C8051F351 Silicon Laboratories Inc, C8051F351 Datasheet - Page 21

• Manufacturer Part Number: C8051F351
• Description: IC 8051 MCU 8K FLASH 28MLP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F35xr

Specifications of C8051F351

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 50MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: POR, PWM, Temp Sensor, WDT
• Number Of I /o: 17
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x24b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

1.3.
The CIP-51 has a standard 8051 program and data address configuration. It includes 256 bytes of data
RAM, with the upper 128 bytes dual-mapped. Indirect addressing accesses the upper 128 bytes of general
purpose RAM, and direct addressing accesses the 128 byte SFR address space. The lower 128 bytes of
RAM are accessible via direct and indirect addressing. The first 32 bytes are addressable as four banks of
general purpose registers, and the next 16 bytes can be byte addressable or bit addressable.
Program memory consists of 8 kB bytes of FLASH. This memory may be reprogrammed in-system in 512
byte sectors, and requires no special off-chip programming voltage.
0x1DFF
0x1FFF
0x1E00
0x0000
On-Chip Memory
PROGRAM/DATA MEMORY
Programmable in 512
Byte Sectors)
RESERVED
(In-System
8K FLASH
(FLASH)
Figure 1.6. Memory Map
0xFFFF
0x01FF
0x0200
0x0000
0xFF
0x7F
0x2F
0x1F
0x80
0x30
0x20
0x00
0x0000 to 0x01FF, wrapped
XRAM - 512 Bytes
(accessable using MOVX
Same 512 bytes as from
Rev. 0.4
(Indirect Addressing
on 512-byte boundaries
(Direct and Indirect
EXTERNAL DATA ADDRESS SPACE
INTERNAL DATA ADDRESS SPACE
General Purpose
Upper 128 RAM
Bit Addressable
Addressing)
instruction)
Registers
Only)
DATA MEMORY (RAM)
C8051F350/1/2/3
(Direct Addressing Only)
Special Function
Lower 128 RAM
(Direct and Indirect
Addressing)
Register's
21