C8051F537-IM Silicon Laboratories Inc, C8051F537-IM Datasheet - Page 44

• Manufacturer Part Number: C8051F537-IM
• Description: IC 8051 MCU 2K FLASH 20QFN
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F53xr

Specifications of C8051F537-IM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 16
• Program Memory Size: 2KB (2K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.25 V
• Data Converters: A/D 16x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 20-QFN
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: SPI, UART
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 16
• Number Of Timers: 3
• Operating Supply Voltage: 2.7 V to 5.25 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12 bit, 16 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details
• Other names: 336-1400

C8051F52x/F52xA/F53x/F53xA
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Table 3.6. TSSOP-20 Landing Diagram Dimensions
Notes:
General
Solder Mask Design
Stencil Design
Card Assembly
1. All dimensions shown are in millimeters (mm) unless otherwise noted.
2. This land pattern design is based on the IPC-7351 guidelines.
3. All metal pads are to be non-solder mask defined (NSMD). Clearance
4. A stainless steel, laser-cut and electro-polished stencil with trapezoidal
5. The stencil thickness should be 0.125 mm (5 mils).
6. The ratio of stencil aperture to land pad size should be 1:1 for all
7. A No-Clean, Type-3 solder paste is recommended.
8. The recommended card reflow profile is per the JEDEC/IPC J-STD-
between the solder mask and the metal pad is to be 60 µm minimum,
all the way around the pad.
walls should be used to assure good solder paste release.
perimeter pads.
020 specification for Small Body Components.
Symbol
X1
Y1
C
E
Figure 3.4. TSSOP-20 Landing Diagram
Rev. 1.3
5.80
0.35
1.35
Min
0.65 BSC.
Max
5.90
0.45
1.45