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Single/Dual Battery, 0.9–3.6 V, 64/32 kB, smaRTClock, 10-Bit ADC MCU
C8051F93x-C8051F92x
Rev. 1.0 11/08 Copyright © 2008 by Silicon Laboratories C8051F93x-C8051F92x
Supply Voltage 0.9 to 3.6 V
-
One-Cell Mode supports 0.9 to 1.8 V operation
- Two-Cell Mode supports 1.8 to 3.6 V operation
- Built-in dc-dc converter with 1.8 to 3.3 V output for
use in one-cell mode
- Built-in LDO regulator allows a high analog supply
voltage and low digital core voltage
- 2 built in supply monitors (brownout detectors)
10-Bit Analog to Digital Converter
- ±1 LSB INL; no missing codes
- Programmable throughput up to 300 ksps
- Up to 23 external inputs
- On-Chip Voltage Reference
- On-Chip PGA allows measuring voltages up to twice
the reference voltage.
- 16-bit Auto-Averaging Accumulator with Burst Mode
provides increased ADC resolution.
- Data dependent windowed interrupt generator
- Built-in temperature sensor
Two Comparators
-
Programmable hysteresis and response time
- Configurable as wake-up or reset source
- Up to 23 Capacitive Touch Sense Inputs
6-Bit Programmable Current Reference
-
Up to ±500 µA. Can be used as a bias or for
generating a custom reference voltage.
On-Chip Debug
-
On-chip debug circuitry facilitates full-speed, non-
intrusive in-system debug (No emulator required)
- Provides breakpoints, single stepping
- Inspect/modify memory and registers
- Complete development kit
High-Speed 8051 µC Core
-
Pipelined instruction architecture; executes 70% of
instructions in 1 or 2 system clocks
- Up to 25 MIPS throughput with 25 MHz clock
- Expanded interrupt handler
Memory
-
4352 bytes internal data RAM (256 + 4096)
- 64 kB (‘F93x) or 32 kB (‘F92x) Flash; In-system pro-
grammable in 1024-byte sectors—1024 bytes are
reserved in the
64 kB devices
Digital Peripherals
-
24 or 16 port I/O; All 5 V tolerant with high sink
current and programmable drive strength-Hard
ware
SMBus™ (I
2
C™ Compatible), 2 x SPI™, and UART
serial ports available concurrently
- Four general purpose 16-bit counter/timers
- Programmable 16-bit counter/timer array with six
capture/compare modules and watchdog timer
- Hardware smaRTClock operates down to 0.9 V and
requires less than 0.5 µA supply current.
Clock Sources
-
Internal oscillators: 24.5 MHz, 2% accuracy
supports UART operation; 20 MHz low power
oscill
ator requires very little bias current.
- External oscillator: Crystal, RC, C, or CMOS Clock
- smaRTClock oscillator: 32 kHz Crystal or internal
- Can switch between clock sources on-the-fly; useful
in implementing various power saving modes
Packages
-
32-pin QFN (5 x 5 mm)
- 24-pin QFN (4 x 4 mm)
- 32-pin LQFP (7 x 7 mm, easy to hand-solder)
Temperature Range: –40 to +85 °C
ANALOG
PERIPHERALS
10-bit
300 ksps
ADC
64/32 kB
ISP FLASH
4352 B
SRAM
POR
DEBUG
CIRCUITRY
FLEXIBLE
INTERRUPTS
8051 CPU
(25 MIPS)
TEMP
SENSOR
DIGITAL I/O
24.5 MHz PRECISION
INTERNAL OSCILLATOR
HIGH-SPEED CONTROLLER CORE
A
M
U
X
CROSSBAR
VOLTAGE
COMPARATORS
+
–
WDT
UART
SMBus
PCA
Timer 0
Timer 1
Timer 2
Timer 3
Port 0
2 x SPI
IREF
Port 1
Port 2
+
–
VREG
20 MHz LOW POWER
INTERNAL OSCILLATOR
VREF
CRC
HARDWARE smaRTClockExternal Oscillator
EMIF
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