Cypress Semiconductor CY8C24423A Especificaciones descargar pdf (Pagina 25)

CY8C24223A, CY8C24423A

Document Number: 001-52469 Rev. *H Page 25 of 50

DC POR and LVD Specifications

Tab le 19 lists the guaranteed maximum and minimum specifications for the voltage and temperature ranges: 4.75 V to 5.25 V and

–40 °C  T

 85 °C, 3.0 V to 3.6 V and –40 °C  T

 85 °C, respectively. Typical parameters apply to 5 V and 3.3 V at 25 °C and

are for design guidance only.

Note The bits PORLEV and VM in the following table refer to bits in the VLT_CR register. See the PSoC Programmable

System-on-Chip Technical Reference Manual for more information on the VLT_CR register.

Table 19. DC POR and LVD Specifications

Symbol Description Min Typ Max Units Notes

PPOR0

PPOR1

PPOR2

value for PPOR trip

PORLEV[1:0] = 00b

PORLEV[1:0] = 01b

PORLEV[1:0] = 10b

–

2.36

2.82

4.55

2.40

2.95

4.70

must be greater than or

equal to 2.5 V during startup,

reset from the XRES pin, or

reset from Watchdog.

LVD0

LVD1

LVD2

LVD3

LVD4

LVD5

LVD6

LVD7

value for LVD trip

VM[2:0] = 000b

VM[2:0] = 001b

VM[2:0] = 010b

VM[2:0] = 011b

VM[2:0] = 100b

VM[2:0] = 101b

VM[2:0] = 110b

VM[2:0] = 111b

2.40

2.85

2.95

3.06

4.37

4.50

4.62

4.71

2.45

2.92

3.02

3.13

4.48

4.64

4.73

4.81

2.51

[8]

2.99

[9]

3.09

3.20

4.55

4.75

4.83

4.95

Notes

8. Always greater than 50 mV above V

PPOR

(PORLEV=00) for falling supply.

9. Always greater than 50 mV above V

PPOR

(PORLEV=01) for falling supply.

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