74LVT162245B
Rev. 3 — 1 October 2018
3.3 V 16-bit transceiver with 30 Ω termination resistors;
3-state
Product data sheet
1. General description
The 74LVT162245B is a high-performance BiCMOS product designed for V
CC
operation at 3.3 V.
This device is a 16-bit transceiver featuring non-inverting 3-state bus compatible outputs in both
send and receive directions. The control function implementation minimizes external timing
requirements. The device features an output enable input (nOE) for easy cascading and a direction
input (nDIR) for direction control.
The 74LVT162245B is designed with 30 Ω series resistance in both the HIGH-state and LOW-state
of the output. This design reduces line noise in applications such as memory address drivers, clock
drivers and bus transceivers and transmitters.
2. Features and benefits
•
•
•
•
•
•
•
•
•
•
•
•
16-bit bidirectional bus interface
3-state buffers
Output capability: +12 mA/–12 mA
TTL input and output switching levels
Input and output interface capability to systems at 5 V supply
Bus-hold data inputs eliminate the need for external pull-up resistors to hold unused inputs
Live insertion/extraction permitted
Outputs include series resistance of 30 Ω making external termination resistors unnecessary
Power-up 3-state
No bus current loading when output is tied to 5 V bus
Latch-up protection:
•
JESD78B Class II exceeds 500 mA
ESD protection:
•
HBM: JESD22-A114F exceeds 2000 V
•
MM: JESD22-A115-A exceeds 200 V
3. Ordering information
Table 1. Ordering information
Type number
Package
Temperature range Name
74LVT162245BDL
-40 °C to +85 °C
SSOP48
TSSOP48
Description
plastic shrink small outline package; 48 leads;
body width 7.5 mm
plastic thin shrink small outline package;
48 leads; body width 6.1 mm
Version
SOT370-1
SOT362-1
74LVT162245BDGG -40 °C to +85 °C
Nexperia
74LVT162245B
3.3 V 16-bit transceiver with 30 Ω termination resistors; 3-state
4. Functional diagram
1DIR
1
48
1A0
47
2
1A1
46
3
1A2
44
5
1A3
43
6
1A4
41
8
1A5
40
9
1A6
38
11
1A7
37
12
1B7
1B6
2A7
26
23
2B7
1B5
2A6
27
22
2B6
1B4
2A5
29
20
2B5
1B3
2A4
30
19
2B4
1B2
2A3
32
17
2B3
1B1
2A2
33
16
2B2
1B0
2A1
35
14
2B1
1OE
2A0
36
13
2B0
2DIR
24
25
2OE
mna708
Fig. 1.
Logic symbol
1OE
1DIR
48
1
G3
3EN1 [BA]
3EN2 [AB]
G6
6EN4 [BA]
6EN5 [AB]
1
2
2
3
5
6
8
9
11
12
4
5
13
14
16
17
19
20
22
23
1B0
1B1
1B2
1B3
1B4
1B5
1B6
1B7
2B0
2B1
2B2
2B3
2B4
2B5
2B6
2B7
001aac372
25
2OE
24
2DIR
1A0
1A1
1A2
1A3
1A4
1A5
1A6
1A7
2A0
2A1
2A2
2A3
2A4
2A5
2A6
2A7
47
46
44
43
41
40
38
37
36
35
33
32
30
29
27
26
V
CC
V
CC
27 Ω
output
27 Ω
mna709
Fig. 2.
IEC logic symbol
Fig. 3.
