DSP56L307 Datasheet, PDF (23/104 Pages) Motorola, Inc – 24-Bit Digital Signal Processor

DC Electrical Characteristics
2.3 DC Electrical Characteristics
Table 2-3. DC Electrical Characteristics⁷
Characteristics
Symbol
Min
Typ
Max
Unit
Supply voltage:
• Core (V_CCQL) and PLL (V_CCP)
• I/O (V_CCQH, V_CCA, V_CCD, V_CCC, V_CCH, and V_CCS)
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
V_IH
2.0
—
V_IHP
2.0
—
V_IHX
0.8 × V_CCQH
—
V_IL
–0.3
—
V_ILP
–0.3
—
V_ILX
–0.3
—
I_IN
–10
—
I_TSI
–10
—
1.9
V
3.6
V
V_CCQH + 0.3
V
V_CCQH + 0.3
V
V_CCQH
V
0.8
V
0.8
V
0.2 × V_CCQH
V
10
µA
10
µA
Output high voltage
• TTL (I_OH = –0.4 mA)^5,7
• CMOS (I_OH = –10 µA)⁵
V_OH
2.4
—
V_CC – 0.01
—
—
V
—
V
Output low voltage
• TTL (I_OL = 3.0 mA, open-drain pins I_OL = 6.7 mA)^5,7
• CMOS (I_OL = 10 µA)⁵
Internal supply current²:
• In Normal mode
• In Wait mode³
• In Stop mode⁴
V_OL
I_CCI
I_CCW
I_CCS
—
—
0.4
V
—
—
0.01
V
—
150
—
7. 5
—
100
—
mA
—
mA
—
µA
PLL supply current
—
1
2.5
mA
Input capacitance⁵
C_IN
—
—
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 V_CCQP = 3.3 V,
V_CC = 1.8 V at T_J = 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. V_CCQH = 3.3 V ± 0.3 V, V_CC = 1.8 V ± 0.1 V; T_J = –40°C to +100 °C, C_L = 50 pF
7. This characteristic does not apply to XTAL and PCAP.
8. Driving EXTAL to the low V_IHX or the high V_ILX value may cause additional power consumption (DC current). To minimize
power consumption, the minimum V_IHX should be no lower than
0.9 × V_CCQH and the maximum V_ILX should be no higher than 0.1 × V_CCQH.
DSP56L307 Technical Data, Rev. 6
Freescale Semiconductor
2-3