MCR908JK3MDWE Freescale Semiconductor, MCR908JK3MDWE Datasheet - Page 42

• Manufacturer Part Number: MCR908JK3MDWE
• Description: IC MCU 4K FLASH 20-SOIC
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MCR908JK3MDWE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Peripherals: LED, LVD, POR, PWM
• Number Of I /o: 15
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 12x8b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 20-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Connectivity: -

FLASH Memory (FLASH)
4.6 FLASH Mass Erase Operation
Technical Data
42
NOTE:
NOTE:
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 as shown, but other unrelated operations
may occur between the steps.
Use the following procedure to erase the entire FLASH memory:
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 as shown, but other unrelated operations
may occur between the steps.
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
1. Set both the ERASE bit and the MASS bit in the FLASH Control
2. Write any data to any FLASH location within the FLASH memory
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
again.
Register.
address range.
again.
FLASH Memory (FLASH)
rcv
rcv
(1µs)
(1µs)
ERASE
ERASE
nvh
nvs
nvh1
,
,
(10µs).
(5µs).
the memory can be accessed in read mode
the memory can be accessed in read mode
(100µs).
(1ms).
(4ms).
MC68H(R)C908JL3
Freescale Semiconductor
—
Rev. 1.1