C8051F321-GMR Datasheet, PDF (16/250 Pages) Silicon Laboratories – Full Speed USB, 16 k ISP FLASH MCU Family

C8051F320/1
Table 1.1. Product Selection Guide
C8051F320-GQ 25 16 k 2304       4  25    2 LQFP-32
C8051F321-GM 25 16 k 2304       4  21    2 QFN-28
REGIN
VDD
GND
5.0V
IN
Voltage
Regulator
OUT
Analog/Digital
Power
Enable
C2D
Debug HW
/RST/C2CK
XTAL1 XTAL2
POR
Brown-
Out
External
Oscillator
Circuit
12MHz
Internal
Oscillator
x4
2
8
16kbyte
0
FLASH
5 ^Reset
1
C
256 byte
SRAM
1K byte
XRAM
o
System ^{r SFR Bus}
e ^Clock
Clock
Recovery
D+
D-
VBUS
2
1,2,3,4
USB Clock
USB
Transceiver
USB
Controller
1K byte USB
SRAM
Port 0
Latch
Port 1
Latch
UART
Timer
0,1,2,3 /
RTC
PCA/
WDT
SMBus
SPI
Port 2
Latch
Port 3
Latch
VREF
VREF
VDD
10-bit
200ksps
ADC
P
0
D
r
v
C
R
P
O
1
S
S
D
B
r
A
v
R
P
2
D
r
v
P
3
D
r
v
CP0
+
-
CP1
+
-
Temp
A
AIN0-AIN16
M
U VDD
X _VREF
Figure 1.1. C8051F320 Block Diagram
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
P3.0/C2D
16
Rev. 1.4