PC7447 datasheet(19/66 Pages) ATMEL

19 / 66 page

PC7457/47 [Preliminary]

5345B–HIREL–02/04

3. Maximum power is the average measured at nominal VDD and maximum operating

junction temperature (see Table 3 on page 12) while running an entirely cache-resi-

dent, contrived sequence of instructions which keep all the execution units maximally

busy.

4. Doze mode is not a user-definable state; it is an intermediate state between full-

power and either nap or sleep mode. As a result, power consumption for this mode is

not tested.

Electrical

Characteristics

Static Characteristics

Table 7 provides the DC electrical characteristics for the PC7457

Notes:

1. Nominal voltages; see Table 3 on page 12 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. The leakage is measured for nominal OV

DD/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%).

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

6. Applicable to L3 bus interface only

Table 7. DC Electrical Specifications (see Table 3 on page 12 for Recommended Operating Conditions)

Symbol

Characteristic

Nominal Bus

Voltage(1)

Min

Max

Unit

(2)

Input high voltage (all inputs including SYSCLK)

1.5

DD × 0.65

DD + 0.3

VIH

1.8

OVDD/GVDD × 0.65

OVDD/GVDD + 0.3

VIH

2.5

1.7

OVDD/GVDD + 0.3

(2)(6)

Input low voltage (all inputs including SYSCLK)

1.5

-0.3

DD × 0.35

VIL

1.8

-0.3

OVDD/GVDD × 0.35

2.5

-0.3

0.7

(2)(3)

Input leakage current, V

IN = GVDD/OVDD

––

µA

ITSI(2)(3)(4)

High-impedance (off-state)

Leakage current, V

IN = GVDD/OVDD

––

µA

VOH

(6)

Output high voltage, I

OH = -5 mA

1.5

OVDD/GVDD – 0.45

–

1.8

DD/GVDD – 0.45

–

2.5

1.8

–

VOL

(6)

Output low voltage, I

OL = 5 mA

1.5

–

0.45

1.8

–

0.45

2.5

–

0.6

Capacitance,

IN = 0V, f = 1 MHz

L3 interface(5)

–

–9.5

All other inputs(5)

–8.0

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