Philips 74ABT16245B Technical data
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74ABT16245B
74ABTH16245B
16-bit bus transceiver (3-state)
Product specification
Supersedes data of 1996 Nov 20
IC23 Data Handbook
1998 Feb 25
Philips Semiconductors Product specification
Quiescent su ly current
16-bit bus transceiver (3-State)
FEA TURES
•16-bit bidirectional bus interface
•Power-up 3-State
•Multiple V
•3-State buffers
•Output capability: +64 mA/–32mA
•Latch–up protection exceeds 500mA per JEDEC Std 17
•Live insertion/extraction permitted
•ESD protection exceeds 2000 V per MIL STD 883 Method 3015
and 200V per Machine Model
•74ABTH16245B 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
QUICK REFERENCE DATA
SYMBOL PARAMETER
and GND pins minimize switching noise
CC
t
PLH
t
PHL
C
C
I
CCZ
I
CCL
IN
I/O
Propagation delay
nAx to nBx or nBx to nAx
Input capacitance VI = 0V or V
I/O pin capacitance VO = 0V or VCC; 3-State 7 pF
pp
CL = 50pF; VCC = 5V
Outputs disabled; VCC =5.5V 500 µA
Output Low; VCC =5.5V 10 mA
74ABT16245B
74ABTH16245B
DESCRIPTION
The 74ABT16245B high-performance BiCMOS device combines
low static and dynamic power dissipation with high speed and high
output drive.
The 74ABT16245B device is a dual octal 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
(1DIR, 2DIR) inputs for direction control.
Two options are available, 74ABT16245B which does not have the
bus hold feature and the 74ABTH16245B which incorporates the
bus hold feature.
CONDITIONS
T
= 25°C; GND = 0V
amb
CC
, 2OE) inputs for easy cascading and two Direction
TYPICAL UNIT
2.0
2.3
4 pF
ns
ORDERING INFORMATION
PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA DWG NUMBER
48-Pin Plastic SSOP Type III –40°C to +85°C 74ABT16245B DL BT16245B DL SOT370-1
48-Pin Plastic TSSOP Type II –40°C to +85°C 74ABT16245B DGG BT16245B DGG SOT362-1
48-Pin Plastic SSOP Type III –40°C to +85°C 74ABTH16245B DL BH16245B DL SOT370-1
48-Pin Plastic TSSOP Type II –40°C to +85°C 74ABTH16245B DGG BH16245B DGG SOT362-1
1998 Feb 25 853-1742 19018
2
Philips Semiconductors Product specification
16-bit bus transceiver (3-State)
PIN CONFIGURATION
1DIR
GND
V
GND
GND
V
GND
2DIR
LOGIC SYMBOL
1
1DIR
47
1A0
46
1A1
44
1A2
43
1A3
41
1A4
40
1A5
38
1A6
37 12
1A7
1B0
1B1
1B2
1B3
CC
1B4
1B5
1B6
1B7
2B0
2B1
2B2
2B3
CC
2B4
2B5
2B6
2B7
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48
1OE
2
1B0
3
1B1
5
1B2
6
1B3
8
1B4
9
1B5
11
1B6
1B7
48
1OE
47
1A0
46
1A1
GND
45
44
1A2
43
1A3
42
V
CC
41
1A4
1A5
40
GND
39
1A6
38
1A7
37
2A0
36
2A1
35
GND
34
33
2A2
2A3
32
31
V
CC
2A4
30
29
2A5
28
GND
27
2A6
26
2A7
25
2OE
SA00020
24
2DIR
36
2A0
35
2A1
33
2A2
32
2A3
30
2A4
29
2A5
27
2A6
26 23
2A7
74ABT16245B
74ABTH16245B
PIN DESCRIPTION
SYMBOL
1DIR,
2DIR
1A0 – 1A7,
2A0 – 2A7
1B0 – 1B7
2B0 – 2B7
1OE, 2OE 48, 25 Output enables
GND
V
CC
LOGIC SYMBOL (IEEE/IEC)
25
2OE
13
2B0
14
2B1
16
2B2
17
2B3
19
2B4
20
2B5
22
2B6
2B7
PIN
NUMBER
1, 24
NAME AND FUNCTION
Direction control inputs
(Active-High)
47, 46, 44, 43
41, 40, 38, 37
36, 35, 33, 32
Data inputs/outputs (A side)
30, 29, 27, 26
2, 3, 5, 6
8, 9, 11, 12
13, 14, 16, 17
Data inputs/outputs (B side)
19, 20, 22, 23
4, 10, 15, 21
28, 34, 39, 45
Ground (0V)
7, 18, 31, 42 Positive supply voltage
48
1OE
1
1DIR
25
2OE
24
2DIR
47
1A0
46
1A1
44 5
1A2
43 6
1A3
41 8
1A4
40 9
1A5
38 11
1A6
37 12
1A7
36
2A0
35
2A1
33 16
2A2
32 17
2A3
30 19
2A4
29 20
2A5
27 22
2A6
26 23
2A7
G3
3 EN1 (BA)
3 EN2 (AB)
G6
6 EN4 (BA)
6 EN5 (AB)
∇ 1
2 ∇
∇ 4
5 ∇
2
3
13
14
SA00022
1B0
1B1
1B2
1B3
1B4
1B5
1B6
1B7
2B0
2B1
2B2
2B3
2B4
2B5
2B6
2B7
1998 Feb 25
SA00021
3
Philips Semiconductors Product specification
I
DC output current
mA
SYMBOL
PARAMETER
UNIT
16-bit bus transceiver (3-State)
FUNCTION TABLE
INPUTS INPUTS/OUTPUTS
nOE nDIR nAx nBx
L L A = B Inputs
L H Inputs B = A
H X Z Z
H = High voltage level
L = Low voltage level
X = Don’t care
Z = High impedance “off” scale
ABSOLUTE MAXIMUM RATINGS
SYMBOL
V
V
CC
I
IK
V
I
OK
OUT
OUT
T
stg
DC supply voltage –0.5 to +7.0 V
DC input diode current VI < 0 –18 mA
DC input voltage
I
DC output diode current VO < 0 –50 mA
DC output voltage
p
Storage temperature range –65 to 150 °C
NOTES:
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the
device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability .
2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction
temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150°C.
3. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
PARAMETER CONDITIONS RATING UNIT
3
3
1, 2
output in Off or High state –0.5 to +5.5 V
output in Low state 128
output in High state –64
74ABTH16245B
–1.2 to +7.0 V
74ABT16245B
RECOMMENDED OPERATING CONDITIONS
1998 Feb 25
LIMITS
Min Max
V
CC
V
V
V
I
OH
I
OL
DC supply voltage 4.5 5.5 V
Input voltage 0 V
I
High-level input voltage 2.0 V
IH
Low-level Input voltage 0.8 V
IL
High-level output current –32 mA
Low-level output current 64 mA
CC
V
∆t/∆v Input transition rise or fall rate 0 10 ns/V
T
amb
Operating free-air temperature range –40 +85 °C
4
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