ADSP-2181–SPECIFICATIONS
RECOMMENDED OPERATING CONDITIONS
K Grade
B Grade
P aram eter
Min
Max
Min
Max
Unit
VDD
T AMB
Supply Voltage
Ambient Operating T emperature
4.5
0
5.5
+70
4.5
–40
5.5
+85
V
°C
ELECTRICAL CHARACTERISTICS
K/B Grades
Typ
P aram eter
Test Conditions
Min
Max
Unit
VIH
VIH
VIL
VOH
Hi-Level Input Voltage1, 2
Hi-Level CLKIN Voltage
Lo-Level Input Voltage1, 3
Hi-Level Output Voltage1, 4, 5
@ VDD = max
@ VDD = max
@ VDD = min
@ VDD = min
IOH = –0.5 mA
@ VDD = min
IOH = –100 µA6
@ VDD = min
IOL = 2 mA
@ VDD = max
VIN = VDDmax
@ VDD = max
VIN = 0 V
@ VDD = max
VIN = VDDmax8
@ VDD = max
VIN = 0 V8
@ VDD = 5.0
TAMB = +25°C
tCK = 34.7 ns
tCK = 30 ns
2.0
2.2
V
V
V
0.8
2.4
V
VDD – 0.3
V
VOL
IIH
Lo-Level Output Voltage1, 4, 5
Hi-Level Input Current3
0.4
10
10
10
10
V
µA
µA
µA
µA
IIL
Lo-Level Input Current3
T hree-State Leakage Current7
T hree-State Leakage Current7
Supply Current (Idle)9
IOZH
IOZL
IDD
12
13
15
mA
mA
mA
tCK = 25 ns
IDD
Supply Current (Dynamic)10
@ VDD = 5.0
TAMB = +25°C
tCK = 34.7 ns11
tCK = 30 ns11
tCK = 25 ns11
@ VIN = 2.5 V,
fIN = 1.0 MHz,
TAMB = +25°C
@ VIN = 2.5 V,
fIN = 1.0 MHz,
TAMB = +25°C
65
73
85
mA
mA
mA
CI
Input Pin Capacitance3, 6, 12
8
8
pF
pF
CO
Output Pin Capacitance6, 7, 12, 13
NOT ES
1Bidirectional pins: D0–D23, RFS0, RFS1, SCLK0, SCLK1, T FS0, T FS1, 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, DT 0, DT 1, CLKOUT , FL2-0, BGH.
5Although specified for T T L outputs, all ADSP-2186 outputs are CMOS-compatible and will drive to VDD and GND, assuming no dc loads.
6Guaranteed but not tested.
7T hree-statable pins: A0–A13, D0–D23, PMS, DMS, BMS, IOMS, CMS, RD, WR, DT 0, DT 1, SCLK0, SCLK1, T FS0, T FS1, RFS0, RSF1, PF0–PF7.
80 V on BR, CLKIN Inactive.
9Idle refers to ADSP-2181 state of operation during execution of IDLE instruction. Deasserted pins are driven to either V DD or GND.
10
I
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
DD
and type 6, and 20% are idle instructions.
11
V
= 0 V and 3 V. For typical figures for supply currents, refer to Power Dissipation section.
IN
12Applies to T QFP and PQFP package types.
13Output pin capacitance is the capacitive load for any three-stated output pin.
Specifications subject to change without notice.
–12–
REV. D
ADI [ ADI ]
