I.MX27 Datasheet, PDF (44/148 Pages) Freescale Semiconductor, Inc – Multimedia Applications Processor

Electrical Characteristics
Table 12. GPIO Pads DC Electrical Parameters (continued)
Parameter
Symbol
Test Conditions
Min
Pull-up resistor (22 kΩ PU)
Pull-up resistor (47 kΩ PU)
Pull-up resistor (100 kΩ PU)
Pull-down resistor (100 kΩ PD)
Input current (no PU/PD)
Input current (22 kΩ PU)
Input current (47 kΩ PU)
Input current (100 kΩ PU)
Input current (100 kΩ PD)
Tri-state input leakage current
R_PU
—
15
R_PU
—
30
R_PU
—
34
R_PD
—
25
I_IN
V_I = 0
—
V_I = N_VDD
I_IN
V_I = 0
—
V_I = N_VDD
I_IN
V_I = 0
—
V_I = N_VDD
I_IN
V_I = 0
—
V_I = N_VDD
I_IN
V_I = 0
—
V_I = N_VDD
I_Z
V_I = N_VDD or 0
—
I/O = high Z
High Level DC Input Voltage
V_IH
—
0.7*V_DDIO
Low-Level DC Input Voltage
V_IL
—
0
Note:
1 _{Max High strength should be avoided due to excessive overshoot and ringing.}
Typical
22
47
100
100
0.33
—
—
—
—
0.33
—
—
Max
59
128
268
343
±1
115
0.1
53
0.1
25
0.1
0.25
28
±2
V_DDIO
0.3*V_DDIO
Units
kΩ
μA
μA
μA
μA
μA
μA
μA
μA
μA
μA
V
V
Table 13. DDR (Double Data Rate) I/O Pads DC Electrical Parameters
Parameter
High-level output voltage
Low-level output voltage
High-level output current
Symbol Test Conditions
Min
Typical
Max
Units
V_OH
I_OH = -1 mA
NV_{DD_DDR}
—
—
V
–0.08
I_OH = specified Drive 0.8*NV_{DD_}
—
DDR
—
V
V_OL
I_OL = 1 mA
—
—
0.08
V
I_OL = specified Drive
—
—
0.2*NV_{DD_} V
DDR
I_OH
V_OH=0.8*NV_{DD_DDR}
—
Normal
–3.6
High
Max High¹
DDR Drive¹
–7.2
–10.8
–14.4
—
mA
i.MX27 and i.MX27L Data Sheet, Rev. 1.5
44
Freescale Semiconductor