CY7C6431x
CY7C64345, CY7C6435x
Document Number: 001-12394 Rev *G Page 18 of 28

DC Programming Specifications

Tabl e 13 lists guaranteed maximum and minimum specifications for the entire voltage and temperature ranges.
AC Electrical Characteristics

AC Chip Level Specifications

The following tables list guaranteed maximum and minimum specifications for the entire voltage and temperature ranges.
Table 13. DC Programming Specifications
Symbol Description Min Typ Max Units
VddIWRITE Supply Voltage for Flash Write Operations 3.0 – – V
IDDP Supply Current During Programming or Verify – 5 25 mA
VILP Input Low Voltage During Programming or Verify – – VIL V
VIHP Input High Voltage During Programming or Verify VIH – – V
IILP Input Current when Applying Vilp to P1[0] or P1[1] During
Programming or Verify(8) – – 0.2 mA
IIHP Input Current when Applying Vihp to P1[0] or P1[1] During
Programming or Verify(8) – – 1.5 mA
VOLV Output Low Voltage During Programming or Verify – – Vss + 0.75 V
VOHV Output High Voltage During Programming or Verify Vdd - 0.9 –Vdd V
FlashENPB Flash Write Endurance(9) 50,000 – – Cycles
FlashDR Flash Data Retention(10) 10 20 –Ye ars
Table 14. AC Chip Level Specifications
Symbol Description Min Typ Max Units
FMAX Maximum Operating Frequency(11) 24 – – MHz
FCPU Maximum Processing Frequency(12) 24 – – MHz
F32K1 Internal Low Speed Oscillator Frequency 19 32 50 kHz
FIMO24 Internal Main Oscillator Stability for 24 MHz ± 5%(13) 22.8 24 25.2 MHz
FIMO12 Internal Main Oscillator Stability for 12 MHz(13) 11.4 12 12.6 MHz
FIMO6 Internal Main Oscillator Stability for 6 MHz(13) 5.7 6.0 6.3 MHz
DCIMO Duty Cycle of IMO 40 50 60 %
TRAMP Supply Ramp Time 0 – – μs
Notes
8. Driving internal pull down resistor.
9. Erase/write cycles per block.
10.Following maximum Flash write cycles at Tamb = 55C and Tj = 70C
11.Vdd = 3.0V and TJ = 85oC, digital clocking functions.
12.Vdd = 3.0V and TJ = 85oC, CPU speed.
13.Trimmed for 3.3V operation using factory trim values.
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