Schematic of each output
74LVT162245B
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2018. All rights reserved
Product data sheet
Rev. 3 — 1 October 2018
2 / 12
Nexperia
74LVT162245B
3.3 V 16-bit transceiver with 30 Ω termination resistors; 3-state
5. Pinning information
5.1. Pinning
74LVT162245B
1DIR
1B0
1B1
GND
1B2
1B3
V
CC
1B4
1B5
1
2
3
4
5
6
7
8
9
48 1OE
47 1A0
46 1A1
45 GND
44 1A2
43 1A3
42 V
CC
41 1A4
40 1A5
39 GND
38 1A6
37 1A7
36 2A0
35 2A1
34 GND
33 2A2
32 2A3
31 V
CC
30 2A4
29 2A5
28 GND
27 2A6
26 2A7
25 2OE
aaa-029123
GND 10
1B6 11
1B7 12
2B0 13
2B1 14
GND 15
2B2 16
2B3 17
V
CC
18
2B4 19
2B5 20
GND 21
2B6 22
2B7 23
2DIR 24
Fig. 4.
Pin configuration SOT370-1 (SSOP48) and SOT362-1 (TSSOP48)
5.2. Pin description
Table 2. Pin description
Symbol
1DIR, 2DIR
1A0, 1A1, 1A2, 1A3, 1A4, 1A5, 1A6, 1A7
2A0, 2A1, 2A2, 2A3, 2A4, 2A5, 2A6, 2A7
GND
1B0, 1B1, 1B2, 1B3, 1B4, 1B5, 1B6, 1B7
2B0, 2B1, 2B2, 2B3, 2B4, 2B5, 2B6, 2B7
1OE, 2OE
V
CC
Pin
1, 24
47, 46, 44, 43, 41, 40, 38, 37
36, 35, 33, 32, 30, 29, 27, 26
4, 10, 15, 21, 28, 34, 39, 45
2, 3, 5, 6, 8, 9, 11, 12
13, 14, 16, 17, 19, 20, 22, 23
48, 25
7, 18, 31, 42
Description
direction control input
data input/output
data input/output
ground (0 V)
data input/output
data input/output
output enable input
supply voltage
74LVT162245B
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2018. All rights reserved
Product data sheet
Rev. 3 — 1 October 2018
3 / 12
Nexperia
74LVT162245B
3.3 V 16-bit transceiver with 30 Ω termination resistors; 3-state
6. Functional description
Table 3. Function table
H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state.
Control
nOE
L
L
H
nDIR
L
H
X
Input/output
nAn
output nAn = nBn
input
Z
nBn
input
output nBn = nAn
Z
7. Limiting values
Table 4. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
Symbol
V
CC
V
I
V
O
I
IK
I
OK
I
O
T
stg
T
j
[1]
[2]
Parameter
supply voltage
input voltage
output voltage
input clamping current
output clamping current
output current
storage temperature
junction temperature
Conditions
[1]
output in OFF-state or HIGH-state
V
I
< 0 V
V
O
< 0 V
output in LOW-state
output in HIGH-state
[2]
[1]
Min
-0.5
-0.5
-0.5
-50
-50
-
-64
-65
-
Max
+4.6
+7.0
+7.0
-
-
128
-
+150
150
Unit
V
V
V
mA
mA
mA
mA
°C
°C
The input and output negative voltage ratings may be exceeded if the input and output clamp current ratings are observed.
The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction
temperatures which are detrimental to reliability.
