S12SCIV2SLASHD datasheet(97/130 Pages) FREESCALE

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MC9S12H256 Device User Guide — V01.18

A.1.10 Supply Currents

This section describes the current consumption characteristics of the device as well as the conditions for

the measurements.

A.1.10.1 Measurement Conditions

All measurements are without output loads. Unless otherwise noted the currents are measured in single

chip mode, internal voltage regulator enabled and at 16MHz bus frequency using a 4MHz oscillator in

Colpitts mode. Production testing is performed using a square wave signal at the EXTAL input.

A.1.10.2 Additional Remarks

In expanded modes the currents flowing in the system are highly dependent on the load at the address, data

and control signals as well as on the duty cycle of those signals. No generally applicable numbers can be

Injection current3

Single Pin limit

Total Device Limit. Sum of all injected currents

IICS

IICP

–2.5

–25

–

2.5

P Port H, J Interrupt Input Pulse ﬁltered4

tPULSE

µs

P Port H, J Interrupt Input Pulse passed4

tPULSE

µs

NOTES:

1. Maximum leakage current occurs at maximum operating temperature. Current decreases by approximately one-half for

each 8 C to 12 C in the temperature range from 50 C to 125 C.

2. Maximum leakage current occurs at maximum operating temperature. Current decreases by approximately one-half for

each 8 C to 12 C in the temperature range from 50 C to 125 C.

3. Refer to Section A.1.4 Current Injection, for more details

4. Parameter only applies in STOP or Pseudo STOP mode.

Table A-6 5V I/O Characteristics

Conditions are shown in Table A-4 unless otherwise noted

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