74AVC2T45
Dual-bit, dual-supply voltage level translator/transceiver;
3-state
Rev. 9 — 25 September 2018
Product data sheet
1. General description
The 74AVC2T45 is a dual-bit, dual-supply transceiver that enables bidirectional level translation.
It features two data input-output ports (nA and nB), 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 0.8 V
and 3.6 V making the device suitable for translating between any of the low voltage nodes
(0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V and 3.3 V). Pins nA and DIR are referenced to V
CC(A)
and pins nB
are referenced to V
CC(B)
. A HIGH on DIR allows transmission from nA to nB and a LOW on DIR
allows transmission from nB to nA.
The device is 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 and B are
in the high-impedance OFF-state.
2. Features and benefits
•
Wide supply voltage range:
•
V
CC(A)
: 0.8 V to 3.6 V
•
V
CC(B)
: 0.8 V to 3.6 V
High noise immunity
Complies with JEDEC standards:
•
JESD8-12 (0.8 V to 1.3 V)
•
JESD8-11 (0.9 V to 1.65 V)
•
JESD8-7 (1.2 V to 1.95 V)
•
JESD8-5 (1.8 V to 2.7 V)
•
JESD8-B (2.7 V to 3.6 V)
ESD protection:
•
HBM JESD22-A114F Class 3B exceeds 8000 V
•
MM JESD22-A115-A exceeds 200 V
•
CDM JESD22-C101C exceeds 1000 V
Maximum data rates:
•
500 Mbit/s (1.8 V to 3.3 V translation)
•
320 Mbit/s (<1.8 V to 3.3 V translation)
•
320 Mbit/s (translate to 2.5 V or 1.8 V)
•
280 Mbit/s (translate to 1.5 V)
•
240 Mbit/s (translate to 1.2 V)
Suspend mode
Latch-up performance exceeds 100 mA per JESD 78 Class II
Inputs accept voltages up to 3.6 V
Low noise overshoot and undershoot < 10 % of V
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
74AVC2T45
Dual-bit, dual-supply voltage level translator/transceiver; 3-state
3. Ordering information
Table 1. Ordering information
Type number
Package
Temperature range
74AVC2T45DP
74AVC2T45DC
74AVC2T45GT
74AVC2T45GF
74AVC2T45GN
74AVC2T45GS
-40 °C to +125 °C
-40 °C to +125 °C
-40 °C to +125 °C
-40 °C to +125 °C
-40 °C to +125 °C
-40 °C to +125 °C
Name
TSSOP8
VSSOP8
XSON8
XSON8
XSON8
XSON8
Description
Version
plastic thin shrink small outline package; 8 leads; SOT505-2
body width 3 mm; lead length 0.5 mm
plastic very thin shrink small outline package;
8 leads; body width 2.3 mm
plastic extremely thin small outline package;
no leads; 8 terminals; body 1 x 1.95 x 0.5 mm
extremely thin small outline package; no leads;
8 terminals; body 1.35 x 1 x 0.5 mm
extremely thin small outline package; no leads;
8 terminals; body 1.2 x 1.0 x 0.35 mm
extremely thin small outline package; no leads;
8 terminals; body 1.35 x 1.0 x 0.35 mm
SOT765-1
SOT833-1
SOT1089
SOT1116
SOT1203
4. Marking
Table 2. Marking
Type number
74AVC2T45DP
74AVC2T45DC
74AVC2T45GT
74AVC2T45GF
74AVC2T45GN
74AVC2T45GS
[1]
Marking code
[1]
B45
B45
B45
B5
B5
B5
The pin 1 indicator is located on the lower left corner of the device, below the marking code.
5. Functional diagram
DIR
1A
5
DIR
2
1A
7
3
1B
1B
2A
2A
6
V
CC(A)
V
CC(B)
001aag577
2B
V
CC(A)
V
CC(B)
001aag578
2B
Fig. 1.
Logic symbol
Fig. 2.
Logic diagram
74AVC2T45
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2018. All rights reserved
Product data sheet
Rev. 9 — 25 September 2018
2 / 23
Nexperia
74AVC2T45
Dual-bit, dual-supply voltage level translator/transceiver; 3-state
6. Pinning information
6.1. Pinning
74AVC2T45
V
CC(A)
1
8
V
CC(B)
1A
2
7
1B
74AVC2T45
V
CC(A)
1A
2A
GND
1
2
3
4
001aag579
2A
8
7
6
5
V
CC(B)
1B
2B
DIR
3
6
2B
GND
4
5
DIR
001aag580
Transparent top view
Fig. 3.
Pin configuration SOT505-2 and SOT765-1
Fig. 4.
Pin configuration SOT833-1, SOT1089,
SOT1116 and SOT1203
6.2. Pin description
Table 3. Pin description
Symbol
V
CC(A)
1A
2A
GND
DIR
2B
1B
V
CC(B)
Pin
1
2
3
4
5
6
7
8
Description
supply voltage A (referenced to pins 1A, 2A and DIR)
data input or output
data input or output
ground (0 V)
direction control
data input or output
data input or output
supply voltage B (referenced to pins 1B and 2B)
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)
0.8 V to 3.6 V
0.8 V to 3.6 V
GND
[3]
[1]
[2]
[3]
Input
DIR
[2]
L
H
X
Input/output
[1]
nA
nA = nB
input
Z
nB
input
nB = nA
Z
The input circuit of the data I/O is always active.
The DIR input circuit is referenced to V
CC(A)
.