8. Recommended operating conditions
Table 5. Operating conditions
Symbol Parameter
V
CC
V
I
T
amb
Δt/ΔV
supply voltage
input voltage
ambient temperature
input transition rise and fall rate
in free air
outputs enabled
Conditions
Min
2.7
0
-40
-
Typ
-
-
-
-
Max
3.6
5.5
+85
10
Unit
V
V
°C
ns/V
9. Static characteristics
Table 6. Static characteristics
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol
V
IK
V
IH
V
IL
Parameter
input clamping voltage
HIGH-level input voltage
LOW-level input voltage
Conditions
V
CC
= 2.7 V; I
IK
= -18 mA
Min
-
2.0
-
Typ[1]
0.8
-
-
Max
-1.2
-
0.8
Unit
V
V
V
74LVT162245B
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2018. All rights reserved
Product data sheet
Rev. 3 — 1 October 2018
4 / 12
Nexperia
74LVT162245B
3.3 V 16-bit transceiver with 30 Ω termination resistors; 3-state
Conditions
V
CC
= 3.0 V; I
OH
= -12 mA
V
CC
= 3.0 V; I
OL
= 12 mA
Min
2.0
-
-
-
control pins
V
CC
= 0 V or 3.6 V; V
I
= 5.5 V
V
CC
= 3.6 V; V
I
= V
CC
or GND
I/O data pins; V
CC
= 3.6 V
V
I
= V
CC
V
I
= 0 V
[2]
-
-
-
75
-75
[3]
[3]
500
-
-
[4]
-
0.5
0.1
0.1
130
-130
-
-
75
40
10
-5
±100
-
-
-
-500
125
±100
μA
μA
μA
μA
μA
μA
μA
μA
μA
-
-
0.1
0.1
10
±1
μA
μA
Typ[1]
2.5
0.3
-
-
Max
-
0.8
-12
12
Unit
V
V
mA
mA
Symbol
V
OH
V
OL
I
OH
I
OL
I
I
Parameter
HIGH-level output voltage
LOW-level output voltage
HIGH-level output current
LOW-level output current
input leakage current
I
OFF
I
BHL
I
BHH
I
BHLO
I
BHHO
I
CEX
I
O(pu/pd)
I
OZ
power-off leakage current
bus hold LOW current
bus hold HIGH current
bus hold LOW
overdrive current
bus hold HIGH
overdrive current
V
CC
= 0 V; V
I
or V
O
= 0 V to 4.5 V
V
CC
= 3 V; V
I
= 0.8 V
V
CC
= 3 V; V
I
= 2.0 V
V
CC
= 3.6 V; V
I
= 0 V to 3.6 V
V
CC
= 3.6 V; V
I
= 0 V to 3.6 V
output high leakage current output in HIGH-state when V
O
> V
CC
;
V
O
= 5.5 V; V
CC
= 3.0 V
power-up/power-down
output current
OFF-state output current
V
CC
≤ 1.2 V; V
O
= 0.5 V to V
CC
;
V
I
= GND or V
CC
; nOE = don’t care
V
CC
= 3.6 V; V
I
= V
IL
or V
IH
output HIGH: V
O
= 3.0 V
output LOW: V
O
= 0.5 V
-
-
-
-
[5]
[6]
-
-
0.5
0.5
0.07
4.2
0.07
0.1
5
-5
0.12
6
0.12
0.2
μA
μA
mA
mA
mA
mA
I
CC
supply current
V
CC
= 3.6 V; V
I
= GND or V
CC
; I
O
= 0 A
outputs HIGH
outputs LOW
outputs disabled
ΔI
CC
additional supply current
per input pin; V
CC
= 3 V to 3.6 V;
one input at V
CC
- 0.6 V and
other inputs at V
CC
or GND
nDIR and nOE; V
I
= 0 V or 3.0 V
V
I/O
= 0 V or 3.0 V
C
I
C
I/O
[1]
[2]
[3]
[4]
[5]
[6]
input capacitance
input/output capacitance
-
-
3
9
-
-
pF
pF
Typical values are measured at V
CC
= 3.3 V and T
amb
= 25 °C.
Unused pins at V
CC
or GND.
This is the bus hold overdrive current required to force the input to the opposite logic state.
This parameter is valid for any V
CC
between 0 V and 1.2 V with a transition time of up to 10 ms. From V
CC
= 1.2 V to V
CC
= 3.3 V ± 0.3
V a transition time of 100 μs is permitted. This parameter is valid for T
amb
= 25 °C only.
Measured with outputs pulled to V
CC
or GND.
This is the increase in supply current for each input at the specified voltage level other than V
CC
or GND.
74LVT162245B
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2018. All rights reserved
Product data sheet
Rev. 3 — 1 October 2018
5 / 12
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