C8051F321R Silicon Laboratories Inc, C8051F321R Datasheet - Page 18

• Manufacturer Part Number: C8051F321R
• Description: IC 8051 MCU 16K FLASH 28MLP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F32xr

Specifications of C8051F321R

• 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
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• 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
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: 336-1067-2

C8051F320/1
18
/RST/C2CK
REGIN
VBUS
VDD
GND
D+
D-
XTAL1 XTAL2
Recovery
Oscillator
Oscillator
Clock
External
Internal
12MHz
Circuit
Analog/Digital
C2D
5.0V
Power
IN
POR
Regulator
Voltage
OUT
1,2,3,4
Debug HW
Transceiver
Brown-
Out
x4
USB
2
Figure 1.1. C8051F320 Block Diagram
Enable
2
USB Clock
1K byte USB
Controller
SRAM
USB
System
Clock
Reset
C
8
0
5
1
o
e
r
SFR Bus
Rev. 1.1
256 byte
16kbyte
1K byte
FLASH
SRAM
XRAM
VDD
VREF
0,1,2,3 /
10-bit
200ksps
ADC
SMBus
Port 0
Port 1
UART
Port 2
Port 3
Latch
Latch
Timer
Latch
Latch
PCA/
WDT
RTC
SPI
VREF
CP0
CP1
Temp
M
A
U
X
+
+
-
-
C
R
O
S
S
B
A
R
VREF
VDD
AIN0-AIN16
D
D
P
0
D
P
1
D
P
2
P
3
r
v
r
v
r
v
r
v
P3.0/C2D
P0.0
P0.1
P0.2/XTAL1
P0.3/XTAL2
P0.4
P0.5
P0.6/CNVSTR
P0.7/VREF
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
P2.7