Cypress CY8C21634 Manual De Usuario

Document Number: 38-12025  Rev. *O

Page 25 of 45

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

≤ T

A

 

≤ 85°C, 3.0V to 3.6V and -40°C ≤ T

A

 

≤ 85°C, or 2.4V to 3.0V and -40°C ≤ T

A

 

≤ 85°C, respectively. Typical parameters apply to

5V, 3.3V, or 2.7V at 25°C and are for design guidance only.

Vdd

IWRITE

Supply Voltage for Flash Write Operations

2.70

–

–

V

I

DDP

Supply Current During Programming or Verify

–

5

25

mA

V

ILP

Input Low Voltage During Programming or 

Verify

–

–

0.8

V

V

IHP

Input High Voltage During Programming or 

Verify

2.2

–

–

V

I

ILP

Input Current when Applying Vilp to P1[0] or 

P1[1] During Programming or Verify

–

–

0.2

mA

Driving internal pull down resistor.

I

IHP

Input Current when Applying Vihp to P1[0] or 

P1[1] During Programming or Verify

–

–

1.5

mA

Driving internal pull down resistor.

V

OLV

Output Low Voltage During Programming or 

Verify

–

–

Vss + 

0.75

V

V

OHV

Output High Voltage During Programming or 

Verify

Vdd

 

- 

1.0

–

Vdd

V

Flash

ENPB

Flash Endurance (per block)

50,000

–

–

–

Erase/write cycles per block.

Flash

ENT

Flash Endurance (total)

[11]

1,800,

000

–

–

–

Erase/write cycles.

Flash

DR

Flash Data Retention

10

–

–

Years

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 

AN2015

http://www.cypress.com

 under Application Notes for more 

information.