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DSP56309 Datasheet, PDF (22/108 Pages) Freescale Semiconductor, Inc – 24-Bit Digital Signal Processor
Specifications
2.3 Thermal Characteristics
Table 2-2. Thermal Characteristics
Characteristic
Symbol
TQFP Value
MAP-BGA3
Value
MAP-BGA4
Value
Unit
Junction-to-ambient thermal resistance1
RθJA or θJA
49.3
49.4
28.5
°C/W
Junction-to-case thermal resistance2
RθJC or θJC
8.2
12.0
—
°C/W
Thermal characterization parameter
ΨJT
5.5
2.0
—
°C/W
Notes: 1. Junction-to-ambient thermal resistance is based on measurements on a horizontal single-sided printed circuit board per
JEDEC Specification JESD51-3.
2. Junction-to-case thermal resistance is based on measurements using a cold plate per SEMI G30-88, with the exception that
the cold plate temperature is used for the case temperature.
3. These are simulated values. See note 1 for test board conditions.
4. These are simulated values. The test board has two 2-ounce signal layers and two 1-ounce solid ground planes internal to the
test board.
2.4 DC Electrical Characteristics
Table 2-3. DC Electrical Characteristics6
Characteristics
Symbol
Min
Typ
Supply voltage
Input high voltage
• D[0–23], BG, BB, TA
• MOD1/IRQ1, RESET, PINIT/NMI and all
JTAG/ESSI/SCI/Timer/HI08 pins
• EXTAL8
Input low voltage
• D[0–23], BG, BB, TA, MOD1/IRQ1, RESET, PINIT
• All JTAG/ESSI/SCI/Timer/HI08 pins
• EXTAL8
Input leakage current
High impedance (off-state) input current (@ 2.4 V / 0.4 V)
Output high voltage
• TTL (IOH = –0.4 mA)5,7
• CMOS (IOH = –10 µA)5
Output low voltage
• TTL (IOL = 1.6 mA, open-drain pins IOL = 6.7 mA)5,7
• CMOS (IOL = 10 µA)5
Internal supply current2:
• In Normal mode
• In Wait mode3
• In Stop mode4
PLL supply current
Input capacitance5
VCC
3.0
3.3
VIH
2.0
—
VIHP
2.0
—
VIHX
0.8 × VCC
—
VIL
–0.3
—
VILP
–0.3
—
VILX
–0.3
—
IIN
–10
—
ITSI
–10
—
VOH
2.4
—
VCC – 0.01
—
VOL
—
—
—
—
ICCI
—
127
ICCW
—
7.5
ICCS
—
100
—
1
CIN
—
—
Max
3.6
Unit
V
VCC
V
5.25
V
VCC
V
0.8
V
0.8
V
0.2 × VCC
V
10
µA
10
µA
—
V
—
V
0.4
V
0.01
V
—
mA
—
mA
—
µA
2.5
mA
10
pF
DSP56309 Technical Data, Rev. 7
2-2
Freescale Semiconductor