Cypress CY8C24123A Manual De Usuario

Descargar
Página de 56
CY8C24123A
CY8C24223A, CY8C24423A
Document Number: 38-12028  Rev. *I
Page 31 of 56
DC Programming Specifications
 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, and 2.7V at 25°C and are for design guidance only. 
Table 30.  DC Programming Specifications
Symbol
Description
Min
Typ
Max
Units
Notes
Vdd
IWRIT
E
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
2.1
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
ENP
B
Flash Endurance (per block)
50,000
Erase/write cycles per 
block
Flash
ENT
Flash Endurance (total)
a
a. 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 
http://www.cypress.com
 under Application Notes for more 
information.
1,800,000
Erase/write cycles
Flash
DR
Flash Data Retention
10
Years