PRELIMINARY CY8CNP102B, CY8CNP102E
Document #: 001-43991 Rev. *D Page 21 of 38
AC Programming Specifications
AC I2C Specifications
Table 20. 3.3V AC Programming Specifications (CY8CNP102B)
Symbol Description Min Typ Max Units Notes
TRSCLK Rise Time of SCLK 1 – 20 ns
TFSCLK Fall Time of SCLK 1 – 20 ns
TSSCLK Data Set up Time to Falling Edge of SCLK 40 – – ns
THSCLK Data Hold Time from Falling Edge of SCLK 40 – – ns
FSCLK Frequency of SCLK 0 – 8 MHz
TERASEB Flash Erase Time (Block) –10 –ms
TWRITE Flash Block Write Time –10 –ms
TDSCLK3 Data Out Delay from Falling Edge of SCLK – – 50 ns 3.0V ≤ Vcc ≤ 3.6V
Table 21. 3.3V AC Characteristics of the I2C SDA and SCL Pins (CY8CNP102B)
Symbol Description Standard Mode Fast Mode Units
Min Max Min Max
FSCLI2C SCL Clock Frequency 0 100 0 400 kHz
THDSTAI2C Hold Time (repeated) START Condition. After this period, the
first clock pulse is generated.
4.0 –0.6–μs
TLOWI2C LOW Period of the SCL Clock 4.7 –1.3–μs
THIGHI2C HIGH Period of the SCL Clock 4.0 –0.6–μs
TSUSTAI2C Setup Time for a Repeated START Condition 4.7 –0.6–μs
THDDATI2C Data Hold Time 0 –0–μs
TSUDATI2C Data Setup Time 250 – 100[9] –ns
TSUSTOI2C Setup Time for STOP Condition 4.0 –0.6–μs
TBUFI2C Bus Free Time Between a STOP and START Condition 4.7 –1.3–μs
TSPI2C Pulse Width of spikes are suppressed by the input filter. – – 0 50 ns
Note
9. A Fast Mode I2C-bus device may be used in a Standard-Mode I2C-bus system, but the requirement tSUDAT ≥ 250 ns must then be met. This is automatically the
case if the device does not stretch the LOW period of the SCL signal. If such device does stretch the LOW period of the SCL signal, it must output the next data bit
to the SDA line trmax + tSU;DAT = 1000 + 250 = 1250 ns (according to the Standard Mode I2C bus specification) before the SCL line is released.
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