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STPIC44L02 数据表(PDF) 7 Page - STMicroelectronics |
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STPIC44L02 数据表(HTML) 7 Page - STMicroelectronics |
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7 / 21 page ![]() STPIC44L02 7/21 SWITCHING CHARACTERISTICS (VCC=5V, VBAT=5V, TC= 25°C, unless otherwise specified.) Note 1: The td1 is referred to the falling edge of the first clock after the CS falls down Symbol Parameter Test Conditions Min. Typ. Max. Unit t(STBFM) Short to Battery, Shorted Load, Open Load Fault Mask Time (see figures 16, 17) 60 µs t(STBDG) Short to Battery, Shorted Load, Deglitch Time (see figures 16, 17) 12 µs tPLH Propagation Turn-On Delay Time, CS or IN0-IN3 to Gate0-Gate3 C(gate) = 400pF 3.5 µs tPHL Propagation Turn-Off Delay Time, CS or IN0-IN3 to Gate0-Gate3 C(gate) = 400pF 4 µs tr1 Rise Time, Gate0-Gate3 C(gate) = 400pF 1.5 µs tf1 Fall Time, Gate0-Gate3 C(gate) = 400pF 2 µs f(SCLK) Serial Clock Frequency 10 MHz trf(SB) Refresh Time Short to Battery (see figure 16) 10 ms tW) Refresh pulse width Short to Battery (see figure 16) 68 µs tsu1 Setup Time CS ↓ to SCLK ↓ (see note 1) (see figure 4) 10 ns tpd1 Propagation Delay Time CS to SDO Valid RL =10KΩ CL = 200pF (see figure 6) 40 ns tpd2 Propagation Delay Time SCLK to SDO Valid 20 ns tpd3 Propagation Delay Time CS to SDO 3-State RL =10KΩ CL = 50pF (see figure 6) 2 µs tr2 Rise Time, SDO 3-State to SDO Valid RL =10KΩ to GND CL = 200pF Over Battery Fault (see figure 7) 30 ns tf2 Fall Time, SDO 3-State to SDO Valid RL =10KΩ to GND CL = 200pF No Fault (see figure 8) 20 ns tr3 Rise Time, FLT RL =10KΩ CL = 50pF (see figure 9) 1.2 µs tf3 Rise Time, FLT RL =10KΩ CL = 50pF (see figure 9) 15 ns |
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