SiM3U157-B-GM Silicon Labs, SiM3U157-B-GM Datasheet - Page 88

• Manufacturer Part Number: SiM3U157-B-GM
• Description: ARM Microcontrollers - MCU ARM Cortex-M3 USB 128KB LGA92
• Manufacturer: Silicon Labs

Specifications of SiM3U157-B-GM

• 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: LGA-92
• Mounting Style: SMD/SMT
• Length: 7 mm
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 65
• Number Of Timers: 2 x 32 bit
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 1.8 V

SiM3U1xx
88
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 6.13. QFN-40 Landing Diagram Dimensions
Least Material Condition (LMC) is calculated based on a
Fabrication Allowance of 0.05 mm.
Dimension
Figure 6.15. QFN-40 Landing Diagram
C1
C2
X1
Y1
X2
Y2
E
Rev. 1.0
5.90
5.90
0.50
0.30
0.85
4.65
4.65
mm