PCIMX258CJM4A datasheet(22/144 Pages) FREESCALE

22 / 144 page

i.MX25 Applications Processor for Consumer and Industrial Products, Rev. 3

Freescale Semiconductor

Note:

1. OVDD = 1.7 V; Vout = 1.42 V. (Vout-OVDD)/IOH must be less than 21 W for values of Vout between OVDD and OVDD-0.28 V.

2. OVDD = 1.7 V; Vout = 280 mV. Vout/IOL must be less than 21 W for values of Vout between 0 V and 280 mV. Simulation circuit

for parameters Voh and Vol for I/O cells is below

3. Vin(dc) specifies the allowable DC excursion of each differential input

4. Vid(dc) specifies the input differential voltage required for switching. The minimum value is equal to Vih(dc) - Vil(dc).

5. Vtt is expected to track OVDD/2.

6. Minimum condition: BCS model, 1.95 V, and –40 °C. Typical condition: typical model, 1.8 V, and 25 °C. Maximum condition:

wcs model, 1.65 V, and 105 °C.

7. Typical condition: typical model, 1.8 V, and 25 °C. Maximum condition: BCS model, 1.95 V, and 105 °C.

8. The JEDEC SSTL_18 specification (JESD8-15a) for a SSTL interface for class II operation supersedes any specification in

this document.

3.5.2

GPIO I/O DC Parameters

Table 18 shows the I/O parameters for GPIO.

DC input signal voltage(for

differential signal)

Vin(dc)

—

–0.3

—

OVDD + 0.3

DC differential input voltage

Vid(dc)

—

0.25

—

OVDD+0.6

Termination voltage

Vtt

—

OVDD/2 – 0.04

OVDD/2

OVDD/2 + 0.04

Input current (no pull-up/down)

IIN

VI = 0

VI = OVDD

——

110

High-impedance I/O supply current Icc-ovdd VI = OVDD or 0

—

980

High-impedance core supply

current

Icc-vddi

VI = VDD or 0

—

1210

Table 18. GPIO DC Electrical Characteristics

DC Electrical Characteristics

Symbol

Test Conditions

Min.

Typ.

Max.

Units

Notes

High-level output voltage

Voh

Ioh=–1mA

Ioh = Specified Drive

OVDD – 0.15

0.8

× OVDD

——V

Low-level output voltage

Vol

Iol=1mA

Iol=Specified Drive

——

0.15

0.2

× OVDD

High-level output current for slow

mode

Ioh

Voh=0.8

× OVDD

Standard Drive

High Drive

Max. Drive

–2.0

–4.0

–8.0

——

—

High-level output current for fast

mode

Ioh

Voh=0.8

× OVDD

Standard Drive

High Drive

Max. Drive

–4.0

–6.0

–8.0

——

—

Table 17. DDR2 (SSTL_18) I/O DC Electrical Characteristics (continued)

DC Electrical Characteristics

Symbol

Test

Conditions

Min.

Typ.

Max.

Units

Notes

PCIMX258CJM4A Datasheet(PDF) 22 Page - Freescale Semiconductor, Inc

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