Cypress CY8C20396, CY8C20x46 manual DC POR and LVD Specifications, DC Programming Specifications

CY8C20x36/46/66, CY8C20396

DC POR and LVD Specifications

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

Table 21. DC POR and LVD Specifications

Symbol	Description	Conditions	Min	Typ	Max	Units
	Vdd Value for PPOR Trip	Vdd must be greater than or equal to
VPPOR0	PORLEV[1:0] = 00b, HPOR = 0	1.71V during startup, reset from the XRES	1.61	1.66	1.71	V
VPPOR1	PORLEV[1:0] = 00b, HPOR = 1	pin, or reset from watchdog.		2.36	2.41	V
VPPOR2	PORLEV[1:0] = 01b, HPOR = 1		–	2.60	2.66	V
VPPOR3	PORLEV[1:0] = 10b, HPOR = 1			2.82	2.95	V
VLVD0	Vdd Value for LVD Trip		2.40[6]		2.51	V
	VM[2:0] = 000b			2.45
VLVD1	VM[2:0] = 001b		2.64[7]	2.71	2.78	V
VLVD2	VM[2:0] = 010b		2.85[8]	2.92	2.99	V
VLVD3	VM[2:0] = 011b		2.95	3.02	3.09	V
VLVD4	VM[2:0] = 100b		3.06	3.13	3.20	V
VLVD5	VM[2:0] = 101b		1.84	1.90	2.32	V
VLVD6	VM[2:0] = 110b		1.75[9]	1.80	1.84	V
VLVD7	VM[2:0] = 111b		4.62	4.73	4.83	V

DC Programming Specifications

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

Table 22. DC Programming Specifications

Symbol	Description	Conditions	Min	Typ	Max	Units
VddIWRITE	Supply Voltage for Flash Write		1.71	–	–	V
	Operations
IDDP	Supply Current During		–	5	25	mA
	Programming or Verify
VILP	Input Low Voltage During	See the appropriate DC General Purpose	–	–	VIL	V
	Programming or Verify	IO Specifications on page 18
VIHP	Input High Voltage During	See appropriate DC General Purpose IO	VIH	–	–	V
	Programming or Verify	Specifications on page 18 table on pages
		15 or 16
IILP	Input Current when Applying Vilp	Driving internal pull down resistor	–	–	0.2	mA
	to P1[0] or P1[1] During
	Programming or Verify
IIHP	Input Current when Applying Vihp	Driving internal pull down resistor	–	–	1.5	mA
	to P1[0] or P1[1] During
	Programming or Verify
VOLP	Output Low Voltage During		–	–	Vss + 0.75	V
	Programming or Verify
VOHP	Output High Voltage During	See appropriate DC General Purpose IO	VOH	–	Vdd	V
	Programming or Verify	Specifications on page 18 table on page
		16. For Vdd > 3V use VOH4 in Table 13 on
		page 17.
FlashENPB	Flash Write Endurance	Erase/write cycles per block	50,000	–	–	-
FlashDR	Flash Data Retention	Following maximum Flash write cycles;	10	20	–	Years
		ambient temperature of 55°C

Notes

6.Always greater than 50 mV above VPPOR1 voltage for falling supply.

7.Always greater than 50 mV above VPPOR2 voltage for falling supply.

8.Always greater than 50 mV above VPPOR3 voltage for falling supply.

9.Always greater than 50 mV above VPPOR0 voltage for falling supply.

Document Number: 001-12696 Rev. *D Page 21 of 34

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