User manual

CY8C27143, CY8C27243
CY8C27443, CY8C27543, CY8C27643
Document Number: 38-12012 Rev. *O Page 30 of 53
DC POR and LVD Specifications
The following table lists guaranteed maximum and minimum specifications for the voltage and temperature ranges: 4.75V to 5.25V
and -40°C ≤ T
A
≤ 85°C, or 3.0V to 3.6V and -40°C ≤ T
A
≤ 85°C, respectively. Typical parameters apply to 5V and 3.3V 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 29. DC POR and LVD Specifications
Symbol Description Min Typ Max Unit Notes
V
PPOR0R
V
PPOR1R
V
PPOR2R
Vdd Value for PPOR Trip (positive ramp)
PORLEV[1:0] = 00b
PORLEV[1:0] = 01b
PORLEV[1:0] = 10b
–
–
–
2.91
4.39
4.55
–
–
–
V
V
V
Vdd must be greater than or equal
to 2.5V during startup, reset from
the XRES pin, or reset from
Watchdog.
V
PPOR0
V
PPOR1
V
PPOR2
Vdd Value for PPOR Trip (negative ramp)
PORLEV[1:0] = 00b
PORLEV[1:0] = 01b
PORLEV[1:0] = 10b
–
–
–
2.82
4.39
4.55
–
–
–
V
V
V
V
PH0
V
PH1
V
PH2
PPOR Hysteresis
PORLEV[1:0] = 00b
PORLEV[1:0] = 01b
PORLEV[1:0] = 10b
–
–
–
92
0
0
–
–
–
mV
mV
mV
V
LVD0
V
LVD1
V
LVD2
V
LVD3
V
LVD4
V
LVD5
V
LVD6
V
LVD7
Vdd 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
2.86
2.96
3.07
3.92
4.39
4.55
4.63
4.72
2.92
3.02
3.13
4.00
4.48
4.64
4.73
4.81
2.98
[9]
3.08
3.20
4.08
4.57
4.74
[10]
4.82
4.91
V
V
V
V
V
V
V
V
V
V
PUMP0
V
PUMP1
V
PUMP2
V
PUMP3
V
PUMP4
V
PUMP5
V
PUMP6
V
PUMP7
Vdd Value for PUMP 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
2.96
3.03
3.18
4.11
4.55
4.63
4.72
4.90
3.02
3.10
3.25
4.19
4.64
4.73
4.82
5.00
3.08
3.16
3.32
4.28
4.74
4.82
4.91
5.10
V
V
V
V
V
V
V
V
V
Notes
9. Always greater than 50 mV above PPOR (PORLEV = 00) for falling supply.
10. Always greater than 50 mV above PPOR (PORLEV = 10) for falling supply.
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