C8051F961-A-GM Silicon Labs, C8051F961-A-GM Datasheet - Page 274

• Manufacturer Part Number: C8051F961-A-GM
• Description: 8-bit Microcontrollers - MCU 128KB, DC-DC, LCD AES, QFN40
• Manufacturer: Silicon Labs

Specifications of C8051F961-A-GM

• Rohs: yes
• Core: 8051
• Processor Series: C8051
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 25 MHz
• Program Memory Size: 128 KB
• Data Ram Size: 8448 B
• On-chip Adc: Yes
• Operating Supply Voltage: 2.5 V to 3.3 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: QFN-40
• Mounting Style: SMD/SMT
• Number Of Programmable I/os: 34
• Number Of Timers: 4

C8051F96x
SFR Definition 20.2. DC0CF: DC-DC Converter Configuration
SFR Page = 0x2; SFR Address = 0xB2
274
Name
Reset
Type
Bit
Bit
6:3
1:0
7
2
SWSEL[1:0] DC
VSEL[3:0]
VSEL[2:0]
BYPASS
BYPASS
Name
R
7
0
DC
0: The bypass switch is open.
1: The bypass switch is closed (VDC is connected to VBATDC).
DC
Specifies the target output voltage.
0000: Target output voltage is 1.8 V.
0001: Target output voltage is 1.9 V.
0010: Target output voltage is 2.0 V.
0011: Target output voltage is 2.1 V.
0100: Target output voltage is 2.2 V.
0101: Target output voltage is 2.3 V.
0110: Target output voltage is 2.4 V.
0111: Target output voltage is 2.5 V.
DC
0: The local oscillator inside the dc-dc converter is enabled.
1: The local oscillator inside the dc-dc converter is disabled.
Selects the size of the power switches (M1, M2). Using smaller switches will resut
in higher efficiency at low supply currents.
00: Minimum switch size, optimized for load currents smaller than 5 mA.
01: Reserved.
10: Reserved.
11: Maximum switch size, optimized for load currents greater than 5 mA.
-
-
-
-
DC Converter Bypass Switch Active Indicator.
DC Converter Output Voltage Select.
DC Converter Local Oscillator Disabled.
DC Converter Power Switch Select.
6
0
5
0
VSEL[3:0]
R/W
Rev. 0.5
4
0
Function
3
1
1000: Target output voltage is 2.6 V.
1001: Target output voltage is 2.7 V.
1010: Target output voltage is 2.8 V.
1011: Target output voltage is 2.9 V.
1100: Target output voltage is 3.0 V.
1101: Target output voltage is 3.1 V.
1110: Target output voltage is 3.3 V.
1111: Target output voltage is 3.5 V.
OSCDIS
R/W
2
0
1
1
SWSEL[1:0]
0
1