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74ABT162245 |
INTEGRATED CIRCUITS |
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74ABT162245A
74ABTH162245A
16-Bit bus transceiver with 30Ω series termination resistors (3-State)
Product specification |
1998 Feb 25 |
Supersedes data of 1996 Nov 20
IC23 Data Handbook
m n r
Philips Semiconductors |
Product specification |
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16-bit bus transceiver with 30Ω series |
74ABT162245A |
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termination resistors (3-State) |
74ABTH162245A |
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FEATURES
•16-bit bidirectional bus interface
•Power-up 3-State
•Multiple VCC and GND pins minimize switching noise
•3-State buffers
•Output capability: +12mA/±32mA
•Latch-up protection exceeds 500mA per JEDEC Std 17
•ESD protection exceeds 2000 V per MIL STD 883 Method 3015 and 200V per Machine Model
•Same part as 74ABT16245A-1
•74ABTH162245A incorporates bus hold data inputs which eliminate the need for external pull-up resistors to hold unused inputs
•Bus-hold data inputs eliminate the need for external pull-up resistors to hold unused inputs
DESCRIPTION
The 74ABT162245A high-performance BiCMOS device combines low static and dynamic power dissipation with high speed.
The 74ABT162245A 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 two Output Enable (1OE, 2OE) inputs for easy cascading and two Direction (1DIR, 2DIR) inputs for direction control.
The 74ABT162245A is designed with 30 ohm series resistance in both the upper and lower output structures on both A and B ports. This design reduces line noise in applications such as memory address drivers, clock drivers, and bus receiver/transmitters.
The 74ABT162245A is the same as the 74ABT16245A-1. The part number has been changed to reflect industry standards
Two options are available, 74ABT162245A which does not have the bus hold feature and the 74ABTH162245A which incorporates the bus hold feature.
QUICK REFERENCE DATA
SYMBOL |
PARAMETER |
CONDITIONS |
TYPICAL |
UNIT |
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Tamb = 25°C; GND = 0V |
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tPLH |
Propagation delay |
CL = 50pF; VCC = 5V |
2.0 |
ns |
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tPHL |
nAx to nBx or nBx to nAx |
3.0 |
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CIN |
Input capacitance |
VI = 0V or VCC |
3 |
pF |
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CI/O |
I/O pin capacitance |
VO = 0V or VCC; 3-State |
7 |
pF |
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ICCZ |
Quiescent supply current |
Outputs disabled; VCC = 5.5V |
300 |
nA |
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ICCL |
Outputs Low; VCC = 5.5V |
10 |
mA |
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ORDERING INFORMATION
PACKAGES |
TEMPERATURE RANGE |
OUTSIDE NORTH AMERICA |
NORTH AMERICA |
DWG NUMBER |
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48-Pin Plastic SSOP Type III |
±40°C to +85°C |
74ABT162245A DL |
BT162245A DL |
SOT370-1 |
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48-Pin Plastic TSSOP Type II |
±40°C to +85°C |
74ABT162245A DGG |
BT162245A DGG |
SOT362-1 |
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48-Pin Plastic SSOP Type III |
±40°C to +85°C |
74ABTH162245A DL |
BH162245A DL |
SOT370-1 |
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48-Pin Plastic TSSOP Type II |
±40°C to +85°C |
74ABTH162245A DGG |
BH162245A DGG |
SOT362-1 |
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1998 Feb 25 |
2 |
853-1772 19018 |
Philips Semiconductors |
Product specification |
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16-bit bus transceiver with 30Ω series |
74ABT162245A |
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termination resistors (3-State) |
74ABTH162245A |
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PIN CONFIGURATION
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1DIR |
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1 |
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48 |
1OE |
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1B0 |
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1A0 |
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2 |
47 |
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1B1 |
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1A1 |
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3 |
46 |
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GND |
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GND |
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4 |
45 |
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1B2 |
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1A2 |
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5 |
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44 |
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1B3 |
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1A3 |
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6 |
43 |
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VCC |
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7 |
42 |
VCC |
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1B4 |
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8 |
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41 |
1A4 |
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1B5 |
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1A5 |
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9 |
40 |
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GND |
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GND |
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10 |
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39 |
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1B6 |
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1A6 |
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11 |
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38 |
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1B7 |
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1A7 |
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12 |
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37 |
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2B0 |
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2A0 |
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13 |
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36 |
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2B1 |
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2A1 |
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14 |
35 |
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GND |
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GND |
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15 |
34 |
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2B2 |
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2A2 |
