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| FXL4245_10 Datasheet, PDF (8/11 Pages) Fairchild Semiconductor – Low-Voltage, Dual-Supply, 8-Bit, Signal Translator with Configurable Voltage Supplies, Signal Levels, and 3-State Outputs | |||
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AC Loadings and Waveforms
Test
tPLH,tPHL
tPLZ,tPZL
tPHZ,tPZH
Table 1. AC Load Table
VCC0
1.2V ± 0.1V
1.5V ± 0.1V
1.8V ± 0.15V
2.5V ± 0.2V
3.3V ± 0.3V
Figure 2. AC Test Circuit
Switch
Open
VCC0 ⢠2 at VCCO=3.3 ± 0.3V, 2.5V ± 0.2V,
1.8V ± 0.15V, 1.5V ± 0.1V, 1.2V ± 0.1V
GND
CL
15pF
15pF
30pF
30pF
30pF
RL
2kΩ
2kΩ
500kΩ
500kΩ
500kΩ
Rtr1
2kΩ
2kΩ
500kΩ
500kΩ
500kΩ
Note:
7. Input tR=tF=2.0ns, 10% to 90%
Figure 3. Waveform for Inverting and Non-
Inverting Functions
Note:
8. Input tR=tF=2.0ns, 10% to 90%
Figure 4. 3-State Output Low Enable and Disable for
Low Voltage Logic
Note:
9. Input tR=tF=2.0ns, 10% to 90%
Figure 5. 3-State Output High Enable and Disable for Low Voltage Logic
Symbol
3.3V ± 0.3V
2.5V ± 0.2V
VCC
1.8V ± 0.15V
VMI
VCCI/2
VCCI/2
VCCI/2
VMO
VCCO/2
VCCO/2
VCCO/2
VX
VOH - 0.3V
VOH â 0.15V
VOH â 0.15V
VY
VOL + 0.3V
VOL + 0.15V
VOL + 0.15V
Note:
10. For VMI VCCO=VCCA for control pins T/R and OE or VCCA/2.
© 2004 Fairchild Semiconductor Corporation
FXL4245 ⢠Rev. 1.0.3
8
1.5V ± 0.1V
VCCI/2
VCCO/2
VOH â 0.1V
VOL + 0.1V
1.2V ± 0.1V
VCCI/2
VCCO/2
VOH â 0.1V
VOL + 0.1V
www.fairchildsemi.com
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