Analog Devices ADSST-EM-3040 ADSST-SALEM-3T ADSST-218X Electrical Characteristics

ADSST-SALEM-3T

ADSST-218X ELECTRICAL CHARACTERISTICS

Table 4.

Parameter	Test Conditions	Min	Typ Max	Unit
VIH High Level Input Voltage1, 2	@ VDDINT = Max	1.5		V
VIH High Level CLKIN Voltage	@ VDDINT = Max	2.0		V
VIL Low Level Input Voltage1, 3	@ VDDINT = Min		0.7	V
VOH High Level Output Voltage1, 4, 5	@ VDDEXT = Min, IOH = –0.5 mA	2.0		V
	@ VDDEXT = 3.0 V, IOH = –0.5 mA	2.4		V
	@ VDDEXT = Min, IOH = –100 µA6	VDDEXT – 0.3		V
VOL Low Level Output Voltage1, 4, 5	@ VDDEXT = Min, IOL = 2 mA		0.4	V
IIH High Level Input Current3	@ VDDINT = Max, VIN = 3.6 V		10	µA
IIL Low Level Input Current3	@ VDDINT = Max, VIN = 0 V		10	µA
IOZH Three-State Leakage Current7	@ VDDEXT = Max, VIN = 3.6 V8		10	µA
IOZL Three-State Leakage Current7	@ VDDEXT = Max, VIN = 0 V8		10	µA
IDD Supply Current (Idle)9	@ VDDINT = 2.5 V, tCK = 15 ns		9	mA
	@ VDDINT = 2.5 V, tCK = 13.3 ns		10	mA
IDD Supply Current (Dynamic)10	@ VDDINT = 2.5 V, tCK = 13.3 ns11, TAMB = +25°C		35	mA
	@ VDDINT = 2.5 V, tCK = 15 ns11, TAMB = +25°C		38	mA
IDD Supply Current (Power-Down)12	@ VDDINT = 2.5 V, TAMB = +25°C in Lowest Power Mode		100	mA
CI Input Pin Capacitance3, 6	@ VIN = 2.5 V, fIN = 1.0 MHz, TAMB = +25°C		8	pF
CO Output Pin Capacitance6, 7, 12, 13	@ VIN = 2.5 V, fIN = 1.0 MHz, TAMB = +25°C		8	pF

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

2Input only pins: RESET, BR, DR0, DR1, PWD.

3Input only pins: CLKIN, RESET, BR, DR0, DR1, PWD.

4Output pins: BG, PMS, DMS, BMS, IOMS, CMS, RD, WR, PWDACK, A0, DT0, DT1, CLKOUT, FL2–0, BGH.

5Although specified for TTL outputs, all ADSP-2186 outputs are CMOS compatible and will drive to VDDEXT and GND, assuming no dc loads. 6Guaranteed but not tested.

7Three-statable pins: A0–A13, D0–D23, PMS, DMS, BMS, IOMS, CMS, RD, WR, DT0, DT1, SCLK0, SCLK1, TFS0, TFS1, RFS0, RFS1, PF0–PF7.

80 V on BR.

9Idle refers to ADSST-218x state of operation during execution of IDLE instruction. Deasserted pins are driven to either VDD 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 figures for supply currents, refer to the Power Dissipation section.

12Applies to LQFP package type.

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

Rev. 0 Page 8 of 24