C8051F340-GQR Silicon Laboratories Inc, C8051F340-GQR Datasheet - Page 113

• Manufacturer Part Number: C8051F340-GQR
• Description: MCU 8-Bit C8051F34x 8051 CISC 64KB Flash 3.3V/5V 48-Pin TQFP T/R
• Manufacturer: Silicon Laboratories Inc

Specifications of C8051F340-GQR

• Package: 48TQFP
• Device Core: 8051
• Family Name: C8051F34x
• Maximum Speed: 48 MHz
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 40
• Interface Type: I2C/SMBus/SPI/UART/USB
• On-chip Adc: 17-chx10-bit
• Number Of Timers: 4
• Ram Size: 4.25 KB
• Program Memory Size: 64 KB
• Program Memory Type: Flash
• Operating Temperature: -40 to 85 °C

Bits7:
Bits6–5: RESERVED. Read = 00b. Must Write 00b.
Bit 4:
Bits3–0: RESERVED. Read = 0000b. Must Write 0000b.
FOSE
R/W
Bit7
FOSE: Flash One-shot Enable
This bit enables the Flash read one-shot. When the Flash one-shot disabled, the Flash
sense amps are enabled for a full clock cycle during Flash reads. At system clock frequen-
cies below 10 MHz, disabling the Flash one-shot will increase system power consumption.
0: Flash one-shot disabled.
1: Flash one-shot enabled.
FLRT: FLASH Read Time.
This bit should be programmed to the smallest allowed value, according to the system clock
speed.
0: SYSCLK <= 25 MHz.
1: SYSCLK <= 48 MHz.
Reserved Reserved
R/W
Bit6
SFR Definition 12.3. FLSCL: Flash Scale
R/W
Bit5
C8051F340/1/2/3/4/5/6/7/8/9/A/B/C/D
FLRT
R/W
Bit4
Reserved Reserved Reserved Reserved 10000000
Rev. 1.3
R/W
Bit3
R/W
Bit2
R/W
Bit1
R/W
Bit0
SFR Address:
Reset Value
0xB6
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