ADSP-BF548_15 Datasheet, PDF (38/102 Pages) Analog Devices – Blackfin Embedded Processor

ADSP-BF542/ADSP-BF544/ADSP-BF547/ADSP-BF548/ADSP-BF549
13_{See the ADSP-BF54x Blackfin Processor Hardware Reference Manual for definition of sleep, deep sleep, and hibernate operating modes.}
14_{Includes current on VDDEXT, VDDUSB, VDDVR, and VDDDDR supplies. Clock inputs are tied high or low.}
15_{Guaranteed maximum specifications.}
16_{Unit for VDDINT is V (volts). Unit for fSCLK is MHz. Example: 1.2 V, 133 MHz would be 0.77 × 1.2 × 133 = 122.9 mA added to IDDDEEPSLEEP.}
17_{See Table 18 for the list of IDDINT power vectors covered.}
Total power dissipation has two components:
• Static, including leakage current
• Dynamic, due to transistor switching characteristics
Many operating conditions can also affect power dissipation,
including temperature, voltage, operating frequency, and pro-
cessor activity. Electrical Characteristics on Page 36 shows the
current dissipation for internal circuitry (V_DDINT). I_DDDEEPSLEEP
specifies static power dissipation as a function of voltage
(V_DDINT) and temperature (see Table 16 and Table 17), and
I_DDINT specifies the total power specification for the listed test
conditions, including the dynamic component as a function of
voltage (V_DDINT) and frequency (Table 19).
There are two parts to the dynamic component. The first part is
due to transistor switching in the core clock (CCLK) domain.
This part is subject to an activity scaling factor (ASF) which rep-
resents application code running on the processor core and
L1/L2 memories (Table 18). The ASF is combined with the
CCLK frequency and V_DDINT dependent data in Table 19 to cal-
culate this part. The second part is due to transistor switching in
the system clock (SCLK) domain, which is included in the I_DDINT
specification equation.
Table 16. Static Current—Low Power Process (mA)¹
T_J (°C)²
–40
0.90 V
11.9
0.95 V
13.5
1.00 V
15.5
1.05 V
17.7
1.10 V
20.3
Voltage (V_DDINT)²
1.15 V 1.20 V 1.25 V
23.3 26.8 30.6
0
20.1 22.3 24.7 27.8 31.1 34.9 39.3 44.2
25
31.2 34.2 37.5 41.3 45.6 50.3 55.7 61.7
45
47.0 51.0 55.5 60.6 66.0 72.0 78.8 86.1
55
58.6 63.1 68.3 74.1 80.3 87.1 94.9 103.0
70
80.7 86.6 93.0 100.2 108.1 116.7 125.9 136.0
85
107.0 114.3 122.5 131.5 141.2 151.7 163.1 175.3
100 153.9 163.0 173.3 184.8 197.0 210.0 224.1 239.0
105 171.7 181.5 192.7 205.1 218.3 232.4 247.5 263.6
115 210.1 221.4 234.2 248.6 263.7 279.9 297.3 311.0
125 257.9 270.9 285.9 302.5 314.6 334.0 354.3 375.7
1 _{Values are guaranteed maximum IDDDEEPSLEEP for 400 MHz speed-grade devices.}
2 _{Valid temperature and voltage ranges are model-specific. See Operating Conditions on Page 34.}
1.30 V
35.0
49.6
68.2
94.2
112.0
146.8
188.5
255.1
280.9
331.1
399.2
1.35 V
39.9
55.7
75.4
102.9
122.0
158.7
202.7
272.4
299.3
352.5
423.8
1.38 V
43.2
59.8
80.3
108.9
128.4
166.4
211.8
283.4
308.7
366.3
439.6
1.40 V
45.5
62.5
83.6
112.8
132.8
171.6
218.0
290.8
314.9
N/A
N/A
1.43 V
49.5
67.2
88.6
118.2
140.0
179.5
226.7
300.6
325.7
N/A
N/A
Table 17. Static Current—Automotive 400 MHz and All 533 MHz/600 MHz Speed Grade Devices (mA)¹
Voltage (V_DDINT)²
T_J (°C)² _{0.90 V 0.95 V 1.00 V 1.05 V 1.10 V 1.15 V 1.20 V 1.25 V 1.30 V 1.35 V}
–40 19.7 22.1 24.8 27.9 31.4 35.4 39.9 45.0 50.6 57.0
0
45.2 49.9 55.2 61.3 67.9 75.3 83.5 92.6 102.6 113.6
25
80.0 87.5 96.2 105.8 116.4 127.9 140.4 154.1 169.2 185.4
45
124.2 134.8 147.1 160.7 175.3 191.2 208.6 227.3 247.6 269.6
55
154.6 167.2 181.7 197.7 214.9 233.8 254.2 276.1 299.7 325.9
70
209.8 225.6 243.9 264.1 285.8 309.4 334.8 363.5 394.3 427.7
85
281.8 301.3 323.5 350.2 378.5 408.9 442.1 477.9 516.5 557.5
100 366.5 390.5 419.4 452.1 486.9 524.4 564.8 608.2 654.8 704.7
105 403.8 428.3 459.5 494.3 531.7 571.9 614.9 661.5 711.1 763.9
1 _{Values are guaranteed maximum IDDDEEPSLEEP for automotive 400 MHz and all 533 MHz and 600 MHz speed grade devices.}
2 _{Valid temperature and voltage ranges are model-specific. See Operating Conditions on Page 34.}
1.38 V
61.2
121.0
196.1
284.0
343.1
449.4
584.2
737.0
798.5
1.40 V
64.0
125.8
203.3
293.6
354.6
463.9
602.0
758.5
821.6
1.43 V
70.4
135.0
218.0
312.0
374.0
489.0
629.0
793.0
864.0
Rev. E | Page 38 of 102 | March 2014