fxl4td245 Fairchild Semiconductor, fxl4td245 Datasheet - Page 8

• Manufacturer Part Number: fxl4td245
• Description: Fxl4td245 Low Voltage Dual Supply 4-bit Signal Translator With Configurable Voltage Supplies And Signal Levels And 3-state Outputs And Independent Direction Controls
• Manufacturer: Fairchild Semiconductor

©2006 Fairchild Semiconductor Corporation
FXL4TD245 Rev. 1.0.4
AC Loading and Waveforms
Input t
Input t
For V
R
R
Symbol
= t
= t
Figure 2. Waveform for Inverting
DATA
DATA
OUT
V
F
F
mi
V
V
V
and Non-Inverting Functions
Figure 4. 3-STATE Output High Enable and Disable Times for Low Voltage Logic
IN
mo
= 2.0 ns, 10% to 90%
= 2.5ns, 10% to 90%, @ V
mi
X
Y
: V
CCI
= V
CCA
t
pxx
3.3V ± 0.3V
AC Load Table
V
V
V
SIGNAL
OH
OL
for Control Pins T/R and OE, or V
V
1.8V ± 0.15V
CCO
1.2V ± 0.1V
1.5V ± 0.1V
2.5V ± 0.2V
3.3V ± 0.3V
CCI
TEST
+ 0.3V
− 0.3V
V
/ 2
/ 2
CCO
t
t
t
Input t
Input t
PHZ
PLH
PLZ
I
= 3.0V to 3.6V only
Test
t
pxx
, t
, t
, t
V
R
R
V
DUT
PHL
PZL
PZH
mi
CONTROL
CC
= t
= t
V
OUTPUT
mo
F
F
2.5V ± 0.2V
V
V
= 2.0 ns, 10% to 90%
= 2.5ns, 10% to 90%, @ V
V
GND
V
DATA
OH
OL
OUT
V
V
CCI
CCO
CCO
Figure 1. AC Test Circuit
CCI
+ 0.15V
− 0.15V
V
CCO
15pF
15pF
15pF
15pF
15pF
C
/ 2
1.8V ± 0.15V, 1.5V ± 0.1V, 1.2V ± 0.1V
C
/ 2
L
t
L
PZH
x 2 at V
CCA
R
L
V
/ 2
8
mo
CCO
1.8V ± 0.15V
Rtr1
V
V
OH
OL
V
I
V
Switch
t
= 3.0V to 3.6V only
= 3.3 ± 0.3V, 2.5V ± 0.2V,
PHZ
OPEN
CCO
Input t
Input t
V
CCI
GND
+ 0.15V
− 0.15V
CC
and Disable Times for Low Voltage Logic
2kΩ
2kΩ
2kΩ
2kΩ
2kΩ
R
Figure 3. 3-STATE Output Low Enable
/ 2
/ 2
V
L
R
R
CONTROL
mi
= t
= t
OUTPUT
F
F
OPEN
GND
V
DATA
= 2.0 ns, 10% to 90%
= 2.5ns, 10% to 90%, @ V
OUT
CC
V
V
V
GND
OH
X
x 2
CCA
1.5V ± 0.1V
t
V
V
PZL
V
OH
V
OL
CCO
CCI
Rtr1
2kΩ
2kΩ
2kΩ
2kΩ
2kΩ
+ 0.1V
− 0.1V
t
t
t
PLH
PZH
PZL
/ 2
/ 2
V
, t
, t
, t
mo
PLZ
PHL
PHZ
t
PLZ
I
= 3.0V to 3.6V only
1.2V ± 0.1V
V
V
V
V
OH
V
OL
mi
CCO
CCI
+ 0.1V
− 0.1V
/ 2
www.fairchildsemi.com
/ 2
V
V
V
GND
Y
OL
CCA