ADSP21020 datasheet(12/32 Pages) AD

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RECOMMENDED OPERATING CONDITIONS

K Grade

B Grade

T Grade

Parameter

Min

Max

Min

Max

Min

Max

Unit

VDD

Supply Voltage

4.50

5.50

4.50

5.50

4.50

5.50

TAMB

Ambient Operating Temperature

+70

–40

+85

–55

+125

°C

Refer to Environmental Conditions for information on thermal specifications.

ELECTRICAL CHARACTERISTICS

Parameter

Test Conditions

Min

Max

Unit

VIH

Hi-Level Input Voltage

VDD = max

2.0

VIHCR

Hi-Level Input Voltage

2, 12

VDD = max

3.0

VIL

Lo-Level Input Voltage

1, 12

VDD = min

0.8

VILC

Lo-Level Input Voltage

VDD = max

0.6

VOH

Hi-Level Output Voltage

3, 11

VDD = min, IOH = –1.0 mA

2.4

VOL

Lo-Level Output Voltage

3, 11

VDD = min, IOL = 4.0 mA

0.4

IIH

Hi-Level Input Current

4, 5

VDD = max, VIN = VDD max

µA

IIL

Lo-Level Input Current

VDD = max, VIN = 0 V

µA

IILT

Lo-Level Input Current

VDD = max, VIN = 0 V

350

µA

IOZH

Tristate Leakage Current

VDD = max, VIN = VDD max

µA

IOZL

Tristate Leakage Current

VDD = max, VIN = 0 V

µA

IDDIN

Supply Current (Internal)

tCK = 30–33 ns, VDD = max, VIHCR = 3.0 V,

490

VIH = 2.4 V, VIL = VILC = 0.4 V

IDDIDLE

Supply Current (Idle)

VDD = max, VIN = 0 V or VDD max

150

CIN

Input Capacitance

9, 10

fIN = 1 MHz, TCASE = 25

°C, V

IN = 2.5 V

NOTES

lApplies to: PMD47–0, PMACK, PMTS, DMD39–0, DMACK, DMTS, IRQ3–0. FLAG3–0, BR, TMS, TDI.

2Applies to: CLKIN, TCK.

3Applies to: PMA23–0, PMD47–0, PMS1–0, PMRD, PMWR, PMPAGE, DMA31–0, DMD39–0, DMS3–0, DMRD, DMWR, DMPAGE, FLAG3–0,

TIMEXP, BG.

4Applies to: PMACK, PMTS, DMACK, DMTS, IRQ3–0, BR, CLKIN, RESET, TCK.

5Applies to: TMS, TDI, TRST.

6Applies to: PMA23–0, PMD47–0, PMS1–0, PMRD, PMWR, PMPAGE, DMA31–0, DMD39–0, DMS3–0, DMRD, DMWR, DMPAGE, FLAG3–0, TDO.

7Applies to IVDD pins. At t

CK = 30–33 ns, IDDIN (typical) = 230 mA; at tCK = 40 ns, IDDIN (max) = 420 mA and IDDIN (typical) = 200 mA; at tCK = 50 ns,

IDDIN (max) = 370 mA and IDDIN (typical) = 115 mA. See “Power Dissipation” for calculation of external (EVDD) supply current for total supply current.

8Applies to IVDD pins. Idle refers to ADSP-21020 state of operation during execution of the IDLE instruction.

9Guaranteed but not tested.

10Applies to all signal pins.

11Although specified for TTL outputs, all ADSP-21020 outputs are CMOS-compatible and will drive to V

DD and GND assuming no dc loads.

12Applies to RESET, TRST.

ABSOLUTE MAXIMUM RATINGS*

Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V

Input Voltage . . . . . . . . . . . . . . . . . . . . –0.3 V to VDD + 0.3 V

Output Voltage Swing . . . . . . . . . . . . . –0.3 V to VDD + 0.3 V

Load Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 pF

Operating Temperature Range (Ambient) . . –55

°C to +125°C

Storage Temperature Range . . . . . . . . . . . . –65

°C to +150°C

Lead Temperature (10 seconds) CPGA . . . . . . . . . . . +300

°C

ESD SENSITIVITY

The ADSP-21020 features proprietary input protection circuitry to dissipate high energy discharges

(Human Body Model). Per method 3015 of MIL-STD-883, the ADSP-21020 has been classified

as a Class 3 device, with the ability to withstand up to 4000 V ESD.

Proper ESD precautions are strongly recommended to avoid functional damage or performance

degradation. Charges readily accumulate on the human body and test equipment and discharge

without detection. Unused devices must be stored in conductive foam or shunts, and the foam

should be discharged to the destination socket before devices are removed. For further information

on ESD precautions, refer to Analog Devices’ ESD Prevention Manual.

*Stresses above those listed under “Absolute Maximum Ratings” may cause

permanent damage to the device. These are stress ratings only and functional

operation of the device at these or any other conditions above those indicated in the

operational sections of this specification is not implied. Exposure to absolute

maximum rating conditions for extended periods may affect device reliability.

REV. C

–12–

ADSP-21020–SPECIFICATIONS

WARNING!

ESD SENSITIVE DEVICE

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