Philips 74abt h16541 DATASHEETS
INTEGRATED CIRCUITS
74ABT16541
74ABTH16541
16-bit buffer/line driver (3-State)
Product specification
Supersedes data of 1995 Sep 18
IC23 Data Handbook
1998 Feb 25
Philips Semiconductors Product specification
Quiescent supply current
16-bit buffer/line driver (3-State)
FEA TURES
•Power-up 3-State
•Multiple V
•Provides ideal interface and increases fan-out of MOS
Microprocessors
•3-State buffers sink 64mA and source 32mA
•74ABTH16541 incorporates bus-hold data inputs which eliminate
the need for external pull-up resistors to hold unused inputs
•Latch-up protection exceeds 500mA per Jedec Std 17
•ESD protection exceeds 2000 V per MIL STD 883 Method 3015
and 200 V per Machine Model
•Two 8-bit bus interfaces
•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
C
t
PLH
t
PHL
C
OUT
I
CCZ
I
CCL
IN
Propagation delay
nAx to nYx
Input capacitance VI = 0V or V
Output capacitance VO = 0V or VCC; 3-State 6 pF
pp
CL = 50pF; VCC = 5V
Outputs disabled; VCC =5.5V 500 µA
Outputs LOW; VCC = 5.5V 8 mA
74ABT16541
74ABTH16541
DESCRIPTION
The 74ABT16541 high-performance BiCMOS device combines low
static and dynamic power dissipation with high speed and high
output drive.
The 74ABT16541 has two octal buffers that are ideal for driving bus
lines. The outputs are all capable of sinking 64mA and sourcing
32mA.
Two options are available, 74ABT16541 which does not have the
bus-hold feature and 74ABTH16541 which incorporates the
bus-hold feature.
CONDITIONS
T
= 25°C; GND = 0V
amb
CC
TYPICAL UNIT
2.0
1.5
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 74ABT16541 DL BT16541 DL SOT370-1
48-Pin Plastic TSSOP Type II –40°C to +85°C 74ABT16541 DGG BT16541 DGG SOT362-1
48-Pin Plastic SSOP Type III –40°C to +85°C 74ABTH16541 DL BH16541 DL SOT370-1
48-Pin Plastic TSSOP Type II –40°C to +85°C 74ABTH16541 DGG BH16541 DGG SOT362-1
PIN DESCRIPTION
PIN NUMBER SYMBOL NAME AND FUNCTION
47, 46, 44, 43,
41, 40, 38, 37,
36, 35, 33, 32,
30, 29, 27, 26
2, 3, 5, 6,
8, 9, 11, 12,
13, 14, 16, 17
19, 20, 22, 23
1, 48
24, 25
4, 10, 15, 21
28, 34, 39, 45
7, 18, 31, 42 V
1A0 - 1A7
2A0 - 2A7
1Y0 - 1Y7,
2Y0 - 2Y7
1OE0, 1OE1,
2OE0, 2OE1
GND Ground (0V)
CC
Data inputs
Data outputs
Output enables
Positive supply voltage
1998 Feb 25 853-1807 19018
2
Philips Semiconductors Product specification
16-bit buffer/line driver (3-State)
LOGIC SYMBOL
1
0
1OE
48
1OE
1
1A0
1A1
1A2
1A3
1A4
1A5
1A6
1A7
47
46
44
43
41
40
38
37
2
3
5
6
8
9
11
12
PIN CONFIGURA TION
1
1OE0
2
1Y0
1Y1
3
GND
4
1Y2
5
1Y3
6
7
V
CC
8
1Y4
1Y5
9
GND
10
1Y6
11
1Y7
12
2Y0
13
2Y1
14
GND
15
16
2Y2
2Y3
17
18
V
CC
2Y4
19
20
2Y5
21
GND
22
2Y6
23
2Y7
24
0
2OE
1Y0
1Y1
1Y2
1Y3
1Y4
1Y5
1Y6
1Y7
2OE
2OE
2A0
2A1
2A2
2A3
2A4
2A5
2A6
2A7
0
1
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
25
36
35
33
32
30
29
27
26
1OE
1A0
1A1
GND
1A2
1A3
V
CC
1A4
1A5
GND
1A6
1A7
2A0
2A1
GND
2A2
2A3
V
CC
2A4
2A5
GND
2A6
2A7
2OE
SA00068
1
1
13
2Y0
14
2Y1
16
2Y2
17
2Y3
19
2Y4
20
2Y5
22
2Y6
23
2Y7
SA00069
74ABT16541
74ABTH16541
LOGIC SYMBOL (IEEE/IEC)
&
EN1
&
EN2
1 ∇
1
2 ∇
1
1A0
1A1
1A2
1A3
1A4
1A5
1A6
1A7
2A0
2A1
2A2
2A3
2A4
2A5
2A6
2A7
1
0
48
1
24
0
25
1
47
46
44
43
41
40
38
37
36
35
33
32
30
29
27
26
1OE
1OE
2OE
2OE
FUNCTION TABLE
INPUTS OUTPUTS
nOE0 nOE1 nIx nYx
L L L L
L L H H
X H X Z
H X X Z
H = HIGH voltage level
L = LOW voltage level
X = D0n’t care
Z = High impedance “off” state
2
3
5
6
8
9
11
12
13
14
16
17
19
20
22
23
SA00070
1Y0
1Y1
1Y2
1Y3
1Y4
1Y5
1Y6
1Y7
2Y0
2Y1
2Y2
2Y3
2Y4
2Y5
2Y6
2Y7
1998 Feb 25
3
Loading...