MCF52236AF50A Freescale Semiconductor, MCF52236AF50A Datasheet - Page 31

• Manufacturer Part Number: MCF52236AF50A
• Description: 32-bit Microcontrollers - MCU KIRIN2E EPP - REVA
• Manufacturer: Freescale Semiconductor

Specifications of MCF52236AF50A

• Core: ColdFire V2
• Processor Series: MCF52235
• Data Bus Width: 32 bit
• Maximum Clock Frequency: 50 MHz
• Program Memory Size: 256 KB
• Data Ram Size: 32 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 3 V to 3.6 V
• Operating Temperature Range: 0 C to + 70 C
• Package / Case: LQFP-80
• Mounting Style: SMD/SMT
• A/d Bit Size: 10 bit, 12 bit
• A/d Channels Available: 8
• Interface Type: I2C, QSPI, UART
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Number Of Programmable I/os: 56
• Number Of Timers: 4
• Program Memory Type: Flash
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 3 V

The average chip-junction temperature (T
where
For most applications, PI/O < P
Solving equations 1 and 2 for K gives:
where K is a constant pertaining to the particular part. K can be determined from
for a known T
for any value of T
2.2
Freescale Semiconductor
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1
ESD target for Human Body Model
ESD target for Charged Device Model
HBM circuit description
Number of pulses per pin (HBM)
positive pulses
negative pulses
Number of pulses per pin (CDM)
positive pulses
negative pulses
Interval of pulses (HBM)
Interval of pulses (CDM)
T

P
P
P
A device is defined as a failure if the device no longer meets the device specification requirements after
exposure to ESD pulses. Complete DC parametric and functional testing is performed per applicable device
specification at room temperature followed by hot temperature, unless specified otherwise in the device
specification.
A
D
INT
I/O
JMA
ESD Protection
= ambient temperature, C
= P
= power dissipation on input and output pins — user determined
A
= chip internal power, I
. Using this value of K, the values of P
= package thermal resistance, junction-to-ambient, C/W
INT
A
.
+ P
I/O
Characteristic
INT
MCF52235 ColdFire Microcontroller Data Sheet, Rev. 10
and can be ignored. An approximate relationship between P
DD
Table 21. ESD Protection Characteristics
K
 V
J
=
) in C can be obtained from
P
DD
D
P
T
, watts
J
D

=

=
T
A
D
T
K
A
+
and T

+
273C


Symbol
T
R
P
HBM
CDM
J
J
series
D
—
—
—
—
—
—
can be obtained by solving
C
+


273C

+
JMA

JMA


1500 (ADC and EPHY pins)

2000 (All other pins)
P
D
2
Equation 3
Value
1500
250
100
1.0
0.2
1
1
3
3
1
Equation 1
by measuring P
D
and T
Electrical Characteristics
and
J
(if P
Equation 2
Units
ohms
I/O
D
sec
sec
pF
—
—
V
V
(at equilibrium)
is neglected) is:
iteratively
Eqn. 1
Eqn. 2
Eqn. 3
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