Freescale Semiconductor Demonstration Board for Freescale MC9S12XHY256 Microcontroller DEMO9S12XHY256 DEMO9S12XHY256 用户手册

726

Freescale Semiconductor

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

Run current is measured on VDDR and VDDA pin. It does not include the current to drive external
loads.Since the current consumption of the output drivers is load dependent, all measurements are without
output loads and with minimum I/O activity. The currents are measured in single chip mode, S12XCPU
code is executed from Flash. V

DD35

=5V, internal voltage regulator is enabled and the bus frequency is 40

MHz using a 4 MHz oscillator in loop controlled Pierce mode.

Since the DBG and BDM modules are typically not used in the end application, the supply current values
for these modules is not specified.

An overhead of current consumption exists independent of the listed modules, due to voltage regulation
and clock logic that is not dedicated to a specific module. This is listed in the table row named “overhead”.

11

P Internal pull up device resistance all except PU/PV

V

IH

 min > input voltage > V

IL

 max

R

PUL

25

—

90

K

Ω

P Internal pull up device current PU/PV

V

IH

 min > input voltage > V

IL

 max

I

PUL

-10

—

-130

µ

A

12

P Internal pull down device resistance all except

PU/PV
V

IH

 min > input voltage > V

IL

 max

R

PDH

25

—

90

K

Ω

P Internal pull down device current PU/PV

V

IH

 min > input voltage > V

IL

 max

I

PDH

10

—

130

µ

A

13

D Input capacitance

C

in

—

7

—

pF

14

T Injection current

3

Single pin limit
Total device Limit, sum of all injected currents

I

ICS

I

ICP

–2.5

–25

—

2.5

25

mA

15

P Port T, S, R,AD interrupt input pulse filtered (STOP)

4

t

PULSE

—

—

3

µ

s

16

P Port T, S, ADinterrupt input pulse passed (STOP)

3

t

PULSE

10

—

—

µ

s

17

P Port T, S, R,AD interrupt input pulse filtered (STOP)

5

t

PULSE

—

—

3

tcyc

18

P Port T, S, ADinterrupt input pulse passed (STOP)

3

t

PULSE

4

—

—

tcyc

19

D IRQ pulse width, edge-sensitive mode (STOP)

PW

IRQ

1

—

—

tcyc

20

D XIRQ pulse width with X-bit set (STOP)

PW

XIRQ

4

—

—

tosc

1

Maximum leakage current occurs at maximum operating temperature.

2

Maximum leakage current occurs at maximum operating temperature.

3

Refer to

 for more details

4

Parameter only applies in stop or pseudo stop mode.

5

Parameter only applies in stop or pseudo stop mode.

Conditions are 4.5 V < V

DD35

< 5.5 V junction temperature from –40

°

C to +150

°

C, unless otherwise noted

I/O Characteristics for all I/O pins except EXTAL, XTAL,TEST and supply pins.