GTL2003 查看數據表（PDF） - NXP Semiconductors.
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GTL2003 Datasheet PDF : 24 Pages
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NXP Semiconductors
GTL2003
8-bit bidirectional low voltage translator
7. Functional description
Refer also to Figure 1 “Functional diagram”.
7.1 Function selection
Table 4. Function selection, HIGH-to-LOW translation
Assumes Dn is at the higher voltage level.
H = HIGH voltage level; L = LOW voltage level; X = Don’t care
GREF[1]
DREF
SREF
Input Dn
H
H
0V
X
H
H
VT[2]
H
H
H
VT[2]
L
L
L
0 V VT[2]
X
Output Sn
X
VT[2][3]
L[4]
X
[1] GREF should be at least 1.5 V higher than SREF for best translator operation.
[2] VT is equal to the SREF voltage.
[3] Sn is not pulled up or pulled down.
[4] Sn follows the Dn input LOW.
Transistor
off
on
on
off
Table 5. Function selection, LOW-to-HIGH translation
Assumes Dn is at the higher voltage level.
H = HIGH voltage level; L = LOW voltage level; X = Don’t care
GREF[1]
DREF
SREF
Input Sn
H
H
0V
X
H
H
VT[2]
VT[2]
H
H
VT[2]
L
L
L
0 V VT[2]
X
Output Dn
X
H[3]
L[4]
X
[1] GREF should be at least 1.5 V higher than SREF for best translator operation.
[2] VT is equal to the SREF voltage.
[3] Dn is pulled up to VDD1 through an external resistor.
[4] Dn follows the Sn input LOW.
Transistor
off
nearly off
on
off
GTL2003
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 3 July 2012
© NXP B.V. 2012. All rights reserved.
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