C8051F346-GQ Silicon Laboratories Inc, C8051F346-GQ Datasheet - Page 77
![IC 8051 MCU FLASH 64K 32LQFP](/photos/12/18/121867/c8051f346-gq_sml.jpg)
C8051F346-GQ
Manufacturer Part Number
C8051F346-GQ
Description
IC 8051 MCU FLASH 64K 32LQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F34xr
Datasheets
1.C8051F349-GQ.pdf
(276 pages)
2.C8051F346-GQ.pdf
(1 pages)
3.C8051F347-GQ.pdf
(296 pages)
Specifications of C8051F346-GQ
Program Memory Type
FLASH
Program Memory Size
64KB (64K x 8)
Package / Case
32-LQFP
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
25
Ram Size
4.25K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 21x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
C8051F3x
Core
8051
Data Bus Width
8 bit
Data Ram Size
5.25 KB
Interface Type
I2C/SMBus/SPI/UART/USB
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
17-ch x 10-bit
No. Of I/o's
25
Ram Memory Size
4352Byte
Cpu Speed
25MHz
No. Of Timers
4
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
336-1748 - ADAPTER TOOLSTICK FOR C8051F34X770-1006 - ISP 4PORT FOR SILABS C8051F MCU
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1304
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8.
C8051F340/1/2/3/4/5/6/7/8/9 devices include a voltage regulator (REG0). When enabled, the REG0 output
appears on the V
software using bit REGEN in register REG0CN. See Table 8.1 for REG0 electrical characteristics.
Note that the VBUS signal must be connected to the VBUS pin when using the device in a USB network.
The VBUS signal should only be connected to the REGIN pin when operating the device as a bus-powered
function. REG0 configuration options are shown in Figure 8.1–Figure 8.4.
8.1.
REG0 offers a low power mode intended for use when the device is in suspend mode. In this low power
mode, the REG0 output remains as specified; however the REG0 dynamic performance (response time) is
degraded. See Table 8.1 for normal and low power mode supply current specifications. The REG0 mode
selection is controlled via the REGMOD bit in register REG0CN.
8.2.
When the USB Function Controller is used (see section
(USB0)” on page
REG0CN) indicates the current logic level of the VBUS signal. If enabled, a VBUS interrupt will be gener-
ated when the VBUS signal matches the polarity selected by the VBPOL bit in register REG0CN. The
VBUS interrupt is level-sensitive, and has no associated interrupt pending flag. The VBUS interrupt will be
active as long as the VBUS signal matches the polarity selected by VBPOL. See Table 8.1 for VBUS input
parameters.
Important Note: When USB is selected as a reset source, a system reset will be generated when the
VBUS signal matches the polarity selected by the VBPOL bit. See
page 111
–40 to +85 °C unless otherwise specified.
Input Voltage Range
Output Voltage (V
Output Current
VBUS Detection Input Low Voltage
VBUS Detection Input High Voltage
Bias Current
Dropout Voltage (V
Notes:
1. Input range specified for regulation. When an external regulator is used, should be tied to
2. Output current is total regulator output, including any current required by the C8051F34x.
3. The minimum input voltage is 2.70 V or VDD + V
Voltage Regulator (REG0)
Regulator Mode Selection
VBUS Detection
for details on selecting USB as a reset source
Parameter
2
DD
DD
175), the VBUS signal should be connected to the VBUS pin. The VBSTAT bit (register
Table 8.1. Voltage Regulator Electrical Specifications
DO
1
)
pin and can be used to power external devices. REG0 can be enabled/disabled by
2
)
3
Output Current = 1 to 100 mA
Normal Mode (REGMOD = ‘0’)
Low Power Mode (REGMOD = ‘1’)
Conditions
C8051F340/1/2/3/4/5/6/7/8/9
Rev. 1.1
DO
(max load), whichever is greater.
Section “16. Universal Serial Bus Controller
Section “11. Reset Sources” on
Min
2.7
3.0
3.0
Typ
3.3
65
35
1
V
DD
Max
5.25
100
111
3.6
1.0
61
.
mV/mA
Units
mA
µA
V
V
V
V
77
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