DSP56321RMSLASHD datasheet(27/88 Pages) NXP

27 / 88 page

2-3

DC Electrical Characteristics

2.4 DC Electrical Characteristics

Table 2-3. DC Electrical Characteristics7

Characteristics

Symbol

Min

Typ

Max

Unit

Supply voltage1:

•

Core (VCCQL)

•

I/O (VCCQH, VCCA, VCCD, VCCC, VCCH, and VCCS)

1.5

3.0

1.6

3.3

1.7

3.6

Input high voltage

•

D[0–23], BG, BB, TA

•MOD/IRQ2 RESET, PINIT/NMI and all

JTAG/ESSI/SCI/Timer/HI08 pins

•EXTAL9

VIH

VIHP

VIHX

2.0

0.8

× V

CCQH

—

VCCQH + 0.3

VCCQH

Input low voltage

•

D[0–23], BG, BB, TA, MOD3/IRQ3, RESET, PINIT

•

All JTAG/ESSI/SCI/Timer/HI08 pins

•EXTAL9

VIL

VILP

VILX

–0.3

—

0.8

0.2

× V

CCQH

Input leakage current

IIN

–10

—

µA

High impedance (off-state) input current

(@ 2.4 V / 0.4 V)

ITSI

–10

—

µA

Output high voltage

•

TTL (IOH = –0.4 mA)

6,8

•

CMOS (IOH = –10 µA)

VOH

2.4

VCCQH – 0.01

—

Output low voltage

•

TTL (IOL = 3.0 mA, open-drain pins IOL = 6.7 mA)

6,8

•

CMOS (IOL = 10 µA)

VOL

—

0.4

0.01

Internal supply current:

•

In Normal mode3 at:

—220 MHz

—240 MHz

•

In Wait mode4 at:

—220 MHz

—240 MHz

•

In Stop mode5

ICCI

ICCW

ICCS

—

198

216

TBD

—

µA

Input capacitance6

CIN

—

Notes:

Power-up sequence: During power-up, and throughout the DSP56321T operation, VCCQH voltage must

always be higher or equal to VCCQL voltage.

Refers to MODA/IRQA, MODB/IRQB, MODC/IRQC, and MODD/IRQD pins.

Section 4.3 provides a formula to compute the estimated current requirements in Normal mode. To

obtain these results, all inputs must be terminated (that is, not allowed to float). Measurements are

based on synthetic intensive DSP benchmarks (see Appendix A). The power consumption numbers in

this specification are 90 percent of the measured results of this benchmark. This reflects typical DSP

applications.

To obtain these results, all inputs must be terminated (that is, not allowed to float).

DC current in Stop mode is based on preliminary estimation, and is evaluated based on measurements.

To obtain these results, all inputs not disconnected at Stop mode must be terminated (that is, not

allowed to float), and the DPLL and on-chip crystal oscillator must be disabled.

Periodically sampled and not 100 percent tested.

VCCQH = 3.3 V ± 0.3 V, VCCQL = 1.6 V ± 0.1 V; TJ = 0°C to +85°C, CL = 50 pF

This characteristic does not apply to XTAL.

Driving EXTAL to the low VIHX or the high VILX value may cause additional power consumption (DC

current). To minimize power consumption, the minimum VIHX should be no lower than

0.9

× V

CCQH and the maximum VILX should be no higher than 0.1 × VCCQH.

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

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