C8051F700-GQR Silicon Laboratories Inc, C8051F700-GQR Datasheet - Page 159

• Manufacturer Part Number: C8051F700-GQR
• Description: MCU 8-Bit C8051F70x 8051 CISC 15KB Flash 1.8V/3V 64-Pin TQFP T/R
• Manufacturer: Silicon Laboratories Inc

Specifications of C8051F700-GQR

• Package: 64TQFP
• Device Core: 8051
• Family Name: C8051F70x
• Maximum Speed: 25 MHz
• Ram Size: 512 Byte
• Program Memory Size: 15 KB
• Operating Supply Voltage: 1.8|3 V
• Data Bus Width: 8 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 54
• Interface Type: I2C/SMBus/SPI/UART
• On-chip Adc: 16-chx10-bit
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 4

SFR Definition 23.4. EEKEY: EEPROM Protect Key
SFR Address = 0xC6; SFR Page = F
Name
Reset
Bit
7:0
1:0
Type
Bit
EEPSTATE
EEKEY
Name
7
0
EEPROM Key.
Protects the EEPROM from
inadvertent writes and
erases.
EEPROM Protection State.
These bytes show whether
Flash writes/erases have
been enabled, disabled, or
locked.
6
0
Description
5
0
EEKEY
W
Rev. 1.0
4
0
The sequence 0x55
0xAA must be written to
enable EEPROM writes
and erases
3
0
Write
C8051F70x/71x
2
0
00: Write/Erase is not
enabled
01: The first key has
been written
10: Write/Erase is
enabled
11: EEPROM is locked
from further
writes/erases
EEPSTATE/EEKEY
1
0
Read
R/W
0
0
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