GTL2002D PHILIPS [NXP Semiconductors], GTL2002D Datasheet - Page 5

• Manufacturer Part Number: GTL2002D
• Description: 2-bit bi-directional low voltage translator
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
Uni-directional down translation
For uni-directional clamping, higher voltage to lower voltage, the G
V
open drain. The opposite side of the reference transistor (S
through a 200 k resistor to a 3.3 V to 5.5 V V
output voltage equal to S
Uni-directional up translation
For uni-directional up translation, lower voltage to higher voltage, the reference transistor is connected the same as for a down translation.
A pull-up resistor is required on the higher voltage side (Dn or Sn) to get the full HIGH level, since the GTL–TVC device will only pass the
reference source (S
open drain.
2004 Sep 29
CC
2-bit bi-directional low voltage translator
LOWER VOLTAGE AS PRO-
through a pull-up resistor (typically 200 k ). A filter capacitor on D
EASY MIGRATION TO
CESSOR GEOMETRY
LOWER VOLTAGE AS PRO-
EASY MIGRATION TO
CESSOR GEOMETRY
SHRINKS.
SHRINKS.
REF
) voltage as a HIGH when doing an up translation. The driver on the lower voltage side only needs pull-up resistors if it is
1.8 V
1.5 V
1.2 V
1.0 V
1.8 V
1.5 V
1.2 V
1.0 V
REF
TOTEM POLE I/O
OR OPEN DRAIN
.
Figure 5. Uni-directional down translation, to protect low voltage processor pins
V
CORE
CPU I/O
Figure 6. Uni-directional up translation, to higher voltage chip sets
V
CORE
CPU I/O
TYPICAL UNI-DIRECTIONAL – HIGH TO LOW VOLTAGE TRANSLATION
TYPICAL UNI-DIRECTIONAL – LOW TO HIGH VOLTAGE TRANSLATION
CC
supply and S
REF
) is connected to the processor core supply voltage. When D
REF
REF
is set between 1.0 V to V
input must be connected to D
REF
5
is recommended. Pull-up resistors are required if the chipset I/O are
S
S
GND
GND
GTL2002
S1
S2
GTL2002
S1
S2
REF
REF
G
D
G
D
REF
REF
D1
D2
REF
REF
D1
D2
CC
– 1.5 V, the output of each Sn has a maximum
200 k
200 k
REF
and both pins pulled to the higher side
TOTEM POLE I/O
CHIPSET I/O
V
CC
CHIPSET I/O
REF
GTL2002
Product data sheet
V
SA00643
is connected
CC
SA00644
5 V
5 V