MC68HC908SR12CFA Freescale Semiconductor, MC68HC908SR12CFA Datasheet - Page 66
MC68HC908SR12CFA
Manufacturer Part Number
MC68HC908SR12CFA
Description
MICROCONTROLLER 48 PIN
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908SR12MFAE.pdf
(404 pages)
Specifications of MC68HC908SR12CFA
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, SCI
Peripherals
LVD, POR, PWM, Temp Sensor
Number Of I /o
31
Program Memory Size
12KB (12K x 8)
Program Memory Type
FLASH
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 14x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Other names
Q1145673
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MC68HC908SR12CFA
Manufacturer:
MOTOROLA/摩托罗拉
Quantity:
20 000
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FLASH Memory
4.5 FLASH Page Erase Operation
Data Sheet
66
NOTE:
Use the following procedure to erase a page of FLASH memory. A page
consists of 128 consecutive bytes starting from addresses $xx00 or
$xx80. The 38-byte user interrupt vectors area also forms a page. The
38-byte user interrupt vectors cannot be erased by the page erase
operation because of security reasons. Mass erase is required to erase
this page.
Programming and erasing of FLASH locations cannot be performed by
executing code from the FLASH memory; the code must be executed
from RAM. While these operations must be performed in the order as
shown, but other unrelated operations may occur between the steps.
1. Set the ERASE bit and clear the MASS bit in the FLASH control
2. Write any data to any FLASH address within the page address
3. Wait for a time, t
4. Set the HVEN bit.
5. Wait for a time, t
6. Clear the ERASE bit.
7. Wait for a time, t
8. Clear the HVEN bit.
9. After time, t
register.
range desired.
mode.
FLASH Memory
rcv
(1µs), the memory can be accessed again in read
nvs
Erase
nvh
(10µs).
(5µs).
(1ms).
MC68HC908SR12•MC68HC08SR12 — Rev. 5.0
Freescale Semiconductor
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