M52221DEMO Freescale Semiconductor, M52221DEMO Datasheet - Page 31

• Manufacturer Part Number: M52221DEMO
• Description: BOARD DEMO FOR MCF52221
• Manufacturer: Freescale Semiconductor
• Series: ColdFire®r
• Type: MPUr

Specifications of M52221DEMO

• Contents: SBC, Cables and Software
• Processor To Be Evaluated: MCF52221
• Data Bus Width: 32 bit
• Interface Type: RS-232, USB
• Silicon Manufacturer: Freescale
• Core Architecture: Coldfire
• Core Sub-architecture: Coldfire V2
• Silicon Core Number: MCF52
• Silicon Family Name: MCF5222x
• Rohs Compliant: Yes
• For Use With/related Products: MCF52221
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2.4
The flash memory characteristics are shown in
Freescale Semiconductor
1
2
System clock (read only)
System clock (program/erase)
6
The average chip-junction temperature (T
Where:
For most applications P
Solving equations 1 and 2 for K gives:
where K is a constant pertaining to the particular part. K can be determined from equation (3) by measuring P
for a known T
any value of T
Depending on packaging; see
Refer to the flash memory section for more information
Thermal characterization parameter indicating the temperature difference between package top and the junction
temperature per JEDEC JESD51-2. When Greek letters are not available, the thermal characterization parameter is written
in conformance with Psi-JT.
1
2
Maximum number of guaranteed program/erase cycles
Data retention at average operating temperature of 85°C
A program/erase cycle is defined as switching the bits from 1 → 0 → 1.
Reprogramming of a flash memory array block prior to erase is not required.
Flash Memory Characteristics
T
Θ
P
P
P
A
D
INT
I/O
JA
A
A
. Using this value of K, the values of P
.
Parameter
= ambient temperature, °C
= package thermal resistance, junction-to-ambient, °C/W
= P
= chip internal power, I
= power dissipation on input and output pins — user determined, watts
I/O
INT
< P
Table 23. SGFM Flash Program and Erase Characteristics
+ P
INT
K = P
2
Table 24. SGFM Flash Module Life Characteristics
I/O
Table
and can be ignored. An approximate relationship between P
Parameter
D
× (T
.
MCF52223 ColdFire Microcontroller, Rev. 2
J
A
) in °C can be obtained from:
+ 273 °C) + Θ
P
DD
T
Table 23
D
J
× V
=
=
K
T
(V
(V
DD
A
D
÷
DDF
DDF
+
, watts
and T
Symbol
(
f
and
sys(P/E)
f
T
(
sys(R)
P
J
JMA
= 2.7 to 3.6 V)
= 2.7 to 3.6 V)
1
+
D
Table
before failure
J
273°C
×
can be obtained by solving equations (1) and (2) iteratively for
× P
Θ
JMA
D
24.
)
2
)
(1)
(2)
(3)
0.15
Min
0
Retention
Symbol
P/E
Typ
—
—
D
and T
Electrical Characteristics
66.67 or 80
66.67 or 80
10,000
J
Value
(if P
10
Max
I/O
2
D
is neglected) is:
(at equilibrium)
1
1
Cycles
Years
Unit
MHz
MHz
Unit
31