EFM32LG995F256 Energy Micro, EFM32LG995F256 Datasheet - Page 69

• Manufacturer Part Number: EFM32LG995F256
• Description: ARM Microcontrollers - MCU 256KB FL 32KB RAM
• Manufacturer: Energy Micro

Specifications of EFM32LG995F256

• Rohs: yes
• Core: ARM Cortex M3
• Processor Series: Leopard Gecko (LG)
• Data Bus Width: 32 bit
• Maximum Clock Frequency: 48 MHz
• Program Memory Size: 256 KB
• Data Ram Size: 32 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 1.85 V to 3.8 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: BGA-120
• Mounting Style: SMD/SMT
• A/d Bit Size: 12 bit
• Interface Type: I2C, SPI, USB, UART
• Number Of Programmable I/os: 93
• Program Memory Type: Flash

Preliminary
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List of Figures
2.1. Block Diagram ....................................................................................................................................... 3
2.2. EFM32LG995 Memory Map with largest RAM and Flash sizes ........................................................................ 9
3.1. Typical Low-Level Output Current, 2V Supply Voltage .................................................................................. 16
3.2. Typical High-Level Output Current, 2V Supply Voltage ................................................................................. 17
3.3. Typical Low-Level Output Current, 3V Supply Voltage .................................................................................. 18
3.4. Typical High-Level Output Current, 3V Supply Voltage ................................................................................. 19
3.5. Typical Low-Level Output Current, 3.8V Supply Voltage ............................................................................... 20
3.6. Typical High-Level Output Current, 3.8V Supply Voltage ............................................................................... 21
3.7. Minimum Load Capacitance (C
) Requirement For Safe Crystal Startup ..................................................... 22
LFXOL
3.8. Calibrated LFRCO Frequency vs Temperature and Supply Voltage ................................................................ 24
3.9. Calibrated HFRCO 11 MHz Band Frequency vs Temperature and Supply Voltage ............................................ 25
3.10. Calibrated HFRCO 14 MHz Band Frequency vs Temperature and Supply Voltage ........................................... 25
3.11. Calibrated HFRCO 21 MHz Band Frequency vs Temperature and Supply Voltage ........................................... 25
3.12. Calibrated HFRCO 28 MHz Band Frequency vs Temperature and Supply Voltage ........................................... 26
3.13. Integral Non-Linearity (INL) ................................................................................................................... 30
3.14. Differential Non-Linearity (DNL) .............................................................................................................. 31
3.15. ADC Frequency Spectrum, Vdd = 3V, Temp = 25° ................................................................................... 32
3.16. ADC Integral Linearity Error vs Code, Vdd = 3V, Temp = 25° ..................................................................... 33
3.17. ADC Differential Linearity Error vs Code, Vdd = 3V, Temp = 25° ................................................................. 34
3.18. ADC Absolute Offset, Common Mode = Vdd /2 ........................................................................................ 35
3.19. ADC Dynamic Performance vs Temperature for all ADC References, Vdd = 3V .............................................. 35
3.20. ADC Temperature sensor readout ......................................................................................................... 36
3.21. OPAMP Common Mode Rejection Ratio ................................................................................................. 39
3.22. OPAMP Positive Power Supply Rejection Ratio ........................................................................................ 39
3.23. OPAMP Negative Power Supply Rejection Ratio ...................................................................................... 40
3.24. OPAMP Voltage Noise Spectral Density (Unity Gain) V
=1V ..................................................................... 40
out
3.25. OPAMP Voltage Noise Spectral Density (Non-Unity Gain) .......................................................................... 40
3.26. Typical ACMP Characteristics ............................................................................................................... 42
4.1. EFM32LG995 Pinout (top view, not to scale) .............................................................................................. 46
4.2. Opamp Pinout ...................................................................................................................................... 59
4.3. BGA120 .............................................................................................................................................. 60
5.1. BGA120 PCB Land Pattern ..................................................................................................................... 61
5.2. BGA120 PCB Solder Mask ..................................................................................................................... 62
5.3. BGA120 PCB Stencil Design ................................................................................................................... 63
6.1. Example Chip Marking ........................................................................................................................... 64
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2012-09-11 - EFM32LG995FXX - d0124_Rev1.00
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