Important notice
Dear Customer,
On 7 February 2017 the former NXP Standard Product business became a new company with the
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Nexperia.
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the references to Nexperia, as shown below.
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Replace the copyright notice at the bottom of each page or elsewhere in the document, depending on
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- © NXP N.V. (year). All rights reserved or © Koninklijke Philips Electronics N.V. (year). All rights
reserved
Should be replaced with:
-
© Nexperia B.V. (year). All rights reserved.
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Team Nexperia
74LVT16652A
3.3 V 16-bit bus transceiver/register; 3-state
Rev. 03 — 12 January 2005
Product data sheet
1. General description
The 74LVT16652A is a high-performance BiCMOS product designed for V
CC
operation at
3.3 V. The device can be used as two 8-bit transceivers or one 16-bit transceiver.
Complimentary output enable (OEAB and OEBA) inputs are provided to control the
transceiver functions. Select control (SAB and SBA) inputs are provided to select whether
real-time or stored data is transferred. A LOW input level selects real-time data, and a
HIGH input level selects stored data. The circuitry used for select control eliminates the
typical decoding glitch that occurs in a multiplexer during the transition between stored
and real-time data.
Data on the A or B bus, or both, can be stored in the internal flip-flops by LOW-to-HIGH
transitions at the appropriate clock (CPAB or CPBA) inputs regardless of the levels on the
select control or output enable inputs. When SAB and SBA are in real-time transfer mode,
it is possible to store data without using the internal D-type flip-flops by simultaneously
enabling OEAB and OEBA. In this configuration, each output reinforces its input. Thus,
when all other data sources to the two sets of bus lines are at high- impedance, each set
of bus lines remains at its last level configuration.
2. Features
s
s
s
s
s
s
s
s
s
s
s
s
16-bit bus interface
3-state buffers
Output capability: +64 mA and
−32
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 and extraction permitted
Power-up reset
Power-up 3-state
No bus current loading when output is tied to 5 V bus
Latch-up protection exceeds 500 mA per JESD78
ESD protection:
x
MIL STD 883 method 3015: exceeds 2000 V
x
Machine model: exceeds 200 V
Philips Semiconductors
74LVT16652A
3.3 V 16-bit bus transceiver/register; 3-state
3. Quick reference data
Table 1:
Quick reference data
T
amb
= 25
°
C.
Symbol Parameter
t
PLH
propagation delay
nAx to nBx or nBx to
nAx
propagation delay
nAx to nBx or nBx to
nAx
input capacitance
control pins
I/O pin capacitance
Conditions
C
L
= 50 pF; V
CC
= 3.3 V
Min
-
Typ
2.1
Max
-
Unit
ns
t
PHL
C
L
= 50 pF; V
CC
= 3.3 V
-
2.4
-
ns
C
I
C
I/O
I
CC
V
I
= 0 V or 3.0 V
outputs disabled;
V
I
= 0 V or 3.0 V
-
-
-
3
9
70
-
-
-
pF
pF
µA
quiescent supply current outputs disabled;
V
CC
= 3.6 V
4. Ordering information
Table 2:
Ordering information
Package
Temperature range Name
74LVT16652ADGG
74LVT16652ADL
−40 °C
to +85°C
−40 °C
to +85°C
TSSOP56
SSOP56
Description
Version
plastic thin shrink small outline package; 56 leads; SOT364-1
body width 6.1 mm
plastic shrink small outline package; 56 leads;
body width 7.5 mm
SOT371-1
Type number
9397 750 14402
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 03 — 12 January 2005
2 of 21
Philips Semiconductors
74LVT16652A
3.3 V 16-bit bus transceiver/register; 3-state
5. Functional diagram
5
6
8
9
10
12
13
14
1A0 1A1 1A2 1A3 1A4 1A5 1A6 1A7
2
3
55
54
1CPAB
1SAB
1CPBA
1SBA
1B0 1B1 1B2 1B3 1B4 1B5 1B6 1B7
1OEAB
1OEBA
1
56
52
51
49
48
47
45
44
43
15
16
18
19
20
22
23
24
2A0 2A1 2A2 2A3 2A4 2A5 2A6 2A7
27
26
30
31
2CPAB
2SAB
2CPBA
2SBA
2B0 2B1 2B2 2B3 2B4 2B5 2B6 2B7
2OEAB
2OEBA
28
29
42
41
40
38
37
36
34
33
001aac344
Fig 1. Logic symbol
56
1
54
3
55
2
EN1[BA]
EN2[AB]
G5
G6
C3
C4
1
1
5
3D
52
29
28
31
26
31
27
EN7[BA]
EN8[AB]
G11
G12
C9
C10
1
7
11 9D
42
5
15
5 1
1
4D 6
2
6
1
6
8
9
10
12
13
14
51
49
48
47
45
44
43
16
17
19
20
21
23
24
11 1
1
10D 12
8
1 12
41
40
38
37
36
34
33
001aac345
Fig 2. IEC Logic symbol
9397 750 14402
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 03 — 12 January 2005
3 of 21
Philips Semiconductors
74LVT16652A
3.3 V 16-bit bus transceiver/register; 3-state
nOEBA
nOEAB
nCPBA
nSBA
nCPAB
nSAB
1 OF 16 CHANNELS
Q
1D
C1
nA0
1D
C1
Q
nB0
nA1
nA2
nA3
nA4
nA5
nA6
nA7
OTHER CHANNELS
nB1
nB2
nB3
nB4
nB5
nB6
nB7
001aac346
Fig 3. Logic diagram
9397 750 14402
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 03 — 12 January 2005
4 of 21
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