Cypress CY8C21334, CY8C21634, CY8C21234, CY8C21434, CY8C21534 manual DC Programming Specifications

CY8C21634, CY8C21534

CY8C21434, CY8C21334, CY8C21234

DC Programming Specifications

Table 24 lists the guaranteed maximum and minimum specifications for the voltage and temperature ranges: 4.75V to 5.25V and -40°C

≤TA ≤ 85°C, 3.0V to 3.6V and -40°C ≤ TA ≤ 85°C, or 2.4V to 3.0V and -40°C ≤ TA ≤ 85°C, respectively. Typical parameters apply to 5V, 3.3V, or 2.7V at 25°C and are for design guidance only.

Table 24. DC Programming Specifications

Symbol	Description	Min	Typ	Max	Units	Notes
VddIWRITE	Supply Voltage for Flash Write Operations	2.70	–	–	V
IDDP	Supply Current During Programming or Verify	–	5	25	mA
VILP	Input Low Voltage During Programming or	–	–	0.8	V
	Verify
VIHP	Input High Voltage During Programming or	2.2	–	–	V
	Verify
IILP	Input Current when Applying Vilp to P1[0] or	–	–	0.2	mA	Driving internal pull down resistor.
	P1[1] During Programming or Verify
IIHP	Input Current when Applying Vihp to P1[0] or	–	–	1.5	mA	Driving internal pull down resistor.
	P1[1] During Programming or Verify
VOLV	Output Low Voltage During Programming or	–	–	Vss +	V
	Verify			0.75
VOHV	Output High Voltage During Programming or	Vdd -	–	Vdd	V
	Verify	1.0
FlashENPB	Flash Endurance (per block)	50,000	–	–	–	Erase/write cycles per block.
FlashENT	Flash Endurance (total)[11]	1,800,	–	–	–	Erase/write cycles.
		000
FlashDR	Flash Data Retention	10	–	–	Years

Note

11.A maximum of 36 x 50,000 block endurance cycles is allowed. This may be balanced between operations on 36x1 blocks of 50,000 maximum cycles each, 36x2 blocks of 25,000 maximum cycles each, or 36x4 blocks of 12,500 maximum cycles each (to limit the total number of cycles to 36x50,000 and that no single block ever sees more than 50,000 cycles). For the full industrial range, the user must employ a temperature sensor user module (FlashTemp) and feed the result to the temperature argument before writing. Refer to the Flash APIs Application Note AN2015 at http://www.cypress.com under Application Notes for more information.

Document Number: 38-12025 Rev. *O Page 25 of 45

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