C8051F321-GM Silicon Laboratories Inc, C8051F321-GM Datasheet - Page 68

• Manufacturer Part Number: C8051F321-GM
• Description: IC 8051 MCU 16K FLASH 28MLP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F32xr

Specifications of C8051F321-GM

• Program Memory Type: FLASH
• Program Memory Size: 16KB (16K x 8)
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 21
• Ram Size: 2.25K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 13x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: C8051F3x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 2.25 KB
• Interface Type: I2C/SMBus/SPI/UART/USB
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 21
• Number Of Timers: 4
• Operating Supply Voltage: 2.7 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: C8051F320DK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 13-ch x 10-bit or 17-ch x 10-bit
• No. Of I/o's: 21
• Ram Memory Size: 1280Byte
• Cpu Speed: 25MHz
• No. Of Timers: 4
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 336-1480 - DAUGHTER CARD TOOLSTCK C8051F321770-1006 - ISP 4PORT FOR SILABS C8051F MCU336-1449 - ADAPTER PROGRAM TOOLSTICK F321336-1260 - DEV KIT FOR C8051F320/F321
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1261

C8051F320/1
Important Note: When USB is selected as a reset source, a system reset will be generated when the
VBUS signal matches the polarity selected by the VBPOL bit. See Section “10. Reset Sources” on page 99
for details on selecting USB as a reset source.
68
Table 8.1. Voltage Regulator Electrical Specifications
–40 to +85 °C unless otherwise specified.
Input Voltage Range
Output Voltage (V
Output Current
VBUS Detection Input Low Voltage
VBUS Detection Input High Voltage
Bias Current
Dropout Voltage (V
Notes:
1. Input range specified for regulation. When an external regulator is used, REGIN should be tied to
2. Output current is total regulator output, including any current required by the C8051F320/1.
3. The minimum input voltage is 2.70 V or VDD + V
From VBUS
Power Net
Parameter
2
To 3V
DD
DO
Figure 8.2. REG0 Configuration: USB Bus-Powered
1
)
2
)
3
REGIN
VBUS
VDD
Output Current = 1 to 100 mA
Normal Mode (REGMOD = 0)
Low Power Mode (REGMOD = 1)
C8051F320/1
Conditions
Rev. 1.4
DO
5V In
(max load), whichever is greater.
Voltage Regulator (REG0)
VBUS Sense
3V Out
Min
2.7
3.0
3.0
—
—
—
—
Typ
3.3
65
35
—
—
—
—
1
Power Net
Device
Max
5.25
100
111
3.6
1.0
61
—
—
V
DD
mV/mA
Units
.
mA
µA
V
V
V
V