-GM
• Description: ARM Microcontrollers - MCU ARM Cortex-M3 USB 64KB QFN64
• Manufacturer: Silicon Labs

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

Notes:
1. All dimensions shown are in millimeters (mm).
2. This Land Pattern Design is based on the IPC-7351 guidelines.
3. All dimensions shown are at Maximum Material Condition (MMC).
Table 6.9. QFN-64 Landing Diagram Dimensions
Least Material Condition (LMC) is calculated based on a
Fabrication Allowance of 0.05 mm.
Dimension
Figure 6.11. QFN-64 Landing Diagram
C1
C2
X1
Y1
X2
Y2
E
Rev. 1.0
8.90
8.90
0.50
0.30
0.85
4.25
4.25
mm
SiM3U1xx
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