C8051F236 Silicon Laboratories Inc, C8051F236 Datasheet - Page 102

• Manufacturer Part Number: C8051F236
• Description: IC 8051 MCU 8K FLASH 48TQFP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F2xxr

Specifications of C8051F236

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, WDT
• Number Of I /o: 32
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.25K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-TQFP, 48-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

C8051F2xx
102
Comparators
INT0 & INT1
ADC
T0,T1,T2
SYSCLK
External
Timers
UART
0 & 1
SPI
ADC
To Comparator Input (on
WEAK PUD
PUSH-PULL
/PORT-OUTENABLE
PORT-OUTPUT
Digital Input
port 1 only)
Figure 14.1. Port I/O Functional Block Diagram
Figure 14.2. Port I/O Cell Block Diagram
Analog Select
M
A
U
X
Registers
PRTnMX
MUX
Port
MUX
Port
MUX
Port
0
1
2
Rev. 1.6
Port0 I/O Cell
Port1 I/O Cell
Port2 I/O Cell
Port3 I/O Cell
PRTnCF &
PnMODE
registers
DGND
Digital Enable
VDD
External
P0.0/TX
P0.1/RX
P0.2/INT0
P0.3/INT1
P0.4/T0
P0.5/T1
P0.6/T2
P0.7/T2EX
P1.0/CP0+
P1.1/CP0-
P1.2/CP0
P1.3/CP1+
P1.4/CP1-
P1.5/CP1
P1.6/SYSCLK
P1.7
P2.0/SCK
P2.1/MISO
P2.2/MOSI
P2.3/NSS
P2.4
P2.5
P2.6
P2.7
P3.0
P3.1
P3.2
P3.3
P3.4
P3.5
P3.6
P3.7
pins
VDD
configured via software as an
(WEAK)
analog input to the ADC
Any port pin may be
PORT
PAD