General Purpose Copyright © 2004 by Silicon Laboratories 8.9.2004
P0, P1,
P2, P3
Latches
JTAG
Logic
TCK
TMS
TDI
TDO
UART1
SMBus
SPI Bus
PCA
VDD
Monitor
Timers 0,
1, 2, 4
Timer 3/
RTC
P0
Drv
C
R
O
S
S
B
A
R
Port I/O
Config.
Crossbar
Config.
AV+
VDD
VDD
VDD
DGND
DGND
DGND
AGND
Reset
RST
Digital Power
Analog Power
Debug HW
Boundary Scan
P2.0
P2.7
P1.0/AIN2.0
P1.7/AIN2.7
P0.0
P0.7
P1
Drv
P2
Drv
Data Bus
Address Bus
Bus Control
VREF
ADC
100ksps
(10-Bit)
A
M
U
X
AIN0.0
AIN0.1
AIN0.2
AIN0.3
AIN0.4
AIN0.5
AIN0.6
AIN0.7
CP0+
CP0-
CP1+
CP1-
VREF
TEMP
SENSOR
UART0
P3.0
P3.7
P3
Drv
MONEN WDT
VREF0
Prog
Gain
CP0
CP1
C
T
L
P4 Latch
D
a
t
a
P7 Latch
A
d
d
r
P5 Latch
P6 Latch
P7
DRV
P5
DRV
P6
DRV
P4
DRV
XTAL1
XTAL2
External Oscillator
Circuit
System
Clock
Calibrated Internal
Oscillator
PLL
Circuitry
256 byte
RAM
SFR Bus
8
0
5
1
C
o
r
e
8kbyte
XRAM
External Data
Memory Bus
FLASH
128kbyte
64x4 byte
cache
C8051F131
100 MIPS, 128 kB Flash, 10-Bit ADC, 64-Pin Mixed-Signal MCU
Analog Peripherals
10-Bit ADC
-±1 LSB INL; no missing codes
-Programmable throughput up to 100 ksps
-8 external inputs; programmable as single-ended or differential
-Programmable amplifier gain: 16, 8, 4, 2, 1, 0.5
-Data-dependent windowed interrupt generator
-Built-in temperature sensor (±3 °C)
Two Comparators
Internal Voltage Reference
VDD Monitor/Brown-out Detector
On-Chip JTAG Debug & Boundary Scan
-On-chip debug circuitry facilitates full speed, non-intrusive in-system
debug (no emulator required)
-Provides breakpoints, single stepping, watchpoints, stack monitor
-Inspect/modify memory and registers
-Superior performance to emulation systems using ICE-chips, target
pods, and sockets
-IEEE1149.1 compliant boundary scan
High-Speed 8051 µC Core
-Pipelined instruction architecture; executes 70% of instructions in 1 or 2
system clocks
-Up to 100 MIPS throughput with 100 MHz system clock
-16 x 16 multiply/accumulate engine (2-cycle)
Memory
-8448 bytes data RAM
-128 kB Flash; in-system programmable in 1024-byte sectors (1024 bytes
are reserved)
-External parallel data memory interface
Digital Peripherals
-32 port I/O; all are 5 V tolerant
-Hardware SMBus™ (I2C™ Compatible), SPI™, and two UART serial
ports available concurrently
-Programmable 16-bit counter/timer array with six capture/compare
modules
-5 general-purpose 16-bit counter/timers
-Dedicated watchdog timer; bidirectional reset
-Real-time clock mode using Timer 3 or PCA
Clock Sources
-Internal oscillator: 24.5 MHz, 2% accuracy supports UART operation
-On-chip programmable PLL: up to 100 MHz
-External oscillator: Crystal, RC, C, or Clock
Supply Voltage: 3.0 to 3.6 V
-Typical operating current: 50 mA at 100 MHz
-Typical stop mode current: 0.4 µA
64-Pin TQFP
Temperature Range: –40 to +85 °C