MCIMX287CVM4B Freescale, MCIMX287CVM4B Datasheet - Page 21

• Manufacturer Part Number: MCIMX287CVM4B
• Manufacturer: Freescale

Specifications of MCIMX287CVM4B

• Lead Free Status / RoHS Status: Compliant

2
3.2.2
Max load includes capacitive load due to PCB traces, pad capacitance and driver self-loading. For the
internal pull.up setting of each pad, see the “Pin Control and GPIO” section of the reference manual.
Table 25
pins loaded using the 4mA driver, 4 pins loaded using the 8mA driver, and 2 pins loaded using either the
12mA or 16mA driver.
Freescale Semiconductor
10-K pull-up resistance
47-K pull-up resistance
Setting is for worst case. Freescale’s EMI interface uses less powerful drivers than those typically used in mDDR devices. A
possible transmission-line effect on the PC board must be suppressed by minimizing the trace length combined with
Freescale’s slower edge-rate drivers. The i.MX28 provides up to 16 mA programmable drive strength. However, the 16-mA
mode is an experimental mode. With the 16-mA mode, the EMI function may be impaired by Simultaneous Switching Output
(SSO) noise. In general, the stronger the driver mode, the noisier the on-chip power supply. Freescale recommends not using
a stronger driver mode than is required. Because on-chip power and ground noise is proportional to the inductance of its return
path, users should make their best effort to reduce inductance between the EMI power and ground balls and the PC board
power and ground planes.
gpio, gpio_f , and gpio_nobs
gpio, gpio_f , and gpio_nobs
Output source current
Output source current
Output sink current
Output sink current
Output voltage high (dc)
3.3V I/O supply voltage
Output voltage low (dc)
Input voltage high (dc)
Input voltage low (dc)
Core supply voltage
shows the digital pin DC characteristics for GPIO in 3.3-V mode. Measurements are valid for 8
Parameter
gpio_clk
gpio_clk
GPIO I/O DC Parameters
1
1
2
2
i.MX28 Applications Processor Data Sheet for Consumer Products, Rev. 0
1
1
(dc)
(dc)
Table 25. Digital Pin DC Characteristics for GPIO in 3.3-V Mode
(dc)
(dc)
IOH – 12mA
IOH – 16mA
IOL – 12mA
IOL – 16mA
IOH – 4mA
IOH – 8mA
IOH – 8mA
IOL – 4mA
IOL – 8mA
IOL – 8mA
VDDIO33
Symbol
Rpu10k
Rpu47k
VDDD
VOH
VOL
VIH
VIL
0.8 × VDDIO
1.25
11.4
12.1
15.2
16.2
Min
3.8
7.6
8.1
7.6
8.1
39
—
—
3
2
4
8
VDDIO
Max
1.55
13.6
20.4
16.4
24.5
13.6
27.2
15.4
30.9
3.6
0.8
0.4
6.8
8.1
12
56
—
Units
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
KΩ
KΩ
V
V
V
V
V
V
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