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PIC16CE623-04/SS Datasheet(PDF) 92 Page - Microchip Technology |
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PIC16CE623-04/SS Datasheet(HTML) 92 Page - Microchip Technology |
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92 / 108 page  PIC16CE62X DS40182A-page 92 Preliminary © 1998 Microchip Technology Inc. 13.5 EEPROM Timing TABLE 13-8: AC CHARACTERISTICS FIGURE 13-7: BUS TIMING DATA Parameter Symbol STANDARD MODE Vcc = 4.5 - 5.5V FAST MODE Units Remarks Min. Max. Min. Max. Clock frequency FCLK — 100 — 400 kHz Clock high time THIGH 4000 — 600 — ns Clock low time TLOW 4700 — 1300 — ns SDA and SCL rise time TR — 1000 — 300 ns (Note 1) SDA and SCL fall time TF — 300 — 300 ns (Note 1) START condition hold time THD:STA 4000 — 600 — ns After this period the first clock pulse is generated START condition setup time TSU:STA 4700 — 600 — ns Only relevant for repeated START condition Data input hold time THD:DAT 0 — 0 — ns (Note 2) Data input setup time TSU:DAT 250 — 100 — ns STOP condition setup time TSU:STO 4000 — 600 — ns Output valid from clock TAA — 3500 — 900 ns (Note 2) Bus free time TBUF 4700 — 1300 — ns Time the bus must be free before a new transmission can start Output fall time from VIH minimum to VIL maximum TOF — 250 20 +0.1 CB 250 ns (Note 1), CB ≤ 100 pF Input filter spike suppression (SDA and SCL pins) TSP — 50 — 50 ns (Note 3) Write cycle time TWR — 10 — 10 ms Byte or Page mode Endurance — 10M 1M — 10M 1M — cycles 25 °C, Vcc = 5.0V, Block Mode (Note 4) Note 1: Not 100% tested. CB = total capacitance of one bus line in pF. 2: As a transmitter, the device must provide an internal minimum delay time to bridge the undefined region (minimum 300 ns) of the falling edge of SCL to avoid unintended generation of START or STOP conditions. 3: The combined TSP and VHYS specifications are due to new Schmitt trigger inputs which provide improved noise spike suppression. This eliminates the need for a TI specification for standard operation. 4: This parameter is not tested but guaranteed by characterization. For endurance estimates in a specific appli- cation, please consult the Total Endurance Model which can be obtained on our website. SCL SDA IN SDA OUT THD:STA TSU:STA TF THIGH TR TSU:STO TSU:DAT THD:DAT TBUF TAA THD:STA TAA TSP TLOW 62X.bk Page 92 Tuesday, March 10, 1998 3:40 PM |
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