EFM32WG840F128 Energy Micro, EFM32WG840F128 Datasheet - Page 55

• Manufacturer Part Number: EFM32WG840F128
• Description: ARM Microcontrollers - MCU 128kb flash 32kb RAM
• Manufacturer: Energy Micro

Specifications of EFM32WG840F128

• Rohs: yes
• Core: ARM Cortex M4F
• Processor Series: EFM32WG840
• Data Bus Width: 32 bit
• Maximum Clock Frequency: 48 MHz
• Program Memory Size: 128 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: QFN-64
• Mounting Style: SMD/SMT

4.5 QFN64 Package
2012-09-11 - EFM32WG840FXX - d0195_Rev1.00
Figure 4.3. QFN64
Note:
1. Dimensioning & tolerancing confirm to ASME Y14.5M-1994.
2. All dimensions are in millimeters. Angles are in degrees.
3. Dimension 'b' applies to metallized terminal and is measured between 0.25 mm and 0.30 mm from
4. Coplanarity applies to the exposed heat slug as well as the terminal.
5. Radius on terminal is optional
Table 4.4. QFN64 (Dimensions in mm)
The QFN64 Package uses Nickel-Palladium-Gold preplated leadframe.
All EFM32 packages are RoHS compliant and free of Bromine (Br) and Antimony (Sb).
Symbol
the terminal tip. Dimension L1 represents terminal full back from package edge up to 0.1 mm is
acceptable.
Nom
Max
Min
0.80
0.85
0.90
A
0.00
0.05
A1
-
0.203
REF
A3
0.20
0.25
0.30
Preliminary
b
BSC
9.00
D
BSC
9.00
E
7.10
7.20
7.30
D2
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7.10
7.20
7.30
E2
BSC
0.50
e
0.40
0.45
0.50
L
0.00
0.10
L1
0.10
aaa
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0.10
bbb
0.10
ccc
0.05
ddd
0.08
eee