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16 |
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33 |
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2B3 |
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2A3 |
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17 |
32 |
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VCC |
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18 |
31 |
VCC |
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2B4 |
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19 |
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30 |
2A4 |
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2B5 |
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2A5 |
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20 |
29 |
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GND |
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21 |
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28 |
GND |
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2B6 |
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22 |
27 |
2A6 |
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2B7 |
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23 |
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26 |
2A7 |
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2DIR |
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24 |
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25 |
2OE |
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SA00020 |
PIN DESCRIPTION
SYMBOL |
PIN NUMBER |
NAME AND FUNCTION |
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1DIR, 2DIR |
1, 24 |
Direction control inputs |
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(Active-High) |
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47, 46, 44, 43 |
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1A0 ± 1A7, |
41, 40, 38, 37 |
Data inputs/outputs (A side) |
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2A0 ± 2A7 |
36, 35, 33, 32 |
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30, 29, 27, 26 |
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2, 3, 5, 6 |
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1B0 ± 1B7 |
8, 9, 11, 12 |
Data inputs/outputs (B side) |
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2B0 ± 2B7 |
13, 14, 16, 17 |
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19, 20, 22, 23 |
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48, 25 |
Output enables |
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1OE, |
2OE |
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GND |
4, 10, 15, 21 |
Ground (0V) |
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28, 34, 39, 45 |
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VCC |
7, 18, 31, 42 |
Positive supply voltage |
LOGIC SYMBOL
1DIR 1 |
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2DIR 24 |
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48 |
1OE |
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25 |
2OE |
1A0 47 |
2 |
1B0 |
2A0 36 |
13 |
2B0 |
1A1 46 |
3 |
1B1 |
2A1 35 |
14 |
2B1 |
1A2 44 |
5 |
1B2 |
2A2 33 |
16 |
2B2 |
1A3 43 |
6 |
1B3 |
2A3 32 |
17 |
2B3 |
1A4 41 |
8 |
1B4 |
2A4 30 |
19 |
2B4 |
1A5 40 |
9 |
1B5 |
2A5 29 |
20 |
2B5 |
1A6 38 |
11 |
1B6 |
2A6 27 |
22 |
2B6 |
1A7 37 |
12 |
1B7 |
2A7 26 |
23 |
2B7 |
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SA00021 |
FUNCTION TABLE |
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INPUTS |
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INPUTS/OUTPUTS |
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nDIR |
nAx |
nBx |
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nOE |
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L |
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L |
A = B |
Inputs |
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L |
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H |
Inputs |
B = A |
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H |
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X |
Z |
Z |
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H |
= HIGH voltage level |
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L |
= LOW voltage level |
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X |
= D0n't care |
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Z = High impedance ªoffº state
1998 Feb 25 |
3 |
Philips Semiconductors |
Product specification |
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16-bit bus transceiver with 30Ω series |
74ABT162245A |
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termination resistors (3-State) |
74ABTH162245A |
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LOGIC SYMBOL (IEEE/IEC) |
SCHEMATIC OF EACH OUTPUT |
48 |
G3 |
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1 |
3 EN1 (BA) |
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3 EN2 (AB) |
25 |
G6 |
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24 |
6 EN4 (BA) |
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6 EN5 (AB) |
47 |
1 |
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2 |
46 |
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44 |
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43 |
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41 |
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40 |
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38 |
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37 |
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36 |
4 |
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5 |
35 |
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33 |
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32 |
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30 |
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29 |
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27 |
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26 |
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VCC |
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27Ω |
2 |
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3 |
OUTPUT |
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5 |
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6 |
27Ω |
8 |
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9 |
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11 |
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12 |
GND |
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13 |
SA00042 |
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14 |
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16 |
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17 |
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19 |
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20 |
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22 |
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23 |
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SA00022 |
1998 Feb 25 |
4 |