MPC7450EC datasheet(13/52 Pages) MOTOROLA

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MOTOROLA

MPC7450 RISC Microprocessor Hardware Speciﬁcations

Electrical and Thermal Characteristics

Table 6 provides the DC electrical characteristics for the MPC7450.

Table 6. DC Electrical Speciﬁcations

At recommended operating conditions. See Table 4.

Characteristic

Nominal

Bus

Voltage1

Symbol

Min

Max

Unit

Notes

Input high voltage

(all inputs except SYSCLK)

1.5

VIH

GVDD × 0.65

GVDD + 0.3

1.8

VIH

OVDD/GVDD × 0.65

OVDD/GVDD + 0.3

2.5

VIH

1.7

OVDD/GVDD + 0.3

Input low voltage

(all inputs except SYSCLK)

1.5

VIL

–0.3

GVDD × 0.35

1.8

VIL

–0.3

OVDD/GVDD × 0.35

2.5

VIL

–0.3

0.7

SYSCLK input high voltage

—

CVIH

1.4

OVDD + 0.3

SYSCLK input low voltage

—

CVIL

–0.3

0.4

Input leakage current,

Vin = GVDD/OVDD + 0.3 V

—Iin

—

µA

2, 3

High impedance (off-state) leakage

current, Vin = GVDD/OVDD + 0.3 V

—ITSI

—

µA

2, 3, 5

Output high voltage, IOH = –5 mA

1.5

VOH

OVDD/GVDD – 0.45

—

1.8

VOH

OVDD/GVDD – 0.45

—

2.5

VOH

1.7

—

Output low voltage, IOL = 5 mA

1.5

VOL

—

0.45

1.8

VOL

—

0.45

2.5

VOL

—

0.7

Capacitance,

Vin = 0 V,

f = 1 MHz

L3 interface

—

Cin

—

9.5

All other inputs

—

8.0

Notes:

1. Nominal voltages; see Table 4 for recommended operating conditions.

2. For processor bus signals, the reference is OVDD while GVDD is the reference for the L3 bus signals.

3. Excludes test signals and IEEE 1149.1 boundary scan (JTAG) signals.

4. Capacitance is periodically sampled rather than 100% tested.

5. The leakage is measured for nominal OVDD/GVDD and VDD, or both OVDD/GVDD and VDD must vary in the same

direction (for example, both OVDD and VDD vary by either +5% or –5%).

6. Applicable to L3 bus interface only.

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

IVE

D B

Y F

INC

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