MC9S08DZ48AMLF Freescale Semiconductor, MC9S08DZ48AMLF Datasheet - Page 187
![MCU 8BIT 48K FLASH EE 48-LQFP](/photos/37/62/376254/lqfp-48_sml.jpg)
MC9S08DZ48AMLF
Manufacturer Part Number
MC9S08DZ48AMLF
Description
MCU 8BIT 48K FLASH EE 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HCS08r
Datasheets
1.DEMO9S08DZ60.pdf
(416 pages)
2.EVB9S08DZ60.pdf
(4 pages)
3.MC9S08DZ48AMLF.pdf
(458 pages)
Specifications of MC9S08DZ48AMLF
Core Processor
HCS08
Core Size
8-Bit
Speed
40MHz
Connectivity
CAN, I²C, LIN, SCI, SPI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
39
Program Memory Size
48KB (48K x 8)
Program Memory Type
FLASH
Eeprom Size
1.5K x 8
Ram Size
3K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 16x12b
Oscillator Type
External
Operating Temperature
-40°C ~ 125°C
Package / Case
48-LQFP
Processor Series
S08DZ
Core
HCS08
Data Bus Width
8 bit
Data Ram Size
3 KB
Interface Type
CAN, I2C, SCI, SPI
Number Of Programmable I/os
40
Number Of Timers
2
Operating Supply Voltage
5.5 V
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWS08
Development Tools By Supplier
DEMO9S08DZ60
Minimum Operating Temperature
- 40 C
On-chip Adc
12 bit, 16 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC9S08DZ48AMLF
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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reference can achieve a high-range maximum DCO output of 39.85 MHz with a multiplier of 1216. When
the DRS bit is clear, the 32.768 kHz reference can achieve a mid-range maximum DCO output of 19.92
MHz with a multiplier of 608.
In FBI and FEI modes, setting the DMX32 bit is not recommended. If the internal reference is trimmed to
a frequency above 32.768 kHz, the greater FLL multiplication factor could potentially push the
microcontroller system clock out of specification and damage the part.
8.5.3
When switching between operational modes of the MCG, certain configuration bits must be changed in
order to properly move from one mode to another. Each time any of these bits are changed (PLLS, IREFS,
CLKS, or EREFS), the corresponding bits in the MCGSC register (PLLST, IREFST, CLKST, or
OSCINIT) must be checked before moving on in the application software.
Additionally, care must be taken to ensure that the reference clock divider (RDIV) is set properly for the
mode being switched to. For instance, in PEE mode, if using a 4 MHz crystal, RDIV must be set to %001
(divide-by-2) or %010 (divide -by-4) in order to divide the external reference down to the required
frequency between 1 and 2 MHz.
If switching to FBE or FEE mode, first setting the DIV32 bit will ensure a proper reference frequency is
sent to the FLL clock at all times.
In FBE, FEE, FBI, and FEI modes, at any time, the application can switch the FLL multiplication factor
between 1024 and 512 with the DRS bit in MCGT. Writes to DRS will be ignored if LP=1 or PLLS=1.
The RDIV and IREFS bits should always be set properly before changing the PLLS bit so that the FLL or
PLL clock has an appropriate reference clock frequency to switch to. The table below shows MCGOUT
frequency calculations using RDIV, BDIV, and VDIV settings for each clock mode. The bus frequency is
equal to MCGOUT divided by 2.
Freescale Semiconductor
FEI (FLL engaged internal)
FEE (FLL engaged external)
FBE (FLL bypassed external)
FBI (FLL bypassed internal)
PEE (PLL engaged external)
PBE (PLL bypassed external)
BLPI (Bypassed low power internal)
BLPE (Bypassed low power external)
MCG Mode Switching
Clock Mode
Table 8-10. MCGOUT Frequency Calculation Options
MC9S08DZ128 Series Data Sheet, Rev. 1
(f
(f
f
f
[(f
f
f
f
ext
int
ext
int
ext
int
ext
ext
/ B
/ B
/ B
/ B
/ B
* F ) / B
/ R *F) / B
/ R) * M] / B
f
MCGOUT
1
Chapter 8 Multi-Purpose Clock Generator (S08MCGV2)
Typical f
immediately after reset.
f
31.25 kHz to 39.0625 kHz
f
31.25 kHz to 39.0625 kHz
Typical f
f
MHz to 2 MHz
f
MHz to 2 MHz
ext
ext
ext
ext
/ R must be in the range of
/ R must be in the range of
/ R must be in the range of 1
/ R must be in the range of 1
MCGOUT
int
= 32 kHz
Note
= 16 MHz
187
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