FXLA108_12 Datasheet, PDF (15/17 Pages) Fairchild Semiconductor – Low-Voltage Dual-Supply 8-Bit Voltage Translator with Configurable Voltage Supplies and Signal Levels, 3-State Outputs, and Auto Direction Sensing

V_OUT
t_rise
V_OH
80% x V_CCO
20% x V_CCO
V_OL
Time
I_OHD
≈
(C_L
+ C_{I /O} ) ×
ΔV_OUT
Δt
=
(C_L
+
C_I
/O ^{) ×}
(20%
− 80%)
t_RISE
• V_CCO
Figure 7. Active Output Rise Time and Dynamic Output Current High
V_OH
t_fall
V_OUT
80% x V_CCO
20% x V_CCO
V_OL
Time
I_OLD
≈
(C_L
+
C_I
/O
)×
ΔV_OUT
Δt
=
(C_L
+ C_I
/O
)×
(80%
−
20%) •V_CCO
t_FALL
Figure 8. Active Output Fall Time and Dynamic Output Current Low
t_W
DATA
IN
V_CCI/2
V_CCI/2
Maximum Data Rate, f = 1/t_W
Figure 9. Maximum Data Rate
V_CCI
GND
DATA
OUTPUT
V_mo
t_skew
V_mo
V_CCO
GND
t_skew
DATA
OUTPUT
V_mo
V_CCO
V_mo
GND
Figure 10. Output Skew Time
Note:
22. t_SKEW = (t_pHLmax – t_pHLmin) or (t_pLHmax – t_pLHmin)
© 2009 Fairchild Semiconductor Corporation
FXLA108 • Rev. 1.0.5
15
www.fairchildsemi.com