Datasheet

NVT2008_NVT2010 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2014. All rights reserved.
Product data sheet Rev. 3 — 27 January 2014 10 of 33
NXP Semiconductors
NVT2008; NVT2010
Bidirectional voltage-level translator
Table 6, Table 7 and Table 8 contain suggested minimum values of pull-up resistors for
the PCA9306 and NVT20xx devices with typical voltage translation levels and drive
currents. The calculated values assume that both drive currents are the same.
V
OL
=V
IL
=0.1 V
CC
and accounts for a 5%V
CC
tolerance of the supplies, 1%
resistor values. It should be noted that the resistor chosen in the final application should
be equal to or larger than the values shown in Table 6
, Table 7 and Table 8 to ensure that
the pass voltage is less than 10 % of the V
CC
voltage, and the external driver should be
able to sink the total current from both pull-up resistors. When selecting the minimum
resistor value in Table 6
, Table 7 or Table 8, the drive current strength that should be
chosen should be the lowest drive current seen in the application and account for any
drive strength current scaling with output voltage. For the GTL devices, the resistance
table should be recalculated to account for the difference in ON resistance and bias
voltage limitations between V
CC(B)
and V
CC(A)
.
Table 6. Pull-up resistor minimum values, 3 mA driver sink current for PCA9306 and NVT20xx
A-side B-side
1.2 V 1.5 V 1.8 V 2.5 V 3.3 V 5.0 V
1.0 V R
pu(A)
= 750 
R
pu(B)
= 750 
R
pu(A)
=845
R
pu(B)
=845
R
pu(A)
= 976 
R
pu(B)
= 976 
R
pu(A)
= none
R
pu(B)
=887
R
pu(A)
= none
R
pu(B)
=1.18k
R
pu(A)
= none
R
pu(B)
=1.82k
1.2 V R
pu(A)
=931
R
pu(B)
=931
R
pu(A)
=1.02k
R
pu(B)
=1.02k
R
pu(A)
= none
R
pu(B)
=887
R
pu(A)
= none
R
pu(B)
=1.18k
R
pu(A)
= none
R
pu(B)
=1.82k
1.5 V R
pu(A)
=1.1k
R
pu(B)
=1.1k
R
pu(A)
= none
R
pu(B)
=866
R
pu(A)
= none
R
pu(B)
=1.18k
R
pu(A)
= none
R
pu(B)
=1.78k
1.8 V R
pu(A)
=1.47k
R
pu(B)
=1.47k
R
pu(A)
= none
R
pu(B)
=1.15k
R
pu(A)
= none
R
pu(B)
=1.78k
2.5 V R
pu(A)
=1.96k
R
pu(B)
=1.96k
R
pu(A)
= none
R
pu(B)
=1.78k
3.3 V R
pu(A)
= none
R
pu(B)
=1.74k
Table 7. Pull-up resistor minimum values, 10 mA driver sink current for PCA9306 and NVT20xx
A-side B-side
1.2 V 1.5 V 1.8 V 2.5 V 3.3 V 5.0 V
1.0 V R
pu(A)
= 221 
R
pu(B)
= 221 
R
pu(A)
=255
R
pu(B)
=255
R
pu(A)
= 287 
R
pu(B)
= 287 
R
pu(A)
= none
R
pu(B)
=267
R
pu(A)
= none
R
pu(B)
= 357 
R
pu(A)
= none
R
pu(B)
=549
1.2 V R
pu(A)
=274
R
pu(B)
=274
R
pu(A)
= 309 
R
pu(B)
= 309 
R
pu(A)
= none
R
pu(B)
=267
R
pu(A)
= none
R
pu(B)
= 357 
R
pu(A)
= none
R
pu(B)
=549
1.5 V R
pu(A)
= 332 
R
pu(B)
= 332 
R
pu(A)
= none
R
pu(B)
=261
R
pu(A)
= none
R
pu(B)
= 348 
R
pu(A)
= none
R
pu(B)
=536
1.8 V R
pu(A)
=442
R
pu(B)
=442
R
pu(A)
= none
R
pu(B)
= 348 
R
pu(A)
= none
R
pu(B)
=536
2.5 V R
pu(A)
= 590 
R
pu(B)
= 590 
R
pu(A)
= none
R
pu(B)
=523
3.3 V R
pu(A)
= none
R
pu(B)
=523