C8051F335-GMR Silicon Laboratories Inc, C8051F335-GMR Datasheet - Page 59

• Manufacturer Part Number: C8051F335-GMR
• Description: IC 8051 MCU 2K FLASH 20MLP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F33xr

Specifications of C8051F335-GMR

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 17
• Program Memory Size: 2KB (2K x 8)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-QFN
• For Use With: 336-1451 - ADAPTER PROGRAM TOOLSTICK F330
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

C8051F330/1/2/3/4/5
62
Bits7–4: UNUSED. Read = 0000b; Write = don’t care.
Bit3:
Bit2:
Bit1:
Bit0:
Bit7
R
-
REFSL: Voltage Reference Select.
This bit selects the source for the internal voltage reference.
0: VREF pin used as voltage reference.
1: V
TEMPE: Temperature Sensor Enable Bit.
0: Internal Temperature Sensor off.
1: Internal Temperature Sensor on.
BIASE: Internal Analog Bias Generator Enable Bit.
0: Internal Bias Generator off.
1: Internal Bias Generator on.
REFBE: Internal Reference Buffer Enable Bit.
0: Internal Reference Buffer disabled.
1: Internal Reference Buffer enabled. Internal voltage reference driven on the VREF pin.
DD
Bit6
R
-
used as voltage reference.
SFR Definition 7.1. REF0CN: Reference Control
Bit5
R
-
Bit4
R
-
Rev. 1.7
REFSL
R/W
Bit3
TEMPE
R/W
Bit2
BIASE
R/W
Bit1
REFBE
R/W
Bit0
SFR Address:
00000000
Reset Value
0xD1