74LVC1T45; 74LVCH1T45
Dual supply translating transceiver; 3-state
Rev. 8 — 10 June 2021
Product data sheet
1. General description
The 74LVC1T45; 74LVCH1T45 are single bit, dual supply transceivers with 3-state outputs
that enable bidirectional level translation. They feature two 1-bit input-output ports (A and B), a
direction control input (DIR) and dual supply pins (V
CC(A)
and V
CC(B)
). Both V
CC(A)
and V
CC(B)
can
be supplied at any voltage between 1.2 V and 5.5 V making the device suitable for translating
between any of the low voltage nodes (1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V and 5.0 V). Pins A and DIR
are referenced to V
CC(A)
and pin B is referenced to V
CC(B)
. A HIGH on DIR allows transmission
from A to B and a LOW on DIR allows transmission from B to A.
The devices are fully specified for partial power-down applications using I
OFF
. The I
OFF
circuitry disables the output, preventing any damaging backflow current through the device
when it is powered down. In suspend mode when either V
CC(A)
or V
CC(B)
are at GND level,
both A port and B port are in the high-impedance OFF-state.
Active bus hold circuitry in the 74LVCH1T45 holds unused or floating data inputs at a valid logic
level.
2. Features and benefits
•
Wide supply voltage range:
•
V
CC(A)
: 1.2 V to 5.5 V
•
V
CC(B)
: 1.2 V to 5.5 V
High noise immunity
Complies with JEDEC standards:
•
JESD8-7 (1.2 V to 1.95 V)
•
JESD8-5 (1.8 V to 2.7 V)
•
JESD8C (2.7 V to 3.6 V)
•
JESD36 (4.5 V to 5.5 V)
ESD protection:
•
HBM JESD22-A114F Class 3A exceeds 4000 V
•
CDM JESD22-C101E exceeds 1000 V
Maximum data rates:
•
420 Mbps (3.3 V to 5.0 V translation)
•
210 Mbps (translate to 3.3 V))
•
140 Mbps (translate to 2.5 V)
•
75 Mbps (translate to 1.8 V)
•
60 Mbps (translate to 1.5 V)
Suspend mode
Latch-up performance exceeds 100 mA per JESD 78 Class II
±24 mA output drive (V
CC
= 3.0 V)
Inputs accept voltages up to 5.5 V
Low power consumption: 16 μA maximum I
CC
I
OFF
circuitry provides partial Power-down mode operation
Multiple package options
Specified from -40 °C to +85 °C and -40 °C to +125 °C
•
•
•
•
•
•
•
•
•
•
•
•
Nexperia
74LVC1T45; 74LVCH1T45
Dual supply translating transceiver; 3-state
3. Ordering information
Table 1. Ordering information
Type number
Package
Temperature range
74LVC1T45GW
74LVCH1T45GW
74LVC1T45GM
74LVCH1T45GM
74LVC1T45GN
74LVCH1T45GN
74LVC1T45GS
74LVCH1T45GS
-40 °C to +125 °C
XSON6
-40 °C to +125 °C
XSON6
-40 °C to +125 °C
XSON6
plastic extremely thin small outline package;
no leads; 6 terminals; body 1 × 1.45 × 0.5 mm
extremely thin small outline package; no leads;
6 terminals; body 0.9 × 1.0 × 0.35 mm
extremely thin small outline package; no leads;
6 terminals; body 1.0 × 1.0 × 0.35 mm
SOT886
SOT1115
SOT1202
-40 °C to +125 °C
Name
SC-88
Description
plastic surface-mounted package; 6 leads
Version
SOT363
4. Marking
Table 2. Marking
Type number
74LVC1T45GW
74LVCH1T45GW
74LVC1T45GM
74LVCH1T45GM
74LVC1T45GN
74LVCH1T45GN
74LVC1T45GS
74LVCH1T45GS
[1]
Marking code
[1]
V5
X5
V5
X5
V5
X5
V5
X5
The pin 1 indicator is located on the lower left corner of the device, below the marking code.
5. Functional diagram
DIR
5
DIR
A
3
A
4
V
CC(A)
V
CC(B)
B
V
CC(A)
V
CC(B)
B
001aag886
001aag885
Fig. 1.
Logic symbol
Fig. 2.
