C8051F343-GQ Silicon Laboratories Inc, C8051F343-GQ Datasheet - Page 168
![IC 8051 MCU FLASH 32K 32LQFP](/photos/12/37/123738/c8051f343-gq_sml.jpg)
C8051F343-GQ
Manufacturer Part Number
C8051F343-GQ
Description
IC 8051 MCU FLASH 32K 32LQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F34xr
Specifications of C8051F343-GQ
Program Memory Type
FLASH
Program Memory Size
32KB (32K x 8)
Package / Case
32-LQFP
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 21x10b
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, SMBus, SPI, UART, USB
Maximum Clock Frequency
48 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, 17 Channel
Package
32LQFP
Device Core
8051
Family Name
C8051F34x
Maximum Speed
48 MHz
Data Rom Size
128 B
A/d Bit Size
10 bit
A/d Channels Available
17
Height
1.4 mm
Length
7 mm
Supply Voltage (max)
3.6 V
Supply Voltage (min)
2.7 V
Width
7 mm
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
336-1301
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F343-GQ
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
Company:
Part Number:
C8051F343-GQR
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
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C8051F340/1/2/3/4/5/6/7/8/9/A/B/C/D
16.5.2. FIFO Double Buffering
FIFO slots for Endpoints1-3 can be configured for double-buffered mode. In this mode, the maximum
packet size is halved and the FIFO may contain two packets at a time. This mode is available for
Endpoints1-3. When an endpoint is configured for Split Mode, double buffering may be enabled for the IN
Endpoint and/or the OUT endpoint. When Split Mode is not enabled, double-buffering may be enabled for
the entire endpoint FIFO. See Table 16.3 for a list of maximum packet sizes for each FIFO configuration.
16.5.1. FIFO Access
Each endpoint FIFO is accessed through a corresponding FIFOn register. A read of an endpoint FIFOn
register unloads one byte from the FIFO; a write of an endpoint FIFOn register loads one byte into the end-
point FIFO. When an endpoint FIFO is configured for Split Mode, a read of the endpoint FIFOn register
unloads one byte from the OUT endpoint FIFO; a write of the endpoint FIFOn register loads one byte into
the IN endpoint FIFO.
168
Endpoint
Number
R/W
Bit7
0
1
2
3
USB Register Definition 16.6. FIFOn: USB0 Endpoint FIFO Access
USB Addresses 0x20–0x23 provide access to the 4 pairs of endpoint FIFOs:
Writing to the FIFO address loads data into the IN FIFO for the corresponding endpoint.
Reading from the FIFO address unloads data from the OUT FIFO for the corresponding
endpoint.
IN/OUT Endpoint FIFO
R/W
Bit6
Split Mode
Enabled?
N/A
N
Y
N
Y
N
Y
0
1
2
3
R/W
Bit5
Table 16.3. FIFO Configurations
Maximum IN Packet Size (Dou-
ble Buffer Disabled / Enabled)
R/W
Bit4
FIFODATA
USB Address
0x20
0x21
0x22
0x23
256 / 128
128 / 64
Rev. 1.3
64 / 32
R/W
Bit3
R/W
Bit2
256 / 128
512 / 256
128 / 64
64
R/W
Bit1
Maximum OUT Packet Size
(Double Buffer Disabled /
Enabled)
256 / 128
128 / 64
64 / 32
R/W
Bit0
0x20 - 0x23
USB Address:
00000000
Reset Value
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