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ADSP-2185NBCA-320 Datasheet(PDF) 23 Page - Analog Devices |
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ADSP-2185NBCA-320 Datasheet(HTML) 23 Page - Analog Devices |
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23 / 48 page  ADSP-218xN Rev. A | Page 23 of 48 | August 2006 ABSOLUTE MAXIMUM RATINGS ESD SENSITIVITY IDD Supply Current (Idle)9 @ VDDINT = 1.9 V, tCK = 12.5 ns, TAMB = 25°C 6.5 mA IDD Supply Current (Dynamic) 10 @ VDDINT = 1.9 V, tCK = 12.5 ns 11, TAMB = 25°C 26 mA IDD Supply Current (Power-Down) 12 @ VDDINT = 1.8 V, TAMB = 25°C in Lowest Power Mode 100 μA CI Input Pin Capacitance3, 6 @ VIN = 1.8 V, fIN = 1.0 MHz, TAMB = 25°C 8pF CO Output Pin Capacitance 6, 7, 12, 13 @ VIN = 1.8 V, fIN = 1.0 MHz, TAMB = 25°C 8pF 1 Specifications subject to change without notice. 2 Bidirectional pins: D23–0, RFS0, RFS1, SCLK0, SCLK1, TFS0, TFS1, A13–1, PF7–0. 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–FL0, BGH. 5 Although specified for TTL outputs, all ADSP-218xN outputs are CMOS-compatible and will drive to VDDEXT and GND, assuming no dc loads. 6 Guaranteed but not tested. 7 Three-statable pins: A13–A1, D23–D0, PMS, DMS, BMS, IOMS, CMS, RD, WR, DT0, DT1, SCLK0, SCLK1, TFS0, TFS1, RFS0, RFS1, PF7–PF0. 8 0 V on BR. 9 Idle refers to ADSP-218xN state of operation during execution of IDLE instruction. Deasserted pins are driven to either V DD or GND. 10IDD 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. 11VIN = 0 V and 3 V. For typical values for supply currents, refer to Power Dissipation section. 12See ADSP-218x DSP Hardware Reference for details. 13Output pin capacitance is the capacitive load for any three-stated output pin. Parameter 1 Description Test Conditions Min Typ Max Unit Parameter Rating Internal Supply Voltage (VDDINT) 1 1 Stresses greater than those listed above may cause permanent damage to the device. These are stress ratings only. Functional operation of the device at these or any other conditions greater than those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating condi- tions for extended periods may affect device reliability. – 0.3 V to +2.2 V External Supply Voltage (VDDEXT)–0.3 V to +4.0 V Input Voltage2 2 Applies to Bidirectional pins (D23–0, RFS0, RFS1, SCLK0, SCLK1, TFS0, TFS1, A13–1, PF7–0) and Input only pins (CLKIN, RESET, BR, DR0, DR1, PWD). – 0.5 V to +4.0 V Output Voltage Swing 3 3 Applies to Output pins (BG, PMS, DMS, BMS, IOMS, CMS, RD, WR, PWDACK, A0, DT0, DT1, CLKOUT, FL2–0, BGH). –0.5 V to VDDEXT +0.5 V Operating Temperature Range – 40°C to +85°C Storage Temperature Range – 65°C to +150°C CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the ADSP-218xN features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. |
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