Electrical Characteristics
2
3
4
5
6
For maximum flash performance, this should be set to 0b11.
For maximum flash performance, this should be set to 0b110.
For maximum flash performance, this should be set to 0b1.
This setting allows for 100 MHz system clock with 2% frequency modulation.
This setting allows for 128 MHz system clock with 2% frequency modulation.
3.12
3.12.1
AC Specifications
Pad AC Specifications
Table 17. Pad AC Specifications (VDDEH = 5.0V, VDDE = 1.8V)
1
Out Delay
2,
(ns)
26
82
01
75
137
00
377
476
3, 4
Num
1
Pad
Slow High Voltage (SH)
SRC/DSC
11
Rise/Fall
5
(ns)
15
60
40
80
200
260
8
30
15
35
100
125
2.7
2.5
2.4
2.3
Load Drive
(pF)
50
200
50
200
50
200
50
200
50
200
50
200
10
20
30
50
50
50
2
Medium High Voltage (MH)
11
16
43
01
34
61
00
192
239
3
Fast
00
01
10
11
3.1
4
5
1
Pull Up/Down (3.6V max)
Pull Up/Down (5.5V max)
—
—
—
—
7500
9000
2
3
4
5
These are worst case values that are estimated from simulation and not tested. The values in the table are simulated at
F
SYS
= 132MHz, VDD = 1.35V to 1.65V, VDDE = 1.62V to 1.98V, VDDEH = 4.5V to 5.5V, VDD33 and VDDSYN = 3.0V to 3.6V,
T
A
= TL to TH.
This parameter is supplied for reference and is not guaranteed by design and not tested.
Out delay is shown in
Add a maximum of one system clock to the output delay for delay with respect to system clock.
Delay and rise/fall are measured to 20% or 80% of the respective signal.
This parameter is guaranteed by characterization before qualification rather than 100% tested.
MPC5554 Microcontroller Data Sheet, Rev. 1.4
Freescale Semiconductor
23
FREESCALE [ FREESCALE SEMICONDUCTOR, INC ]
