MC9S08LH64 Datasheet, PDF (42/44 Pages) Freescale Semiconductor, Inc – Advanced Information

EMC Performance
Table 22. Flash Characteristics (continued)
#
C
Characteristic
Symbol
Min
Typical
Max
Unit
7
P Page erase time²
t_Page
4000
t_Fcyc
8
P Mass erase time²
t_Mass
20,000
t_Fcyc
9
D Byte program current³
R_IDDBP
—
4
—
mA
1 _{The frequency of this clock is controlled by a software setting.}
2 _{These values are hardware state machine controlled. User code does not need to count cycles. This information supplied for}
calculating approximate time to program and erase.
3 _{The program and erase currents are additional to the standard run IDD. These values are measured at room temperatures with}
V_DD = 3.0 V, bus frequency = 4.0 MHz.
3.16 EMC Performance
Electromagnetic compatibility (EMC) performance is highly dependant on the environment in which the
MCU resides. Board design and layout, circuit topology choices, location and characteristics of external
components as well as MCU software operation all play a significant role in EMC performance. The
system designer should consult Freescale applications notes such as AN2321, AN1050, AN1263,
AN2764, and AN1259 for advice and guidance specifically targeted at optimizing EMC performance.
3.16.1 Radiated Emissions
Microcontroller radiated RF emissions are measured from 150 kHz to 1 GHz using the TEM/GTEM Cell
method in accordance with the IEC 61967-2 and SAE J1752/3 standards. The measurement is performed
with the microcontroller installed on a custom EMC evaluation board while running specialized EMC test
software. The radiated emissions from the microcontroller are measured in a TEM cell in two package
orientations (North and East).
4 Ordering Information
This appendix contains ordering information for the device numbering system.
Table 23. Device Numbering System
Device Number¹
Memory
Flash
RAM
Available Packages²
MC9S08LH64
64 KB
64 KB
4000
4000
80-pin LQFP
64-pin LQFP
MC9S08LH36
36 KB
36 KB
4000
4000
80-pin LQFP
64-pin LQFP
1 _{See Table 1 for a complete description of modules included on each device.}
2 _{See Table 24 for package information.}
4.1 Device Numbering System
Example of the device numbering system:
MC9S08LH64 Series MCU Data Sheet, Rev. 4
42
PRELIMINARY-SUBJECT TO CHANGE WITHOUT NOTICE
Freescale Semiconductor