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74LVT16652ADL,518

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22
9397 750 14402 © Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet Rev. 03 — 12 January 2005 6 of 21
Philips Semiconductors
74LVT16652A
3.3 V 16-bit bus transceiver/register; 3-state
1A3 9 data input or output (A-side)
1A4 10 data input or output (A-side)
GND 11 ground (0 V)
1A5 12 data input or output (A-side)
1A6 13 data input or output (A-side)
1A7 14 data input or output (A-side)
2A0 15 data input or output (A-side)
2A1 16 data input or output (A-side)
2A2 17 data input or output (A-side)
GND 18 ground (0 V)
2A3 19 data input or output (A-side)
2A4 20 data input or output (A-side)
2A5 21 data input or output (A-side)
V
CC
22 positive supply voltage
2A6 23 data input or output (A-side)
2A7 24 data input or output (A-side)
GND 25 ground (0 V)
2SAB 26 A to B select input
2CPAB 27 A to B clock input
2OEAB 28 A to B output enable input
2
OEBA 29 B to A output enable input
2CPBA 30 B to A clock input
2SBA 31 B to A select input
GND 32 ground (0 V)
2B7 33 data input or output (B-side)
2B6 34 data input or output (B-side)
V
CC
35 supply voltage
2B5 36 data input or output (B-side)
2B4 37 data input or output (B-side)
2B3 38 data input or output (B-side)
GND 39 ground (0 V)
2B2 40 data input or output (B-side)
2B1 41 data input or output (B-side)
2B0 42 data input or output (B-side)
1B7 43 data input or output (B-side)
1B6 44 data input or output (B-side)
1B5 45 data input or output (B-side)
GND 46 ground (0 V)
1B4 47 data input or output (B-side)
1B3 48 data input or output (B-side)
1B2 49 data input or output (B-side)
Table 3: Pin description
…continued
Symbol Pin Description
9397 750 14402 © Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet Rev. 03 — 12 January 2005 7 of 21
Philips Semiconductors
74LVT16652A
3.3 V 16-bit bus transceiver/register; 3-state
7. Functional description
7.1 Function table
[1] H = HIGH voltage level;
L = LOW voltage level;
X = don’t care;
↑ = LOW-to-HIGH clock transition.
[2] The data output function may be enabled or disabled by various signals at the nOEBA and nOEAB inputs. Data input functions are
always enabled, i.e., data at the bus pins will be stored on every LOW-to-HIGH transition of the clock.
[3] If both select controls (nSAB and nSBA) are LOW, then clocks can occur simultaneously. If either select control is HIGH, the clocks must
be staggered in order to load both registers.
V
CC
50 supply voltage
1B1 51 data input or output (B-side)
1B0 52 data input or output (B-side)
GND 53 ground (0 V)
1SBA 54 B to A select input
1CPBA 55 B to A clock input
1
OEBA 56 B to A output enable input
Table 3: Pin description
…continued
Symbol Pin Description
Table 4: Function table
[1]
Operating mode Input Data I/O
nOEAB nOEBA nCPAB nCPBA nSAB nSBA nAx nBx
Isolation L H H or L H or L X X input input
Store A and B data L H ↑↑X X input input
Store A, hold B X H ↑ H or L X X input unspecified
output
[2]
Store A in both registers H H ↑↑
[3]
X input unspecified
output
[2]
Hold A, store B L X H or L ↑ X X unspecified
output
[2]
input
Store B in both registers L L ↑↑X
[3]
unspecified
output
[2]
input
Real-time B data to A bus L L XXXLoutput input
Store B data to A bus L L X H or L X H output input
Real-time A data to B bus H H X X L X input output
Store A data to B bus H H H or L X H X input output
Stored A data to B bus and
stored B data to A bus
H L H or L H or L H H output output
9397 750 14402 © Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet Rev. 03 — 12 January 2005 8 of 21
Philips Semiconductors
74LVT16652A
3.3 V 16-bit bus transceiver/register; 3-state
7.2 Bus management function
Figure 5 demonstrates the four fundamental bus management functions that can be
performed with the 74LVT16652A. The select pins determine whether data is stored or
transferred through the device in real time. The output enable pins determine the direction
of the data flow.
a. Real-time bus transfer bus B to bus A b. Real-time bus transfer bus A to bus B
c. Storage from bus A only, bus B only, or bus A plus
bus B
d. Transfer stored data to bus A or bus B
Fig 5. Example of bus management functions
001aac348
nCPAB
X
AB
nCPBA
X
nOEBA
L
nSAB
X
nSBA
L
nOEAB
L
001aac349
nCPAB
X
AB
nCPBA
X
nSAB
L
nSBA
X
nOEBA
H
nOEAB
H
001aac350
nCPAB
X
AB
nCPBA
X
nOEBA
H
X
H
nSAB
X
X
X
nSBA
X
X
X
nOEAB
X
L
L
001aac351
nCPAB
H/L
AB
nCPBA
H/L
nSAB
H
nSBA
H
nOEBA
L
nOEAB
H
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22

74LVT16652ADL,518

Mfr. #:
Buy 74LVT16652ADL,518
Manufacturer:
NXP Semiconductors
Description:
Bus Transceivers 3.3V 16-BIT BUS XCVR
Lifecycle:
New from this manufacturer.
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