MCF5232 ETC, MCF5232 Datasheet - Page 38

• Manufacturer Part Number: MCF5232
• Description: Integrated Microprocessor Hardware Specification
• Manufacturer: ETC

Preliminary Electrical Characteristics
6.4
38
NOTES:
1
2
3
4
5
6
7
8
Load Capacitance
Core Operating Supply Current
Pad Operating Supply Current
DC Injection Current
Low drive strength
High drive strength
Master Mode
Master Mode
Low Power Modes
Single Pin Limit
Total processor Limit, Includes sum of all stressed pins
Refer to Table 29 for additional PLL specifications.
Refer to the MCF5235 signals section for pins having weak internal pull-up devices.
This parameter is characterized before qualification rather than 100% tested.
pF load ratings are based on DC loading and are provided as an indication of driver strength. High speed interfaces
require transmission line analysis to determine proper drive strength and termination. See High Speed Signal
Propagation: Advanced Black Magic by Howard W. Johnson for design guidelines.
Current measured at maximum system clock frequency, all modules active, and default drive strength with matching
load.
All functional non-supply pins are internally clamped to V
Input must be current limited to the value specified. To determine the value of the required current-limiting resistor,
calculate resistance values for positive and negative clamp voltages, then use the larger of the two values.
Power supply must maintain regulation within operating V
current conditions. If positive injection current (V
and could result in external power supply going out of regulation. Insure external V
than maximum injection current. This will be the greatest risk when the processor is not consuming power. Examples
are: if no system clock is present, or if clock rate is very low which would reduce overall power consumption. Also, at
power-up, system clock is not present during the power-up sequence until the PLL has attained lock.
V
NEGCLAMP
Num
Oscillator and PLLMRFM Electrical Characteristics
1
2
3
4
=V
PLL Reference Frequency Range
Core frequency
CLKOUT Frequency
Loss of Reference Frequency
Self Clocked Mode Frequency
External reference
On-Chip PLL Frequency
4
SS
Crystal reference
External reference
1:1 mode (NOTE: f
– 0.3 V, V
3, 6, 7, 8
MCF523x Integrated Microprocessor Hardware Specification, Rev. 1.3
Characteristic
Table 29. HiP7 PLLMRFM Electrical Specifications
Characteristic
POSCLAMP
5
Table 28. DC Electrical Specifications
2
sys/2
= V
= 2 × f
DD
3, 5
4, 5
+ 0.3
ref_1:1
in
> V
Preliminary
)
DD
) is greater than I
SS
DD
and their respective V
f
range during instantaneous and operating maximum
Symbol
ref_crystal
f
f
ref_1:1
ref_ext
f
f
f
sys/2
f
SCM
LOR
sys
Symbol
OI
I
C
I
DD
DD
IC
DD
L
f
, the injection current may flow out of V
ref
Value
Min.
TBD
100
24
8
8
0
÷ 32
1
DD
DD
.
–1.0
Min
–10
load will shunt current greater
—
—
—
1
Value
Max.
1000
TBD
150
25
25
75
75
75
Freescale Semiconductor
TBD
TBD
TBD
Max
1.0
25
50
10
MHz
MHz
MHz
MHz
MHz
Unit
kHz
Unit
mA
mA
mA
pF
µA
DD