DSP56311 View Datasheet(PDF) - Freescale Semiconductor
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DSP56311 Datasheet PDF : 96 Pages
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DC Electrical Characteristics
2.3 DC Electrical Characteristics
Table 2-3. DC Electrical Characteristics7
Characteristics
Symbol
Min
Typ
Max
Unit
Supply voltage:
• Core (VCCQL) and PLL (VCCP)
• I/O (VCCQH, VCCA, VCCD, VCCC, VCCH, and VCCS)
Input high voltage
• D[0–23], BG, BB, TA
• MOD/IRQ1, RESET, PINIT/NMI and all
JTAG/ESSI/SCI/Timer/HI08 pins
• EXTAL8
Input low voltage
• D[0–23], BG, BB, TA, MOD/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)
1.7
1.8
3.0
3.3
VIH
2.0
—
VIHP
2.0
—
VIHX
0.8 × VCCQH
—
VIL
–0.3
—
VILP
–0.3
—
VILX
–0.3
—
IIN
–10
—
ITSI
–10
—
1.9
V
3.6
V
VCCQH + 0.3
V
VCCQH + 0.3
V
VCCQH
V
0.8
V
0.8
V
0.2 × VCCQH
V
10
µA
10
µA
Output high voltage
• TTL (IOH = –0.4 mA)5,7
• CMOS (IOH = –10 µA)5
VOH
2.4
—
VCC – 0.01
—
—
V
—
V
Output low voltage
• TTL (IOL = 3.0 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
VOL
ICCI
ICCW
ICCS
—
—
0.4
V
—
—
0.01
V
—
150
—
7. 5
—
100
—
mA
—
mA
—
µA
PLL supply current
—
1
2.5
mA
Input capacitance5
CIN
—
—
10
pF
Notes: 1. Refers to MODA/IRQA, MODB/IRQB, MODC/IRQC, and MODD/IRQD pins.
2. Section 4.3 provides a formula to compute the estimated current requirements in Normal mode. To obtain these results, all
inputs must be terminated (that is, not allowed to float). Measurements are based on synthetic intensive DSP benchmarks (see
Appendix A). The power consumption numbers in this specification are 90 percent of the measured results of this benchmark.
This reflects typical DSP applications. Typical internal supply current is measured with VCCQP = 3.3 V,
VCC = 1.8 V at TJ = 100°C.
3. To obtain these results, all inputs must be terminated (that is, not allowed to float). PLL and XTAL signals are disabled during
Stop state.
4. DC current in Stop mode is evaluated based on measurements. To obtain these results, all inputs not disconnected at Stop
mode must be terminated (that is, not allowed to float).
5. Periodically sampled and not 100 percent tested.
6. VCCQH = 3.3 V ± 0.3 V, VCC = 1.8 V ± 0.1 V; TJ = –40°C to +100 °C, CL = 50 pF
7. This characteristic does not apply to XTAL and PCAP.
8. Driving EXTAL to the low VIHX or the high VILX value may cause additional power consumption (DC current). To minimize
power consumption, the minimum VIHX should be no lower than
0.9 × VCCQH and the maximum VILX should be no higher than 0.1 × VCCQH.
DSP56311 Technical Data, Rev. 8
Freescale Semiconductor
2-3
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