Datasheet

Rev. C | Page 22 of 76 | July 2013
ADSP-21477/ADSP-21478/ADSP-21479
ELECTRICAL CHARACTERISTICS
200 MHz 266 MHz 300 MHz
UnitParameter
1
Description Test Conditions Min Max Min Max Min Max
V
OH
2
High Level Output Voltage @ V
DD_EXT
= Min,
I
OH
= –1.0 mA
3
2.4 2.4 2.4 V
V
OL
2
Low Level Output Voltage @ V
DD_EXT
= Min,
I
OL
= 1.0 mA
3
0.4 0.4 0.4 V
I
IH
4, 5
High Level Input Current @ V
DD_EXT
= Max,
V
IN
= V
DD_EXT
Max
10 10 10 µA
I
IL
4
Low Level Input Current @ V
DD_EXT
= Max, V
IN
= 0 V –10 –10 –10 µA
I
ILPU
5
Low Level Input Current
Pull-up
@ V
DD_EXT
= Max, V
IN
= 0 V 200 200 200 µA
I
OZH
6, 7
Three-State Leakage
Current
@ V
DD_EXT
= Max,
V
IN
= V
DD_EXT
Max
10 10 10 µA
I
OZL
6
Three-State Leakage
Current
@ V
DD_EXT
= Max, V
IN
= 0 V –10 –10 –10 µA
I
OZLPU
7
Three-State Leakage
Current Pull-up
@ V
DD_EXT
= Max, V
IN
= 0 V 200 200 200 µA
I
OZHPD
8
Three-State Leakage
Current Pull-down
@ V
DD_EXT
= Max,
V
IN
= V
DD_EXT
Max
200 200 200 µA
I
DD_RTC
V
DD_RTC
Current @ V
DD_RTC
= 3.0,
T
J
= 25°C
0.76 0.76 0.76 µA
I
DD_INT
9
Supply Current (Internal) f
CCLK
> 0 MHz Table 14
+
Table 15
× ASF
Table 14
+
Table 15
× ASF
Table 14
+
Table 15
× ASF
mA
C
IN
10, 11
Input Capacitance T
CASE
= 25°C 5 5 5 pF
1
Specifications subject to change without notice.
2
Applies to output and bidirectional pins: ADDR23-0, DATA15-0, AMI_RD, AMI_WR, FLAG3–0, DAI_Px, DPI_Px, EMU, TDO, RESETOUT,MLBSIG, MLBDAT, MLBDO,
MLBSO, SDRAS, SDCAS, SDWE, SDCKE, SDA10, SDDQM, MS0-1.
3
See Output Drive Currents on Page 65 for typical drive current capabilities.
4
Applies to input pins: BOOT_CFGx, CLK_CFGx, TCK, RESET, CLKIN.
5
Applies to input pins with internal pull-ups: TRST, TMS, TDI.
6
Applies to three-statable pins: TDO, MLBDAT, MLBSIG, MLBDO, and MLBSO.
7
Applies to three-statable pins with pull-ups: DAI_Px, DPI_Px, EMU.
8
Applies to three-statable pin with pull-down: SDCLK.
9
See Engineer-to-Engineer Note “Estimating Power Dissipation for ADSP-214xx SHARC Processors” for further information.
10
Applies to all signal pins.
11
Guaranteed, but not tested.