C8051F326 Datasheet, PDF (15/140 Pages) List of Unclassifed Manufacturers – Full Speed USB, 16 kB Flash MCU Family

C8051F326/7
REGIN
VDD
GND
/RST/C2CK
5.0 V
IN
Voltage
Regulator
OUT
Analog/Digital
Power
Enable
C2D
Debug HW
POR
Brown-
Out
Low Freq
Oscillator
XTAL2
12 MHz
Internal
Oscillator
x4
2
1,2,3,4
8
16 kB
0
FLASH
5 ^Reset
1
C
256 byte
SRAM
1 kB
XRAM
o
System ^{r SFR Bus}
e ^Clock
Port 0
Latch
UART
/SYSCLK
Timer 0,1
Port 2
Latch
Port 3
Latch
D+
D-
VBUS
Clock
Recovery
2
XTAL2
USB Clock
USB
Transceiver
USB
Controller
256 byte
USB SRAM
Figure 1.2. C8051F327 Block Diagram
P
P0.0/SYSCLK
P0.1
0
P0.2
P0.3/XTAL2
D
P0.4/TX
r
P0.5/RX
P0.6
v
P0.7
P
P2.0
P2.1
2
P2.2
P2.3
D
P2.4
r
P2.5
v
P
P3.0/C2D
3
D
r
v
Rev. 0.5
15