C8051F321-GMR Silicon Laboratories Inc, C8051F321-GMR Datasheet - Page 239

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

Specifications of C8051F321-GMR

• 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
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• 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
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• 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
• 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: 10 bit, 13 Channel / 10 bit, 7 Channel
• Package: 28MLP
• Device Core: 8051
• Family Name: C8051F321
• Maximum Speed: 25 MHz
• Operating Supply Voltage: 3.3 V
• For Use With: 336-1480 - DAUGHTER CARD TOOLSTCK C8051F321336-1449 - ADAPTER PROGRAM TOOLSTICK F321336-1260 - DEV KIT FOR C8051F320/F321
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

20.4. Register Descriptions for PCA
Following are detailed descriptions of the special function registers related to the operation of the PCA.
Notes:
System Clock (Hz)
1. Assumes SYSCLK / 12 as the PCA clock source, and a PCA0L value
2. Internal oscillator reset frequency.
Table 20.3. Watchdog Timer Timeout Intervals
24,000,000
24,000,000
24,000,000
12,000,000
12,000,000
12,000,000
1,500,000
1,500,000
1,500,000
of 0x00 at the update time.
4,000,000
4,000,000
4,000,000
32,768
32,768
32,768
2
2
2
PCA0CPL4
Rev. 1.4
255
128
255
128
255
128
255
128
255
128
32
32
32
32
32
Timeout Interval (ms)
12,093.75
3,093.75
24,000
196.6
524.3
264.2
32.8
16.5
65.5
33.0
99.1
25.3
67.6
4.2
8.4
C8051F320/1
1
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