C8051F121-GQ Silicon Laboratories Inc, C8051F121-GQ Datasheet - Page 101
C8051F121-GQ
Manufacturer Part Number
C8051F121-GQ
Description
IC 8051 MCU FLASH 128K 64TQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F12xr
Specifications of C8051F121-GQ
Program Memory Type
FLASH
Program Memory Size
128KB (128K x 8)
Package / Case
64-TQFP, 64-VQFP
Core Processor
8051
Core Size
8-Bit
Speed
100MHz
Connectivity
EBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
32
Ram Size
8.25K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 8x8b, 8x12b; D/A 2x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
C8051F1x
Core
8051
Data Bus Width
8 bit
Data Ram Size
8.25 KB
Interface Type
I2C/SMBus/SPI/UART
Maximum Clock Frequency
100 MHz
Number Of Programmable I/os
32
Number Of Timers
5
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
C8051F120DK
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 8-bit or 8-ch x 12-bit
On-chip Dac
2-ch x 12-bit
No. Of I/o's
32
Ram Memory Size
8448Byte
Cpu Speed
100MHz
No. Of Timers
5
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
336-1224 - DEVKIT-F120/21/22/23/24/25/26/27
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1225
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F121-GQ
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
Company:
Part Number:
C8051F121-GQR
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
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7.3.2. Window Detector In Differential Mode
Figure 7.6 shows two example window comparisons for differential mode, with ADC2LT = 0x10 (+16d) and
ADC2GT = 0xFF (-1d). Notice that in Differential mode, the codes vary from -VREF to VREF*(127/128)
and are represented as 8-bit 2’s complement signed integers. In the left example, an AD2WINT interrupt
will be generated if the ADC2 conversion word (ADC2L) is within the range defined by ADC2GT and
ADC2LT (if 0xFF (-1d) < ADC2 < 0x0F (16d)). In the right example, an AD2WINT interrupt will be gener-
ated if ADC2 is outside of the range defined by ADC2GT and ADC2LT (if ADC2 < 0xFF (-1d) or ADC2 >
0x10 (+16d)).
(AIN2.x - AIN2.y)
REF x (127/128)
REF x (16/128)
REF x (-1/256)
Input Voltage
-REF
Figure 7.6. ADC2 Window Compare Examples, Differential Mode
0x80 (-128d)
0x7F (127d)
0x11 (17d)
0x10 (16d)
0x0F (15d)
0xFF (-1d)
0xFE (-2d)
0x00 (0d)
ADC2
not affected
not affected
AD2WINT
AD2WINT
ADC2GT
ADC2LT
AD2WINT=1
Rev. 1.4
(AIN2.x - AIN2.y)
REF x (127/128)
REF x (16/128)
REF x (-1/256)
C8051F120/1/2/3/4/5/6/7
Input Voltage
-REF
0x80 (-128d)
0x7F (127d)
0x0F (15d)
0x11 (17d)
0x10 (16d)
0xFF (-1d)
0xFE (-2d)
0x00 (0d)
ADC2
C8051F130/1/2/3
not affected
AD2WINT
ADC2GT
ADC2LT
AD2WINT=1
AD2WINT=1
101
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