INTEGRATED CIRCUITS
74ALVT16541
2.5V/3.3V 16-bit buffer/driver (3-State)
Product specification
Supersedes data of 1996 Aug 13
IC23 Data Handbook
1998 Feb 13
Philips
Semiconductors
Philips Semiconductors
Product specification
2.5V/3.3V 16-bit buffer/driver (3-State)
74ALVT16541
FEATURES
•
16-bit universal bus interface
•
5V I/O compatibile
•
3-State buffers
•
Output capability: +64mA/-32mA
•
TTL input and output switching levels
•
Input and output interface capability to systems at 5V supply
•
Bus-hold data inputs eliminate the need for external pull-up
resistors to hold unused inputs
DESCRIPTION
The 74ALVT16541 is a high-performance BiCMOS product
designed for V
CC
operation at 2.5V or 3.3V with I/O compatibility up
to 5V.
This device can be used as two octal buffers or one 16-bit buffer.
The device is ideal for driving bus lines.
•
Live insertion/extraction permitted
•
Power-up 3-State
•
No bus current loading when output is tied to 5V bus
•
Latch-up protection exceeds 500mA per JEDEC Std 17
•
ESD protection exceeds 2000V per MIL STD 883 Method 3015
and 200V per Machine Model
QUICK REFERENCE DATA
SYMBOL
t
PLH
t
PHL
C
IN
C
Out
I
CCZ
PARAMETER
Propagation delay
nAx to nYx
Input capacitance nOEx
Output pin capacitance
Total supply current
C
L
= 50pF
V
I
= 0V or V
CC
Outputs disabled; V
O
= 0V or V
CC
Outputs disabled
CONDITIONS
T
amb
= 25°C
TYPICAL
2.5V
1.8
1.7
3
9
40
3.3V
1.4
1.4
3
9
70
UNIT
ns
pF
pF
µA
ORDERING INFORMATION
PACKAGES
48-Pin Plastic SSOP Type III
48-Pin Plastic TSSOP Type II
TEMPERATURE RANGE
–40°C to +85°C
–40°C to +85°C
OUTSIDE NORTH AMERICA
74ALVT16541 DL
74ALVT16541 DGG
NORTH AMERICA
AV16541 DL
AV16541 DGG
DWG NUMBER
SOT370-1
SOT362-1
LOGIC SYMBOL
1OE0
1OE1
1
48
2OE0
2OE1
2
3
5
6
8
9
1Y0
1Y1
1Y2
1Y3
1Y4
1Y5
2A0
2A1
2A2
2A3
2A4
2A5
2A6
2A7
24
25
PIN DESCRIPTION
PIN NUMBER
47, 46, 44, 43,
41, 40, 38, 37,
36, 35, 33, 32,
30, 29, 27, 26
13
14
16
17
19
20
22
23
2Y0
2Y1
2Y2
2Y3
2Y4
2Y5
2Y6
2Y7
SYMBOL
1A0–1A7
2A0–2A7
NAME AND FUNCTION
Data inputs
1A0
1A1
1A2
1A3
1A4
1A5
1A6
1A7
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
1Y0–1Y7
2Y0–2Y7
1OE0, 1OE1,
2OE0, 2OE1
GND
V
CC
Data outputs
Output enables
Ground (0V)
Positive supply voltage
11 1Y6
12 1Y7
SA00069
1998 Feb 13
2
853-1857 18958
Philips Semiconductors
Product specification
2.5V/3.3V 16-bit buffer/driver (3-State)
74ALVT16541
LOGIC SYMBOL (IEEE/IEC)
1
48
24
25
&
EN2
&
EN1
PIN CONFIGURATION
1OE0
1Y0
1Y1
GND
1Y2
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
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
1OE1
1A0
1A1
GND
1A2
1A3
V
CC
1A4
1A5
