PXN20 Datasheet, PDF (35/60 Pages) Freescale Semiconductor, Inc – PXN20 Microcontroller

Electrical characteristics
4.7.1 I/O pad V_DD33 current specifications
The power consumption of the V_DD33 supply is dependent on the usage of the pins on all I/O segments. The power consumption
is the sum of all input and output pin V_DD33 currents for all I/O segments. The output pin V_DD33 current can be calculated from
Table 12 based on the voltage, frequency, and load on all Pad F pins. The input pin V_DD33 current can be calculated from
Table 12 based on the voltage, frequency, and load on all Pad MH pins. Use linear scaling to calculate pin currents for voltage,
frequency, and load parameters that fall outside the values given in Table 12.
Table 12. I/O pad average I_DD33 specifications¹
Spec
Pad
Type²
Symbol
Period
(ns)
Load³
(pF)
Drive
Select
I_DD33 Avg
(µA)
I_DD33 RMS
(µA)
1
100
50
11
0.8
235.7
2
200
Slow
I_{DRV_SSR_HV}
3
800
50
01
50
00
0.04
0.06
87.4
47.4
4
800
200
00
0.009
47
5
40
6
100
Medium I_{DRV_MSR_HV}
7
500
50
11
50
01
50
00
0.11
0.02
76.5
56.2
8
500
200
00
0.01
56.2
9 Input
I_{DRV_I_HV}
7
0.5
N/A
1 _{These are typical values that are estimated from simulation and not tested. Currents apply to output pins only.}
2 _{Slow = SH or SHA; Medium = MH or MHA; Fast = F; Input = IHA. See Table 3.}
3 _{All loads are lumped.}
Spec
Pad
Type²
Symbol
Table 13. I_DD33 pad average DC current¹
Period
(ns)
Load³
(pF)
V_DD33
(V)
V_DDE
(V)
Drive
Select
I_DD33 Avg I_DD33 RMS
(µA)
(µA)
1
10
50
3.6
3.6
11
3.32
2
10
30
3.6
3.6
10
2.28
3
10
20
3.6
3.6
01
1.73
4
10
Fast I_{DRV_FC}
5
10
10
3.6
3.6
00
1.39
50
3.6
2.75
11
2.3
6
10
30
3.6
2.75
10
1.64
7
10
20
3.6
2.75
01
1.37
8
10
10
3.6
2.75
00
1.06
1 _{These are typical values that are estimated from simulation and not tested. Currents apply to output pins only.}
2 _{Slow = SH or SHA; Medium = MH or MHA; Fast = F; Input = IHA. See Table 3.}
3 _{All loads are lumped.}
11.77
7.07
5.75
4.77
7.81
4.96
4.31
4.09
PXN20 Microcontroller Data Sheet, Rev. 1
Freescale Semiconductor
35