Automotive PSoC
®
4: PSoC
4000 Family Datasheet
Document Number: 001-92145 Rev. *E Page 18 of 31
Memory
System Resources
Power-on Reset (POR)
Table 15. Flash DC Specifications
Spec ID Parameter Description Min Typ Max Units Details/Conditions
SID173 V
PE
Erase and program voltage 1.71 – 5.5 V
Table 16. Flash AC Specifications
Spec ID Parameter Description Min Typ Max Units Details/Conditions
SID174 T
ROWWRITE
[9]
Row (block) write time (erase and
program)
– – 20 ms Row (block) = 128 bytes
SID175 T
ROWERASE
[9]
Row erase time – – 13 ms
SID176 T
ROWPROGRAM
[9]
Row program time after erase – – 7 ms
SID178 T
BULKERASE
[9]
Bulk erase time (16 KB) – – 15 ms
SID180
[10]
T
DEVPROG
[9]
Total device program time – – 7.5 seconds
SID181
[10]
F
END
Flash endurance 100 K – – cycles
SID182
[10]
F
RET
Flash retention. T
A
55 °C, 100 K
P/E cycles
20
[11]
– – years
SID182A
[10
]
Flash retention. T
A
85 °C, 10 K
P/E cycles
10
[12]
– – years
Table 17. Power On Reset (PRES)
Spec ID Parameter Description Min Typ Max Units Details/Conditions
SID.CLK#6 SR_POWER_UP Power supply slew rate 1 – 67 V/ms At power-up
SID185
[10]
V
RISEIPOR
Rising trip voltage 0.80 – 1.5 V
SID186
[10]
V
FALLIPOR
Falling trip voltage 0.70 – 1.4 V
Table 18. Brown-out Detect (BOD) for V
CCD
Spec ID Parameter Description Min Typ Max Units Details/Conditions
SID190
[10]
V
FALLPPOR
BOD trip voltage in active and
sleep modes
1.48 – 1.62 V
SID192
[10]
V
FALLDPSLP
BOD trip voltage in Deep Sleep 1.11 – 1.5 V
Notes
9. It can take as much as 20 milliseconds to write to Flash. During this time the device should not be Reset, or Flash operations will be interrupted and cannot be relied
on to have completed. Reset sources include the XRES pin, software resets, CPU lockup states and privilege violations, improper power supply levels, and watchdogs.
Make certain that these are not inadvertently activated.
10. Guaranteed by characterization.
11. Cypress provides a retention calculator to calculate the retention lifetime based on customers' individual temperature profiles for operation over the –40 °C to +105 °C
ambient temperature range. Contact customercare@cypress.com.
12. Cypress provides a retention calculator to calculate the retention lifetime based on customers' individual temperature profiles for operation over the –40 °C to +105 °C
ambient temperature range. Contact customercare@cypress.com.
