C8051F352-GQR Silicon Laboratories Inc, C8051F352-GQR Datasheet - Page 125

IC 8051 MCU 8K FLASH 32LQFP

C8051F352-GQR

Manufacturer Part Number
C8051F352-GQR
Description
IC 8051 MCU 8K FLASH 32LQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F35xr
Datasheets

Specifications of C8051F352-GQR

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 8x16b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-LQFP
Core
8051
Processor Series
C8051F3x
Data Bus Width
8 bit
Maximum Clock Frequency
50 MHz
Data Ram Size
768 B
Data Rom Size
128 B
On-chip Adc
Yes
Number Of Programmable I/os
17
Number Of Timers
4 bit
Operating Supply Voltage
2.7 V to 3.6 V
Mounting Style
SMD/SMT
A/d Bit Size
16 bit
A/d Channels Available
8
Height
1.4 mm
Interface Type
I2C, SMBus, SPI, UART
Length
7 mm
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Supply Voltage (max)
3.6 V
Supply Voltage (min)
2.7 V
Width
7 mm
For Use With
336-1083 - DEV KIT FOR F350/351/352/353
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
 Details

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
C8051F352-GQR
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
Part Number:
C8051F352-GQR..
Manufacturer:
SILICON
Quantity:
15 000
Bits7–2: UNUSED: Read = 000000b, Write = don’t care.
Bit1:
Bit0:
Bits7–0: FLKEY: Flash Lock and Key Register
R/W
Bit7
Bit7
R
PSEE: Program Store Erase Enable
Setting this bit (in combination with PSWE) allows an entire page of Flash program memory
to be erased. If this bit is logic 1 and Flash writes are enabled (PSWE is logic 1), a write to
Flash memory using the MOVX instruction will erase the entire page that contains the loca-
tion addressed by the MOVX instruction. The value of the data byte written does not matter.
0: Flash program memory erasure disabled.
1: Flash program memory erasure enabled.
PSWE: Program Store Write Enable
Setting this bit allows writing a byte of data to the Flash program memory using the MOVX
write instruction. The Flash location should be erased before writing data.
0: Writes to Flash program memory disabled.
1: Writes to Flash program memory enabled; the MOVX write instruction targets Flash
memory.
Write:
This register provides a lock and key function for Flash erasures and writes. Flash writes
and erases are enabled by writing 0xA5 followed by 0xF1 to the FLKEY register. Flash
writes and erases are automatically disabled after the next write or erase is complete. If any
writes to FLKEY are performed incorrectly, or if a Flash write or erase operation is attempted
while these operations are disabled, the Flash will be permanently locked from writes or era-
sures until the next device reset. If an application never writes to Flash, it can intentionally
lock the Flash by writing a non-0xA5 value to FLKEY from software.
Read:
When read, bits 1–0 indicate the current Flash lock state.
00: Flash is write/erase locked.
01: The first key code has been written (0xA5).
10: Flash is unlocked (writes/erases allowed).
11: Flash writes/erases disabled until the next reset.
SFR Definition 15.1. PSCTL: Program Store R/W Control
R/W
Bit6
Bit6
R
SFR Definition 15.2. FLKEY: Flash Lock and Key
R/W
Bit5
Bit5
R
R/W
Bit4
Bit4
R
Rev. 1.1
R/W
Bit3
Bit3
R
R/W
Bit2
Bit2
R
C8051F350/1/2/3
PSEE
R/W
R/W
Bit1
Bit1
SFR Address:
SFR Address:
PSWE
R/W
R/W
Bit0
Bit0
0x8F
0xB7
00000000
00000000
Reset Value
Reset Value
125

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