MC68HC908MR8CP Freescale Semiconductor, MC68HC908MR8CP Datasheet - Page 60

• Manufacturer Part Number: MC68HC908MR8CP
• Description: IC MCU 8K FLASH 8MHZ PWM 28-DIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908MR8CP

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 12
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

FLASH Memory
4.3 FLASH Programming Algorithm
Technical Data
60
NOTE:
The time between each FLASH address change, or the time between
the last FLASH address programmed to clear the PGM bit, must not
exceed the maximum programming time, t
Programming and erasing of FLASH locations cannot be performed by
code being executed from the FLASH memory. While these operations
must be performed in the order shown, other unrelated operations may
occur between the steps. Do not exceed t
Memory
Refer to
FLASH memory.
10. Clear the PGM bit.
11. Wait for a time, t
12. Clear the HVEN bit.
13. After a time, t
4. Wait for a time, t
5. Set the HVEN bit.
6. Wait for a time, t
7. Write data to the FLASH address to be programmed.
8. Wait for a time, t
9. Repeat step 7 and step 8 until all the bytes within the row are
address range desired.
programmed.
read mode again.
Figure 4-2
Characteristics.
FLASH Memory
RCV
for an algorithm for programming a row (32 bytes) of
NVS
PGS
PROG
NVH
(typically 1 µs), the memory can be accessed in
(minimum of 10 µs).
(minimum of 5 µs).
(minimum of 5 µs).
(minimum of 30 µs).
PROG
PROG
MC68HC908MR8 — Rev 4.1
.
maximum. See
Freescale Semiconductor
21.7