MC9S08AC8MFJE Freescale Semiconductor, MC9S08AC8MFJE Datasheet - Page 58
![IC MCU 8BIT 8K FLASH 32-LQFP](/photos/12/33/123395/mc9s08ac8mfje_sml.jpg)
MC9S08AC8MFJE
Manufacturer Part Number
MC9S08AC8MFJE
Description
IC MCU 8BIT 8K FLASH 32-LQFP
Manufacturer
Freescale Semiconductor
Series
HCS08r
Datasheet
1.MC9S08AC8CFGE.pdf
(336 pages)
Specifications of MC9S08AC8MFJE
Core Processor
HCS08
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, SCI, SPI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
22
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 6x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
32-LQFP
Processor Series
S08AC
Core
HCS08
Data Bus Width
8 bit
Data Ram Size
768 B
Interface Type
SCI/SPI
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
22
Number Of Timers
3
Operating Supply Voltage
- 0.3 V to + 5.8 V
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWS08
Development Tools By Supplier
DEMO9S08AC60E, DEMOACEX, DEMOACKIT, DCF51AC256, DC9S08AC128, DC9S08AC16, DC9S08AC60, DEMO51AC256KIT
Minimum Operating Temperature
- 40 C
On-chip Adc
6-ch x 10-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC9S08AC8MFJE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Chapter 4 Memory
4.6.2
During reset, the contents of the nonvolatile location NVOPT are copied from FLASH into FOPT. Bits 5
through 2 are not used and always read 0. This register may be read at any time, but writes have no meaning
or effect. To change the value in this register, erase and reprogram the NVOPT location in FLASH memory
as usual and then issue a new MCU reset.
58
SEC0[1:0]
FNORED
Reset
KEYEN
Field
1:0
7
6
W
R
KEYEN
200 kHz
150 kHz
FLASH Options Register (FOPT and NVOPT)
20 MHz
10 MHz
8 MHz
4 MHz
2 MHz
1 MHz
Backdoor Key Mechanism Enable — When this bit is 0, the backdoor key mechanism cannot be used to
disengage security. The backdoor key mechanism is accessible only from user (secured) firmware. BDM
commands cannot be used to write key comparison values that would unlock the backdoor key. For more detailed
information about the backdoor key mechanism, refer to
0 No backdoor key access allowed.
1 If user firmware writes an 8-byte value that matches the nonvolatile backdoor key (NVBACKKEY through
Vector Redirection Disable — When this bit is 1, then vector redirection is disabled.
0 Vector redirection enabled.
1 Vector redirection disabled.
Security State Code — This 2-bit field determines the security state of the MCU as shown in
the MCU is secure, the contents of RAM and FLASH memory cannot be accessed by instructions from any
unsecured source including the background debug interface. For more detailed information about security, refer
to
f
Bus
7
Section 4.5,
NVBACKKEY+7 in that order), security is temporarily disengaged until the next MCU reset.
= Unimplemented or Reserved
FNORED
(Binary)
“Security.”
PRDIV8
6
1
0
0
0
0
0
0
0
This register is loaded from nonvolatile location NVOPT during reset.
Table 4-8. FOPT Register Field Descriptions
Figure 4-6. FLASH Options Register (FOPT)
Table 4-7. FLASH Clock Divider Settings
MC9S08AC16 Series Data Sheet, Rev. 8
0
5
DIV5:DIV0
(Decimal)
12
49
39
19
9
4
0
0
0
4
Description
192.3 kHz
200 kHz
200 kHz
200 kHz
200 kHz
200 kHz
200 kHz
150 kHz
f
FCLK
Section 4.5,
3
0
“Security.”
Program/Erase Timing Pulse
(5 μs Min, 6.7 μs Max)
2
0
5.2 μs
6.7 μs
5 μs
5 μs
5 μs
5 μs
5 μs
5 μs
Freescale Semiconductor
SEC01
1
Table
4-9. When
SEC00
0
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