Cypress CY8C23433 Manual De Usuario

Document Number: 001-44369 Rev. *B

Page 21 of 37

The following table 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, 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. 

The guaranteed specifications are measured through the Analog Continuous Time PSoC blocks. The power levels for AGND refer to
the power of the Analog Continuous Time PSoC block. The power levels for RefHi and RefLo refer to the Analog Reference Control
register. The limits stated for AGND include the offset error of the AGND buffer local to the Analog Continuous Time PSoC block.
Reference control power is high. 

BG

Bandgap Voltage Reference

1.28

1.30

1.33

V

–

AGND = Vdd/2

Vdd/2 - 0.04

Vdd/2 - 0.01

Vdd/2 + 0.007

V

–

AGND = 2 x BandGap

2 x BG - 0.048

2 x BG - 0.030

2 x BG + 0.024

V

–

AGND = P2[4] (P2[4] = Vdd/2)

P2[4] - 0.011

P2[4]

P2[4] + 0.011

V

–

AGND = BandGap

BG - 0.009

BG + 0.008

BG + 0.016

V

–

AGND = 1.6 x BandGap

1.6 x BG - 0.022

1.6 x BG - 0.010

1.6 x BG + 0.018

V

–

AGND Block to Block Variation 
(AGND = Vdd/2)

-0.034

0.000

0.034

V

–

RefHi = Vdd/2 + BandGap

Vdd/2 + BG - 0.10

Vdd/2 + BG

Vdd/2 + BG + 0.10

V

–

RefHi = 3 x BandGap

3 x BG - 0.06

3 x BG

3 x BG + 0.06

V

–

RefHi = 2 x BandGap + P2[6] 
(P2[6] = 1.3V)

2 x BG + P2[6] - 0.113 2 x BG + P2[6] - 0.018 2 x BG + P2[6] + 0.077

V

–

RefHi = P2[4] + BandGap (P2[4] = Vdd/2)

P2[4] + BG - 0.130

P2[4] + BG - 0.016

P2[4] + BG + 0.098

V

–

RefHi = P2[4] + P2[6] (P2[4] = Vdd/2, 
P2[6] = 1.3V)

P2[4] + P2[6] - 0.133

P2[4] + P2[6] - 0.016

P2[4] + P2[6]+ 0.100

V

–

RefHi = 3.2 x BandGap

3.2 x BG - 0.112

3.2 x BG

3.2 x BG + 0.076

V

–

RefLo = Vdd/2 – BandGap

Vdd/2 - BG - 0.04

Vdd/2 - BG + 0.024

Vdd/2 - BG + 0.04

V

–

RefLo = BandGap

BG - 0.06

BG

BG + 0.06

V

–

RefLo = 2 x BandGap - P2[6] 
(P2[6] = 1.3V)

2 x BG - P2[6] - 0.084 2 x BG - P2[6] + 0.025 2 x BG - P2[6] + 0.134

V

–

RefLo = P2[4] – BandGap 
(P2[4] = Vdd/2)

P2[4] - BG - 0.056

P2[4] - BG + 0.026

P2[4] - BG + 0.107

V

–

RefLo = P2[4]-P2[6] (P2[4] = Vdd/2, 
P2[6] = 1.3V)

P2[4] - P2[6] - 0.057

P2[4] - P2[6] + 0.026

P2[4] - P2[6] + 0.110

V

BG

Bandgap Voltage Reference

1.28

1.30

1.33

V

–

AGND = Vdd/2

Vdd/2 - 0.03

Vdd/2 - 0.01

Vdd/2 + 0.005

V

–

AGND = 2 x BandGap

Not Allowed

–

AGND = P2[4] (P2[4] = Vdd/2)

P2[4] - 0.008

P2[4] + 0.001

P2[4] + 0.009

V

–

AGND = BandGap

BG - 0.009

BG + 0.005

BG + 0.015

V

–

AGND = 1.6 x BandGap

1.6 x BG - 0.027

1.6 x BG - 0.010

1.6 x BG + 0.018

V

–

AGND Column to Column Variation 
(AGND = Vdd/2)

-0.034

0.000

0.034

mV

–

RefHi = Vdd/2 + BandGap

Not Allowed

–

RefHi = 3 x BandGap

Not Allowed