C8051F321-GM Silicon Laboratories Inc, C8051F321-GM Datasheet - Page 17

• Manufacturer Part Number: C8051F321-GM
• Description: IC 8051 MCU 16K FLASH 28MLP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F32xr

Specifications of C8051F321-GM

• Program Memory Type: FLASH
• Program Memory Size: 16KB (16K x 8)
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 21
• Ram Size: 2.25K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 13x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: C8051F3x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 2.25 KB
• Interface Type: I2C/SMBus/SPI/UART/USB
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 21
• Number Of Timers: 4
• Operating Supply Voltage: 2.7 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: C8051F320DK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 13-ch x 10-bit or 17-ch x 10-bit
• No. Of I/o's: 21
• Ram Memory Size: 1280Byte
• Cpu Speed: 25MHz
• No. Of Timers: 4
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 336-1480 - DAUGHTER CARD TOOLSTCK C8051F321770-1006 - ISP 4PORT FOR SILABS C8051F MCU336-1449 - ADAPTER PROGRAM TOOLSTICK F321336-1260 - DEV KIT FOR C8051F320/F321
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1261

1.
C8051F320/1 devices are fully integrated mixed-signal System-on-a-Chip MCUs. Highlighted features are listed
below. Refer to Table 1.1 for specific product feature selection.
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•
•
•
•
•
•
•
•
•
•
•
•
•
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With on-chip Power-On Reset, VDD monitor, Voltage Regulator, Watchdog Timer, and clock oscillator,
C8051F320/1 devices are truly stand-alone System-on-a-Chip solutions. The FLASH memory can be reprogrammed
in-circuit, providing non-volatile data storage, and also allowing field upgrades of the 8051 firmware. User software
has complete control of all peripherals, and may individually shut down any or all peripherals for power savings.
The on-chip Silicon Labs 2-Wire (C2) Development Interface allows non-intrusive (uses no on-chip resources), full
speed, in-circuit debugging using the production MCU installed in the final application. This debug logic supports
inspection and modification of memory and registers, setting breakpoints, single stepping, run and halt commands.
All analog and digital peripherals are fully functional while debugging using C2. The two C2 interface pins can be
shared with user functions, allowing in-system debugging without occupying package pins.
Each device is specified for 2.7 V-to-3.6 V operation over the industrial temperature range (-40°C to +85°C). (Note
that 3.0 V-to-3.6 V is required for USB communication.) The Port I/O and /RST pins are tolerant of input signals up
to 5 V. C8051F320/1 are available in a 32-pin LQFP or a 28-pin MLP package.
C8051F320
C8051F321
High-speed pipelined 8051-compatible microcontroller core (up to 25 MIPS)
In-system, full-speed, non-intrusive debug interface (on-chip)
Universal Serial Bus (USB) Function Controller with eight flexible endpoint pipes, integrated transceiver, and
1k FIFO RAM
Supply Voltage Regulator (5V-to-3V)
True 10-bit 200 ksps 17-channel single-ended/differential ADC with analog multiplexer
On-chip Voltage Reference and Temperature Sensor
On-chip Voltage Comparators (2)
Precision programmable 12 MHz internal oscillator and 4x clock multiplier
16k bytes of on-chip FLASH memory
2304 total bytes of on-chip RAM (256 + 1k + 1k USB FIFO)
SMBus/I
Four general-purpose 16-bit timers
Programmable Counter/Timer Array (PCA) with five capture/compare modules and Watchdog Timer function
On-chip Power-On Reset, VDD Monitor, and Missing Clock Detector
25/21 Port I/O (5V tolerant)
SYSTEM OVERVIEW
2
C, Enhanced UART, and Enhanced SPI serial interfaces implemented in hardware
25
25
16k
16k
2304
2304
Table 1.1. Product Selection Guide
Rev. 1.1
4
4
25
21
C8051F320/1
2
2
LQFP-32
MLP-28
17