Product Specifications

CY8C29466/CY8C29566
CY8C29666/CY8C29866
Document Number: 38-12013 Rev. AB Page 35 of 67
DC Analog External Reference Specifications
The following table lists guaranteed maximum and minimum specifications for the voltage and temperature ranges: 4.75 V to 5.25 V
and –40 °C  T
A
 85 °C, or 3.0 V to 3.6 V and –40 °C  T
A
 85 °C, respectively. Typical parameters apply to 5 V and 3.3 V at 25 °C
and are for design guidance only.
DC Analog PSoC Block Specifications
The following table lists guaranteed maximum and minimum specifications for the voltage and temperature ranges: 4.75 V to 5.25 V
and –40 °C  T
A
 85 °C, or 3.0 V to 3.6 V and –40 °C  T
A
 85 °C, respectively. Typical parameters apply to 5 V and 3.3 V at 25 °C
and are for design guidance only.
0b110
RefPower = High
Opamp bias = High
V
REFHI
Ref High
2 × BandGap 2.507 2.598 2.698 V
V
AGND
AGND
BandGap 1.203 1.307 1.424 V
V
REFLO
Ref Low
Vss Vss Vss + 0.012 Vss + 0.067 V
RefPower = High
Opamp bias = Low
V
REFHI
Ref High
2 × BandGap 2.516 2.598 2.683 V
V
AGND
AGND
BandGap 1.241 1.303 1.376 V
V
REFLO
Ref Low
Vss Vss Vss + 0.007 Vss + 0.040 V
RefPower = Med
Opamp bias = High
V
REFHI
Ref High
2 × BandGap 2.510 2.599 2.693 V
V
AGND
AGND
BandGap 1.240 1.305 1.374 V
V
REFLO
Ref Low
Vss Vss Vss + 0.008 Vss + 0.048 V
RefPower = Med
Opamp bias = Low
V
REFHI
Ref High
2 × BandGap 2.515 2.598 2.683 V
V
AGND
AGND
BandGap 1.258 1.302 1.355 V
V
REFLO
Ref Low
Vss Vss Vss + 0.005 Vss + 0.03 V
0b111
All power settings.
Not allowed for 3.3 V.
– – – – – – –
Table 22. 3.3-V DC Analog Reference Specifications (continued)
Reference
ARF_CR[5:3]
Reference Power
Settings
Symbol Reference Description Min Typ Max Unit
Table 23. 5-V DC Analog External Reference Specifications
Reference Description Min Typ Max Unit
Ref Low Ref Low = P2[4] – P2[6] (P2[4] = V
CC
/2, P2[6] = 1.3 V) 1.12 1.221 1.28 V
AGND AGND = P2[4] (P2[4] = V
CC
/2) 2.487 2.499 2.513 V
Ref High Ref Low = P2[4] + P2[6] (P2[4] = V
CC
/2, P2[6] = 1.3 V) 3.67 3.759 3.93 V
Table 24. 3.3-V DC Analog External Reference Specifications
Reference Description Min Typ Max Unit
Ref Low Ref Low = P2[4] – P2[6] (P2[4] = V
CC
/2, P2[6] = 1.3 V) 0.29 0.371 0.41 V
AGND AGND = P2[4] (P2[4] = V
CC
/2) 1.642 1.649 1.658 V
Ref High Ref Low = P2[4] + P2[6] (P2[4] = V
CC
/2, P2[6] = 1.3 V) – 2.916 – V
Table 25. DC Analog PSoC Block Specifications
Symbol Description Min Typ Max Unit Notes
R
CT
Resistor unit value (continuous time) – 12.2 – k
C
SC
Capacitor unit value (switch cap) – 80 – fF