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ADSP-218xN Series
ELECTRICAL CHARACTERISTICS
(CONTINUED)
–22–
REV. 0
ABSOLUTE MAXIMUM RATINGS
Internal Supply Voltage (V
DDINT
)
1
. . . . . . . . –0.3 V to +2.2 V
External Supply Voltage (V
DDEXT
) . . . . . . . . –0.3 V to +4.0 V
Input Voltage
2
. . . . . . . . . . . . . . . . . . . . . . –0.5 V to +4.0 V
Output Voltage Swing
3
. . . . . . . . . . .–0.5 V to V
DDEXT
+0.5 V
Operating Temperature Range . . . . . . . . . . .–40oC to +85oC
Storage Temperature Range . . . . . . . . . . . .–65oC to +150oC
Lead Temperature (5 sec) LQFP . . . . . . . . . . . . . . . –280oC
I
DD
Supply Current (Idle)
9
@ V
DDINT
= 1.9 V,
t
CK
= 12.5 ns,
T
AMB
= 25
°
C
@ V
DDINT
= 1.9 V,
t
CK
= 12.5 ns
11
,
T
AMB
= 25
°
C
@ V
DDINT
= 1.8 V,
T
AMB
= 25
°
C
in Lowest Power Mode
@ V
IN
= 1.8 V,
f
IN
= 1.0 MHz,
T
AMB
= 25
°
C
@ V
IN
= 1.8 V,
f
IN
= 1.0 MHz,
T
AMB
= 25
°
C
6.5
mA
I
DD
Supply Current (Dynamic)
10
26
mA
I
DD
Supply Current (Power-
Down)
12
100
μ
A
C
I
Input Pin Capacitance
3,
6
8
pF
C
O
Output Pin
Capacitance
6, 7, 12,
13
8
pF
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 V
DDEXT
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.
10
I
DD
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 values for supply currents, refer to Power Dissipation section.
12
See
ADSP-218x DSP Hardware Reference
for details.
13
Output pin capacitance is the capacitive load for any three-stated output pin.
Parameter
1
Description
Test Conditions
Min
Typ
Max
Unit
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.
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).
3
Applies to Output pins (BG, PMS, DMS, BMS, IOMS, CMS, RD, WR,
PWDACK, A0, DT0, DT1, CLKOUT, FL2–0, BGH).