INTEGRATED CIRCUITS
DATA SHEET
74LVC162245A; 74LVCH162245A
16-bit transceiver with direction pin;
30
Ω
series termination resistors;
5 V tolerant input/output; 3-state
Product specification
Supersedes data of 1998 Feb 17
2003 Dec 08
Philips Semiconductors
Product specification
16-bit transceiver with direction pin; 30
Ω
series
74LVC162245A;
termination resistors; 5 V tolerant input/output; 3-state 74LVCH162245A
FEATURES
•
5 V tolerant inputs/outputs for interfacing with 5 V logic
•
Wide supply voltage range from 1.2 to 3.6 V
•
CMOS low power consumption
•
MULTIBYTE
TM
flow-through standard pin-out
architecture
•
Low inductance multiple power and ground pins for
minimum noise and ground bounce
•
Direct interface with TTL levels
•
Inputs accept voltages up to 5.5 V
•
Integrated 30
Ω
termination resistors
•
High-impedance when V
CC
= 0 V
•
All data inputs have bushold (74LVCH162245A only)
•
Complies with JEDEC standard no. 8-1A
•
ESD protection:
HBM EIA/JESD22-A114-A exceeds 2000 V
MM EIA/JESD22-A115-A exceeds 200 V.
•
Specified from
−40
to +85
°C
and
−40
to +125
°C.
DESCRIPTION
The 74LVC(H)162245A is a high-performance, low-power,
low-voltage, Si-gate CMOS device, superior to most
advanced CMOS compatible TTL families.
Inputs can be driven from either 3.3 or 5 V devices. In
3-state operation, outputs can handle 5 V. These features
allow the use of these devices as translators in a mixed
3.3 and 5 V environment.
The 74LVC(H)162245A is a 16-bit transceiver featuring
non-inverting 3-state bus compatible outputs in both send
and receive directions.
The 74LVC(H)162245A features two output enable (nOE)
inputs for easy cascading and two send/receive (nDIR)
inputs for direction control. nOE controls the outputs so
that the buses are effectively isolated. This device can be
used as two 8-bit transceivers or one 16-bit transceiver.
The 74LVCH162245A bushold data inputs eliminates the
need for external pull-up resistors to hold unused inputs.
The 74LVC(H)162245A is designed with 30
Ω
series
termination resistors in both HIGH and LOW output stages
to reduce line noise.
QUICK REFERENCE DATA
GND = 0 V; T
amb
= 25
°C;
t
r
= t
f
≤
2.5 ns.
SYMBOL
t
PHL
/t
PLH
C
I
C
I/O
C
PD
Note
1. C
PD
is used to determine the dynamic power dissipation (P
D
in
µW).
P
D
= C
PD
×
V
CC2
×
f
i
×
N +
Σ(C
L
×
V
CC2
×
f
o
) where:
f
i
= input frequency in MHz;
f
o
= output frequency in MHz;
C
L
= output load capacitance in pF;
V
CC
= supply voltage in Volts;
N = total load switching outputs;
Σ(C
L
×
V
CC2
×
f
o
) = sum of the outputs.
2. The condition is V
I
= GND to V
CC
.
PARAMETER
propagation delay nAn to nBn; nBn to nAn
input capacitance
input/output capacitance
power dissipation capacitance
V
CC
= 3.3 V; notes 1 and 2
CONDITIONS
C
L
= 50 pF; V
CC
= 3.3 V
TYPICAL
3.3
5.0
10
28
ns
pF
pF
pF
UNIT
2003 Dec 08
2
Philips Semiconductors
Product specification
16-bit transceiver with direction pin; 30
Ω
series
termination resistors; 5 V tolerant input/output; 3-state
FUNCTION TABLE
See note 1.
INPUT
nOE
L
L
H
Note
1. H = HIGH voltage level;
L = LOW voltage level;
X = don’t care;
Z = high-impedance OFF-state.
ORDERING INFORMATION
PACKAGE
TYPE NUMBER
TEMPERATURE RANGE
74LVC162245ADL
74LVCH162245ADL
74LVC162245ADGG
74LVCH162245ADGG
−40
to +125
°C
−40
to +125
°C
−40
to +125
°C
−40
to +125
°C
PINS
48
48
48
48
PACKAGE
SSOP48
SSOP48
TSSOP48
TSSOP48
nDIR
L
H
X
nAn
A=B
inputs
Z
74LVC162245A;
74LVCH162245A
OUTPUT
nBn
inputs
B=A
Z
MATERIAL
plastic
plastic
plastic
plastic
CODE
SOT370-1
SOT370-1
SOT362-1
SOT362-1
2003 Dec 08
3
Philips Semiconductors
Product specification
16-bit transceiver with direction pin; 30
Ω
series
termination resistors; 5 V tolerant input/output; 3-state
PINNING
SYMBOL
1DIR
n.c.
1B0
1B1
GND
1B2
1B3
V
CC
1B4
1B5
1B6
1B7
2B0
2B1
2B2
2B3
2B4
2B5
2B6
2B7
2DIR
2OE
2A7
2A6
2A5
2A4
2A3
2A2
2A1
2A0
1A7
1A6
1
−
2
3
PIN
DESCRIPTION
direction control input
not connected
data input/output
data input/output
SYMBOL
1A5
1A4
1A3
1A2
1A1
1A0
1OE
40
41
43
44
46
47
48
PIN
74LVC162245A;
74LVCH162245A
DESCRIPTION
data input/output
data input/output
data input/output
data input/output
data input/output
data input/output
output enable input
(active LOW)
4, 10, 15, 21, 28, ground (0 V)
34, 39, 45
5
6
7, 18, 31, 42
8
9
11
12
13
14
16
17
19
20
22
23
24
25
26
27
29
30
32
33
35
36
37
38
data input/output
data input/output
supply voltage
data input/output
data input/output
data input/output
data input/output
data input/output
data input/output
data input/output
data input/output
data input/output
data input/output
data input/output
data input/output
direction control input
output enable input
(active LOW)
data input/output
data input/output
data input/output
data input/output
data input/output
data input/output
data input/output
data input/output
data input/output
data input/output
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
001aaa156
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
162245
Fig.1 Pin configuration SSOP48 and TSSOP48.
2003 Dec 08
4
Philips Semiconductors
Product specification
16-bit transceiver with direction pin; 30
Ω
series
termination resistors; 5 V tolerant input/output; 3-state
74LVC162245A;
74LVCH162245A
handbook, full pagewidth
1DIR
1
48
2DIR
1OE
2A0
2
1B0
2A1
3
1B1
2A2
5
1B2
2A3
6
1B3
2A4
8
1B4
2A5
9
1B5
2A6
11
1B6
2A7
12
1B7
24
25
36
13
35
14
33
16
32
17
30
19
29
20
27
22
26
23
2B7
2B6
2B5
2B4
2B3
2B2
2B1
2B0
2OE
1A0
47
1A1
46
1A2
44
1A3
43
1A4
41
1A5
40
1A6
38
1A7
37
MNA708
Fig.2 Logic symbol.
2003 Dec 08
5