If at least one of V
CC(A)
or V
CC(B)
is at GND level, the device goes into Suspend mode.
74AVC2T45
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2018. All rights reserved
Product data sheet
Rev. 9 — 25 September 2018
3 / 23
Nexperia
74AVC2T45
Dual-bit, dual-supply voltage level translator/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
+4.6
+4.6
-
+4.6
-
+4.6
±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]
V
I
< 0 V
[1]
-50
-0.5
-50
-0.5
-0.5
-
-
-100
-65
-
V
CCO
+ 0.5 V
The minimum input voltage rating 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 4.6 V.
For TSSOP8 package: above 55 °C the value of P
tot
derates linearly at 2.5 mW/K.
For VSSOP8 package: above 110 °C the value of P
tot
derates linearly with 8 mW/K.
For XSON8 packages: above 118 °C the value of P
tot
derates linearly with 7.8 mW/K.
9. Recommended operating conditions
Table 6. Recommended operating conditions
Symbol Parameter
V
CC(A)
V
CC(B)
V
I
V
O
T
amb
Δt/ΔV
[1]
[2]
Conditions
Min
0.8
0.8
0
Max
3.6
3.6
3.6
V
CCO
3.6
+125
5
Unit
V
V
V
V
V
°C
ns/V
supply voltage A
supply voltage B
input voltage
output voltage
ambient temperature
input transition rise and fall rate
V
CCI
= 0.8 V to 3.6 V
[2]
Active mode
Suspend or 3-state mode
[1]
0
0
-40
-
V
CCO
is the supply voltage associated with the output port.
V
CCI
is the supply voltage associated with the input port.
74AVC2T45
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2018. All rights reserved
Product data sheet
Rev. 9 — 25 September 2018
4 / 23
Nexperia
74AVC2T45
Dual-bit, dual-supply voltage level translator/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).
Symbol Parameter
V
OH
V
OL
I
I
I
OZ
I
OFF
HIGH-level output
voltage
LOW-level output
voltage
input leakage
current
OFF-state output
current
power-off leakage
current
Conditions
V
I
= V
IH
or V
IL
; I
O
= -1.5 mA;
V
CC(A)
= V
CC(B)
= 0.8 V
V
I
= V
IH
or V
IL
; I
O
= 1.5 mA;
V
CC(A)
= V
CC(B)
= 0.8 V
DIR input; V
I
= 0 V or 3.6 V;
V
CC(A)
= V
CC(B)
= 0.8 V to 3.6 V
A or B port; V
O
= 0 V or V
CCO
;
V
CC(A)
= V
CC(B)
= 0.8 V to 3.6 V
A port; V
I
or V
O
= 0 V to 3.6 V; V
CC(A)
= 0 V;
V
CC(B)
= 0.8 V to 3.6 V
B port; V
I
or V
O
= 0 V to 3.6 V; V
CC(B)
= 0 V;
V
CC(A)
= 0.8 V to 3.6 V
C
I
C
I/O
[1]
[2]
Min
-
-
-
[1][2]
-
-
-
-
[2]
-
Typ
0.69
0.07
±0.025
±0.5
±0.1
±0.1
1.0
4.0
Max
-
-
±0.25
±2.5
±1
±1
-
-
Unit
V
V
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
= V
CCO
or GND; V
CC(A)
= V
CC(B)
= 3.3 V
For I/O ports, the parameter I
OZ
includes the input leakage current.
V
CCO
is the supply voltage associated with the output port.
Table 8. Static characteristics
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter
V
IH
HIGH-level
input voltage
Conditions
data input
V
CCI
= 0.8 V
V
CCI
= 1.1 V to 1.95 V
V
CCI
= 2.3 V to 2.7 V
V
CCI
= 3.0 V to 3.6 V
DIR input
V
CC(A)
= 0.8 V
V
CC(A)
= 1.1 V to 1.95 V
V
CC(A)
= 2.3 V to 2.7 V
V
CC(A)
= 3.0 V to 3.6 V
V
IL
LOW-level
input voltage
data input
V
CCI
= 0.8 V
V
CCI
= 1.1 V to 1.95 V
V
CCI
= 2.3 V to 2.7 V
V
CCI
= 3.0 V to 3.6 V
DIR input
V
CC(A)
= 0.8 V
V
CC(A)
= 1.1 V to 1.95 V
V
CC(A)
= 2.3 V to 2.7 V
V
CC(A)
= 3.0 V to 3.6 V
-
-
-
-
0.30V
CC(A)
0.35V
CC(A)
0.7
0.9
-
-
-
-
0.30V
CC(A)
V
0.35V
CC(A)
V
0.7
0.9
V
V
[1]
-
-
-
-
0.30V
CCI
0.35V
CCI
0.7
0.9
-
-
-
-
0.30V
CCI
V
0.35V
CCI
V
0.7
0.9
V
V
0.70V
CC(A)
0.65V
CC(A)
1.6
2
-
-
-
-
0.70V
CC(A)
0.65V
CC(A)
1.6
2
-
-
-
-
V
V
V
V
[1]
0.70V
CCI
0.65V
CCI
1.6
2
-
-
-
-
0.70V
CCI
0.65V
CCI
1.6
2
-
-
-
-
V
V
V
V
-40 °C to +85 °C
Min
Max
-40 °C to +125 °C
Min
Max
Unit
74AVC2T45
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2018. All rights reserved
Product data sheet
Rev. 9 — 25 September 2018
5 / 23
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