C8051F966-A-GQ Silicon Labs, C8051F966-A-GQ Datasheet - Page 281

• Manufacturer Part Number: C8051F966-A-GQ
• Description: 8-bit Microcontrollers - MCU 32KB DC-DC LCD AES
• Manufacturer: Silicon Labs

Specifications of C8051F966-A-GQ

• Rohs: yes
• Core: 8051
• Processor Series: C8051
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 24.5 MHz
• Program Memory Size: 32 KB
• Data Ram Size: 8 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 1.8 V to 3.8 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: QFP-80
• Mounting Style: SMD/SMT

Important Notes:
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The Power-on Reset (POR) delay is not incurred after a supply monitor reset. See Section “4. Electrical
Characteristics” on page 56 for complete electrical characteristics of the active mode supply monitors.
Software should take care not to inadvertently disable the supply monitor as a reset source when
writing to RSTSRC to enable other reset sources or to trigger a software reset. All writes to RSTSRC
should explicitly set PORSF to 1 to keep the supply monitor enabled as a reset source.
The supply monitor must be enabled before selecting it as a reset source. Selecting the supply monitor
as a reset source before it has stabilized may generate a system reset. In systems where this reset
would be undesirable, a delay should be introduced between enabling the supply monitor and selecting
it as a reset source. See Section “4. Electrical Characteristics” on page 56 for minimum supply monitor
turn-on time. No delay should be introduced in systems where software contains routines that
erase or write Flash memory. The procedure for enabling the V
reset source is shown below:
1. Enable the Supply Monitor (VDMEN bit in VDM0CN = 1).
2. Wait for the Supply Monitor to stabilize (optional).
3. Select the Supply Monitor as a reset source (PORSF bit in RSTSRC = 1).
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