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STE2001DIE1 Scheda tecnica(PDF) 6 Page - STMicroelectronics |
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STE2001DIE1 Scheda tecnica(HTML) 6 Page - STMicroelectronics |
6 / 36 page STE2001 6/36 Notes: 1. 2. RES may be LOW or HIGH before VDD1 goes HIGH. 3. If Tw(RES) is longer than 500ns (typical) a reset may be generated. 4. All timing values are valid within the operating supply voltage and ambient temperature ranges and referenced to VIL and VIH with an input voltage swing of VSS to VDD 5. The rise and fall times specified here refer to the driver device and are part of general Hs-mode specification. 6. The device inputs SDA and SCL are filtered and will reject any spike on the bus-lines of with TSW 7. Cb is the capacitive load for each bus line. 8. TH5 is the time from the previous SCLK positive edge to the negative edge of SCE 9. For bus line loads Cb between 100 and 400pF the timing parameters must be linearly interpolated 10.CVLCD is the filtering capacitor on VLCDOUT 11.If Tw(RES) is shorter than max. value a reset pulse is rejected. TfDA Cb=100pF 25 ns TfDA Cb=400pF 120 ns Cb Capacitive load for SDAH and SCLH 100 400 pF Cb Capacitive load for SDAH + SDA line and SCLH + SCL line 400 pF TSW note 5 10 ns PARALLEL INTERFACE TCY(EN) Enable Cycle Time VDD = 4.5V; Write 125 ns TW(EN) Enable Pulse width VDD = 4.5V; Write 60 ns TSU(A) Address Set-up Time VDD = 4.5V; Write 30 ns TH(A) Address Hold Time VDD = 4.5V; Write 50 ns TSU(D) Data Set-Up Time VDD = 4.5V; Write 30 ns TH(D) Data Hold Time VDD = 4.5V; Write 50 ns SERIAL INTERFACE FSCLK Clock Frequency VDD = 4.5V 8 MHz VDD1 = 1.8V 5 MHz TCYC Clock Cycle SCLK VDD = 4.5V 125 ns TPWH1 SCLK pulse width HIGH VDD = 4.5V 70 ns TPWL1 SCLK Pulse width LOW VDD = 4.5V 70 ns TS2 SCE setup time 50 ns TH2 SCE hold time 50 ns TPWH2 SCE minimum high time 60 ns TH5 SCE start hold time Note 8 60 ns TS3 SD/C setup time 60 ns TH3 SD/C hold time 40 ns TS4 SDIN setup time 40 ns TH4 SDIN hold time 40 ns Symbol Parameter Test Condition Min. Typ. Max. Unit F frame f osc 520 ---------- = ELECTRICAL CHARACTERISTICS (continued) |
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