ADSP2185 datasheet(13/32 Pages) AD

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ADSP-2185

RECOMMENDED OPERATING CONDITIONS

K Grade

B Grade

Parameter

Min

Max

Min

Max

Unit

VDD

4.5

5.5

4.5

5.5

TAMB

+70

–40

+85

°C

ELECTRICAL CHARACTERISTICS

K/B Grades

Parameter

Test Conditions

Min

Typ

Max

Unit

VIH

Hi-Level Input Voltage

1, 2

@ VDD = max

2.0

VIH

Hi-Level CLKIN Voltage

@ VDD = max

2.2

VIL

Lo-Level Input Voltage

1, 3

@ VDD = min

0.8

VOH

Hi-Level Output Voltage

1, 4, 5

@ VDD = min

IOH = –0.5 mA

2.4

@ VDD = min

IOH = –100

µA6

VDD – 0.3

VOL

Lo-Level Output Voltage

1, 4, 5

@ VDD = min

IOL = 2 mA

0.4

IIH

Hi-Level Input Current

@ VDD = max

VIN = VDDmax

µA

IIL

Lo-Level Input Current

@ VDD = max

VIN = 0 V

µA

IOZH

Three-State Leakage Current

@ VDD = max

VIN = VDDmax

µA

IOZL

Three-State Leakage Current

@ VDD = max

VIN = 0 V

µA

IDD

Supply Current (Idle)

@ VDD = 5.0

12.4

IDD

Supply Current (Dynamic)10

@ VDD = 5.0

TAMB = +25

°C

tCK = 30 ns

Input Pin Capacitance3, 6, 12

@ VIN = 2.5 V,

fIN = 1.0 MHz,

TAMB = +25

°C

Output Pin Capacitance6, 7, 12, 13

@ VIN = 2.5 V,

fIN = 1.0 MHz,

TAMB = +25

°C8

NOTES

1 Bidirectional pins: D0–D23, RFS0, RFS1, SCLK0, SCLK1, TFS0, TFS1, A1–A13, PF0-PF7.

2 Input only pins:

RESET, BR, DR0, DR1, PWD.

3 Input only pins: CLKIN,

RESET, BR, DR0, DR1, PWD.

4 Output pins:

BG, PMS, DMS, BMS, IOMS, CMS, RD, WR, PWDACK, A0, DT0, DT1, CLKOUT, FL2-0, BGH.

5 Although specified for TTL outputs, all ADSP-2185 outputs are CMOS-compatible and will drive to V

DD and GND, assuming no dc loads.

6 Guaranteed but not tested.

7 Three-statable pins: A0–A13, D0–D23,

PMS, DMS, BMS, IOMS, CMS, RD, WR, DT0, DT1, SCLK0, SCLK1, TFS0, TFS1, RFS0, RSF1, PF0–PF7.

8 0 V on

BR, CLKIN Inactive.

9 Idle refers to ADSP-2185 state of operation during execution of IDLE instruction. Deasserted pins are driven to either V

DD or GND.

10 IDD measurement taken with all instructions executing from internal memory. 50% of the instructions are multifunction (types 1, 4, 5, 12, 13, 14), 30% are type 2

and type 6, and 20% are idle instructions.

11 V

IN = 0 V and 3 V. For typical figures for supply currents, refer to Power Dissipation section.

12 Applies to TQFP package type.

13 Output pin capacitance is the capacitive load for any three-stated output pin.

Specifications subject to change without notice.

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