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Cypress CY8C21434 Manual De Usuario

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CY8C21634, CY8C21534
CY8C21434, CY8C21334, CY8C21234
Document Number: 38-12025  Rev. *O
Page 24 of 45
DC Analog Mux Bus 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, or 2.7V at 25°C and are for design guidance only.
DC POR and LVD 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, or 2.7V at 25°C and are for design guidance only.
Table 22.  DC Analog Mux Bus Specifications
Symbol
Description
Min
Typ
Max
Units
Notes
R
SW
Switch Resistance to Common Analog Bus
–
–
400
800
W
W
Vdd 
≥  2.7V
2.4V 
≤ Vdd ≤  2.7V 
R
VDD
Resistance of Initialization Switch to Vdd
–
–
800
W
Table 23.  DC POR and LVD Specifications
Symbol
Description
Min
Typ
Max
Units
Notes
V
PPOR0
V
PPOR1
V
PPOR2
Vdd 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
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
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
2.40
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
[7]
2.99
[8]
3.09
3.20
4.55
4.75
4.83
4.95
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
2.45
2.96
3.03
3.18
4.54
4.62
4.71
4.89
2.55
3.02
3.10
3.25
4.64
4.73
4.82
5.00
2.62
[9]
3.09
3.16
3.32
4.74
4.83
4.92
5.12
V
V
V
V
V
V
V
V
Notes
7. Always greater than 50 mV above V
PPOR
 (PORLEV = 00) for falling supply.
8. Always greater than 50 mV above V
PPOR
 (PORLEV = 01) for falling supply.
9.
Always greater than 50 mV above 
V
LVD0
.
10.
Always greater than 50 mV above 
V
LVD3
.