Logic diagram
74LVC_LVCH1T45
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2021. All rights reserved
Product data sheet
Rev. 8 — 10 June 2021
2 / 30
Nexperia
74LVC1T45; 74LVCH1T45
Dual supply translating transceiver; 3-state
6. Pinning information
6.1. Pinning
74LVC1T45
74LVCH1T45
V
CC(A)
6
5
4
001aaj991
74LVC1T45
74LVCH1T45
V
CC(A)
GND
A
1
2
3
V
CC(B)
DIR
1
6
V
CC(B)
DIR
V
CC(A)
GND
74LVC1T45
74LVCH1T45
1
2
3
6
5
4
V
CC(B)
DIR
B
GND
2
5
A
B
3
4
B
A
001aaj992
001aaj993
Transparent top view
Transparent top view
Fig. 3.
Pin configuration SOT363
(SC-88)
Fig. 4.
Pin configuration SOT886
(XSON6)
Fig. 5.
Pin configuration SOT1115
and SOT1202 (XSON6)
6.2. Pin description
Table 3. Pin description
Symbol
V
CC(A)
GND
A
B
DIR
V
CC(B)
Pin
1
2
3
4
5
6
Description
supply voltage port A and DIR
ground (0 V)
data input or output
data input or output
direction control
supply voltage port B
7. Functional description
Table 4. Function table
H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state.
Supply voltage
V
CC(A)
, V
CC(B)
1.2 V to 5.5 V
1.2 V to 5.5 V
GND
[2]
[1]
[2]
Input
DIR
L
H
X
Input/output
[1]
A
A=B
input
Z
B
input
B=A
Z
The input circuit of the data I/O is always active.
When either V
CC(A)
or V
CC(B)
is at GND level, the device goes into suspend mode.
74LVC_LVCH1T45
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2021. All rights reserved
Product data sheet
Rev. 8 — 10 June 2021
3 / 30
Nexperia
74LVC1T45; 74LVCH1T45
Dual supply translating transceiver; 3-state
8. Limiting values
Table 5. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
Symbol Parameter
V
CC(A)
V
CC(B)
I
IK
V
I
I
OK
V
O
I
O
I
CC
I
GND
T
stg
P
tot
[1]
[2]
[3]
[4]
Conditions
Min
-0.5
-0.5
Max
+6.5
+6.5
-
+6.5
-
+6.5
±50
100
-
+150
250
Unit
V
V
mA
V
mA
V
mA
mA
mA
°C
mW
supply voltage A
supply voltage B
input clamping current
input voltage
output clamping current
output voltage
output current
supply current
ground current
storage temperature
total power dissipation
T
amb
= -40 °C to +125 °C
[4]
V
O
< 0 V
Active mode
Suspend or 3-state mode
V
O
= 0 V to V
CCO
I
CC(A)
or I
CC(B)
[1] [2] [3]
[1]
[2]
V
I
< 0 V
[1]
-50
-0.5
-50
-0.5
-0.5
-
-
-100
-65
-
V
CCO
+ 0.5 V
The minimum input voltage ratings and output voltage ratings may be exceeded if the input and output current ratings are observed.
V
CCO
is the supply voltage associated with the output port.
V
CCO
+ 0.5 V should not exceed 6.5 V.
For SOT363 (SC-88) package: P
tot
derates linearly with 3.7 mW/K above 83 °C.
For SOT886 (XSON6) package: P
tot
derates linearly with 3.3 mW/K above 74 °C.
For SOT1115 (XSON6) package: P
tot
derates linearly with 3.2 mW/K above 71 °C.
For SOT1202 (XSON6) package: P
tot
derates linearly with 3.3 mW/K above 74 °C.
9. Recommended operating conditions
Table 6. Recommended operating conditions
Symbol Parameter
Conditions
V
CC(A)
V
CC(B)
V
I
V
O
T
amb
Δt/ΔV
supply voltage A
supply voltage B
input voltage
output voltage
ambient temperature
input transition rise and fall rate
V
CCI
= 1.2 V
V
CCI
= 1.4 V to 1.95 V
V
CCI
= 2.3 V to 2.7 V
V
CCI
= 3 V to 3.6 V
V
CCI
= 4.5 V to 5.5 V
[1]
[2]
V
CCO
is the supply voltage associated with the output port.
V
CCI
is the supply voltage associated with the input port.
