C8051F34B-GM Silicon Laboratories Inc, C8051F34B-GM Datasheet - Page 46
C8051F34B-GM
Manufacturer Part Number
C8051F34B-GM
Description
IC 8051 MCU 32K FLASH MEM 32-QFN
Manufacturer
Silicon Laboratories Inc
Series
C8051F34xr
Datasheet
1.C8051F349-GQ.pdf
(276 pages)
Specifications of C8051F34B-GM
Program Memory Type
FLASH
Program Memory Size
32KB (32K x 8)
Package / Case
32-QFN
Core Processor
8051
Core Size
8-Bit
Speed
48MHz
Connectivity
SMBus (2-Wire/I²C), SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
25
Ram Size
2.25K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 17x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
C8051F3x
Core
8051
Data Bus Width
8 bit
Data Ram Size
2304 B
Interface Type
I2C, SPI, UART
Maximum Clock Frequency
25 MHz
Number Of Programmable I/os
25
Number Of Timers
4
Operating Supply Voltage
2.7 V to 5.25 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
KSK-SL-F34X, KSK-SL-TOOLSTICK, PK51, CA51, A51, ULINK2
Development Tools By Supplier
C8051F340DK
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
336-1748 - ADAPTER TOOLSTICK FOR C8051F34X
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1351-5
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F34B-GM
Manufacturer:
Silicon Labs
Quantity:
135
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C8051F340/1/2/3/4/5/6/7/8/9/A/B/C/D
5.3.2. Tracking Modes
The AD0TM bit in register ADC0CN controls the ADC0 track-and-hold mode. In its default state, the ADC0
input is continuously tracked, except when a conversion is in progress. When the AD0TM bit is logic 1,
ADC0 operates in low-power track-and-hold mode. In this mode, each conversion is preceded by a track-
ing period of 3 SAR clocks (after the start-of-conversion signal). When the CNVSTR signal is used to initi-
ate conversions in low-power tracking mode, ADC0 tracks only when CNVSTR is low; conversion begins
on the rising edge of CNVSTR (see Figure 5.4). Tracking can also be disabled (shutdown) when the device
is in low power standby or sleep modes. Low-power track-and-hold mode is also useful when AMUX set-
tings are frequently changed, due to the settling time requirements described in
Time Requirements” on page
46
(AD0CM[2:0]=000, 001,010
Timer 1, Timer 3 Overflow
Write '1' to AD0BUSY,
(AD0CM[2:0]=100)
Timer 0, Timer 2,
Figure 5.4. 10-Bit ADC Track and Conversion Example Timing
SAR Clocks
SAR Clocks
SAR Clocks
AD0TM=1
AD0TM=0
011, 101)
AD0TM=1
AD0TM=0
CNVSTR
47.
Low Power
or Convert
Low Power
or Convert
Track or
Convert
A. ADC0 Timing for External Trigger Source
Track or Convert
B. ADC0 Timing for Internal Trigger Source
1
1
Track
2
2
Track
Rev. 1.3
3
3
4
4
1
Convert
5
5
2
6
6
3
7
7
4
8
Convert
8
Convert
Convert
5
9
9
6
10 11 12
10 11
7
8
9
13 14
Section “5.3.3. Settling
10 11
Low Power Mode
Track
Low Power
Mode
Track
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