MAC7200 datasheet(940/976 Pages) FREESCALE

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Operating Conditions

MAC7200 Microcontroller Family Reference Manual, Rev. 2

862

Freescale Semiconductor

A.4.1

Input/Output Pins

The I/O pins operate at a nominal level of 5V. This class of pins is comprised of the clocks, RESET, TEST,

JTAG interface, and general purpose/peripheral pins (i.e.-Port A-G). The internal structure of these pins is

identical; however, some functionality may be disabled (for example, on all ATD analog inputs on Port E,

the output drivers are permanently disabled).

This section describes the characteristics of all I/O pins under 5V operating conditions. All parameters are

not always applicable; for example, not all pins feature pull up/down resistances.

D System Clock Frequency

fSYS

0.5

—

MHz

D Peripheral Bus Frequency

fPERIPH

0.25

—

MHz

C9a

MAC72xxC

Operating Junction Temperature Range2

–40

—

110

°C

C9b

Operating Ambient Temperature Range 2

–40

°C

C10a D

MAC72xxV

Operating Junction Temperature Range 2

–40

—

130

°C

C10b D

Operating Ambient Temperature Range 2

–40

105

°C

C11a D

MAC72xxM

Operating Junction Temperature Range 2

–40

—

150

°C

C11b D

Operating Ambient Temperature Range 2

–40

125

°C

1. The device contains an internal voltage regulator to generate the logic and PLL supply from the I/O supply. The absolute

maximum ratings apply when this regulator is disabled and the device is powered from an external source.

2. Please refer to Section A.5, “Power Dissipation and Thermal Characteristics” for more details about the relation between

ambient temperature TA and device junction temperature TJ.

Table A-6. 5V I/O Characteristics

Conditions shown in Table A-5 unless otherwise noted

Num

Rating

Symbol

Min

Typ

Max

Unit

Input High Voltage

0.65

VDD5

—VDD5+

0.3

Input Low Voltage

VSS5 –

0.3

—0.35

VDD5

Input Hysteresis

HYS

No Hysteresis

Input Leakage Current (pins in high impedance input mode)2

= V

5 or V

–2.5

—

2.5

μA

Output High Voltage (pins in output mode)

Drive IOH = –2mA

0.8

VDD5

——

Output Low Voltage (pins in output mode)

Drive IOL = +2mA

——

0.2

VDD5

Internal Pull Up Device Current,

tested at V

Max.

IPUL

—

150

μA

Table A-5. MAC7200 Family Device Operating Conditions (Continued)

Num

Rating

Symbol

Min

Typ

Max

Unit

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