Cypress CY8C20x36, CY8C20x46 AC Chip-Level Specifications, AC General Purpose IO Specifications

CY8C20x36/46/66, CY8C20396

AC Chip-Level Specifications

The following table lists guaranteed maximum and minimum specifications for the entire voltage and temperature ranges.

Table 23. AC Chip-Level Specifications

Symbol	Description	Conditions	Min	Typ	Max	Units
FMAX	Maximum Operating Frequency		24	–	–	MHz
FCPU	Maximum Processing Frequency		24	–	–	MHz
F32K1	Internal Low Speed Oscillator Frequency		19	32	50	kHz
FIMO24	Internal Main Oscillator Frequency at 24		22.8	24	25.2	MHz
	MHz Setting
FIMO12	Internal Main Oscillator Frequency at 12		11.4	12	12.6	MHz
	MHz Setting
FIMO6	Internal Main Oscillator Frequency at 6		5.7	6.0	6.3	MHz
	MHz Setting
DCIMO	Duty Cycle of IMO		40	50	60	%
TRAMP	Supply Ramp Time		0	–	–	μs
TXRST	External Reset Pulse Width at Power Up	After supply voltage is valid	1			ms
TXRST2	External Reset Pulse Width after Power	Applies after part has booted	10			μs
	Up

AC General Purpose IO Specifications

The following table lists guaranteed maximum and minimum specifications for the entire voltage and temperature ranges.

Table 24. AC GPIO Specifications

Symbol	Description	Conditions	Min	Typ	Max	Units
FGPIO	GPIO Operating Frequency	Normal Strong Mode Port 0, 1	0	–	6 MHz for	MHz
					1.71V<Vdd<2.4V
			0	–	12 MHz for
					2.4V<Vdd<5.5V
TRise23	Rise Time, Strong Mode, Cload = 50 pF	Vdd = 3.0 to 3.6V, 10% – 90%	15	–	80	ns
	Ports 2 or 3
TRise23L	Rise Time, Strong Mode Low Supply,	Vdd = 1.71 to 3.0V, 10% – 90%	15	–	80	ns
	Cload = 50 pF, Ports 2 or 3
TRise01	Rise Time, Strong Mode, Cload = 50 pF	Vdd = 3.0 to 3.6V, 10% – 90%	10	–	50	ns
	Ports 0 or 1	LDO enabled or disabled
TRise01L	Rise Time, Strong Mode Low Supply,	Vdd = 1.71 to 3.0V, 10% – 90%	10	–	80	ns
	Cload = 50 pF, Ports 0 or 1	LDO enabled or disabled
TFall	Fall Time, Strong Mode, Cload = 50 pF	Vdd = 3.0 to 3.6V, 10% – 90%	10	–	50	ns
	All Ports
TFallL	Fall Time, Strong Mode Low Supply,	Vdd = 1.71 to 3.0V, 10% – 90%	10	–	70	ns
	Cload = 50 pF, All Ports

Document Number: 001-12696 Rev. *D Page 22 of 34

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