Min
1.2
1.2
0
Max
5.5
5.5
5.5
V
CCO
5.5
+125
20
20
20
10
5
Unit
V
V
V
V
V
°C
ns/V
ns/V
ns/V
ns/V
ns/V
Active mode
Suspend or 3-state mode
[1]
0
0
-40
[2]
-
-
-
-
-
74LVC_LVCH1T45
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2021. All rights reserved
Product data sheet
Rev. 8 — 10 June 2021
4 / 30
Nexperia
74LVC1T45; 74LVCH1T45
Dual supply translating transceiver; 3-state
10. Static characteristics
Table 7. Typical static characteristics at T
amb
= 25 °C
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
[1] [2]
Symbol Parameter
V
OH
V
OL
I
I
I
BHL
I
BHH
I
BHLO
I
BHHO
I
OZ
I
OFF
HIGH-level output voltage
LOW-level output voltage
input leakage current
bus hold LOW current
bus hold HIGH current
bus hold LOW overdrive
current
bus hold HIGH overdrive
current
OFF-state output current
power-off leakage current
Conditions
V
I
= V
IH
or V
IL
; I
O
= -3 mA; V
CCO
= 1.2 V
V
I
= V
IH
or V
IL
; I
O
= 3 mA; V
CCO
= 1.2 V
DIR input; V
I
= 0 V to 5.5 V;
V
CCI
= 1.2 V to 5.5 V
A or B port; V
I
= 0.42 V; V
CCI
= 1.2 V
A or B port; V
I
= 0.78 V; V
CCI
= 1.2 V
A or B port; V
CCI
= 1.2 V
A or B port; V
CCI
= 1.2 V
A or B port; V
O
= 0 V or V
CCO
;
V
CCO
= 1.2 V to 5.5 V
A port; V
I
or V
O
= 0 V to 5.5 V; V
CC(A)
= 0 V;
V
CC(B)
= 1.2 V to 5.5 V
B port; V
I
or V
O
= 0 V to 5.5 V; V
CC(B)
= 0 V;
V
CC(A)
= 1.2 V to 5.5 V
C
I
C
I/O
[1]
[2]
[3]
Min
-
-
-
-
-
[3]
[3]
-
-
-
-
-
-
-
Typ
1.09
0.07
-
19
-19
19
-19
-
-
-
2.2
6.0
Max
-
-
±1
-
-
-
-
±1
±1
±1
-
-
Unit
V
V
μA
μA
μA
μA
μA
μA
μA
μA
pF
pF
input capacitance
input/output capacitance
DIR input; V
I
= 0 V or 3.3 V;
V
CC(A)
= V
CC(B)
= 3.3 V
A and B port; suspend mode;
V
O
= 3.3 V or 0 V; V
CC(A)
= V
CC(B)
= 3.3 V
V
CCI
is the supply voltage associated with the data input port.
V
CCO
is the supply voltage associated with the output port.
To guarantee the node switches, an external driver must source/sink at least I
BHLO
/I
BHHO
when the input is in the range V
IL
to V
IH
.
Table 8. Static characteristics
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
[1] [2]
Symbol Parameter
V
IH
HIGH-level
input voltage
Conditions
data input
V
CCI
= 1.2 V
V
CCI
= 1.4 V to 1.95 V
V
CCI
= 2.3 V to 2.7 V
V
CCI
= 3.0 V to 3.6 V
V
CCI
= 4.5 V to 5.5 V
DIR input
V
CCI
= 1.2 V
V
CCI
= 1.4 V to 1.95 V
V
CCI
= 2.3 V to 2.7 V
V
CCI
= 3.0 V to 3.6 V
V
CCI
= 4.5 V to 5.5 V
0.8V
CC(A)
0.65V
CC(A)
1.7
2.0
0.7V
CC(A)
-
-
-
-
-
0.8V
CC(A)
0.65V
CC(A)
1.7
2.0
0.7V
CC(A)
-
-
-
-
-
V
V
V
V
V
0.8V
CCI
0.65V
CCI
1.7
2.0
0.7V
CCI
-
-
-
-
-
0.8V
CCI
0.65V
CCI
1.7
2.0
0.7V
CCI
-
-
-
-
-
V
V
V
V
V
-40 °C to +85 °C
Min
Max
-40 °C to +125 °C
Min
Max
Unit
74LVC_LVCH1T45
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2021. All rights reserved
Product data sheet
Rev. 8 — 10 June 2021
5 / 30
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