GND
1A6
1A7
2A0
2A1
GND
2A2
2A3
V
CC
2A4
2A5
GND
2A6
2A7
2OE1
47
46
44
43
41
40
38
37
36
35
33
32
30
29
27
26
2
∇
2
3
5
6
1Y3
V
CC
1Y4
1Y5
8
GND
9
1Y6
11
1Y7
12
2Y0
2
∇
13
2Y1
14
GND
16
2Y2
17
2Y3
19
20
22
23
V
CC
2Y4
2Y5
GND
SW00149
2Y6
2Y7
2OE0
SW00150
FUNCTION TABLE
INPUTS
nOE0
L
L
X
H
nOE1
L
L
H
X
nAx
L
H
X
X
OUTPUTS
nYx
L
H
Z
Z
H = High voltage level
L = Low voltage level
X = Don’t care
Z = High Impedance “off ” state
1998 Feb 13
3
Philips Semiconductors
Product specification
2.5V/3.3V 16-bit buffer/driver (3-State)
74ALVT16541
ABSOLUTE MAXIMUM RATINGS
1, 2
SYMBOL
V
CC
I
IK
V
I
I
OK
V
OUT
I
O
OUT
T
stg
PARAMETER
DC supply voltage
DC input diode current
DC input voltage
3
DC output diode current
DC output voltage
3
DC output current
Output in High state
Storage temperature range
–64
–65 to +150
°C
V
O
< 0
Output in Off or High state
Output in Low state
V
I
< 0
CONDITIONS
RATING
–0.5 to +4.6
–50
–0.5 to +7.0
–50
–0.5 to +7.0
128
mA
UNIT
V
mA
V
mA
V
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 negative voltage ratings may be exceeded if the input and output clamp current ratings are observed.
RECOMMENDED OPERATING CONDITIONS
SYMBOL
V
CC
V
I
V
IH
V
IL
I
OH
I
OL
∆t/∆v
T
amb
DC supply voltage
Input voltage
High-level input voltage
Input voltage
High-level output current
Low-level output current
Low-level output current; current duty cycle
≤
50%; f
≥
1kHz
Input transition rise or fall rate; Outputs enabled
Operating free-air temperature range
–40
PARAMETER
2.5V RANGE LIMITS
MIN
2.3
0
1.7
0.7
–8
8
24
10
+85
–40
MAX
2.7
5.5
3.3V RANGE LIMITS
MIN
3.0
0
2.0
0.8
–32
32
64
10
+85
MAX
3.6
5.5
UNIT
V
V
V
V
mA
mA
ns/V
°C
1998 Feb 13
4
Philips Semiconductors
Product specification
2.5V/3.3V 16-bit buffer/driver (3-State)
74ALVT16541
DC ELECTRICAL CHARACTERISTICS (3.3V
"0.3V
RANGE)
LIMITS
SYMBOL
V
IK
V
OH
PARAMETER
Input clamp voltage
High-level out ut voltage
output
TEST CONDITIONS
V
CC
= 3.0V; I
IK
= –18mA
V
CC
= 3.0 to 3.6V; I
OH
= –100µA
V
CC
= 3.0V; I
OH
= –32mA
V
CC
= 3.0V; I
OL
= 100µA
V
OL
Low–level output voltage
V
CC
= 3.0V; I
OL
= 16mA
V
CC
= 3.0V; I
OL
= 32mA
V
CC
= 3.0V; I
OL
= 64mA
V
CC
= 3.6V; V
I
= V
CC
or GND
I
I
In ut
Input leakage current
V
CC
= 0 or 3.6V; V
I
= 5.5V
V
CC
= 3.6V; V
I
= V
CC
V
CC
= 3.6V; V
I
= 0V
I
OFF
I
HOLD
Off current
Bus Hold current
Data inputs
6
Current into an output in the
High state when V
O
> V
CC
Power up/down 3-State output
current
3
3-State output High current
3-State output Low current
Quiescent supply current
Additional supply current per
input pin
2
V
CC
= 0V; V
I
or V
O
= 0 to 4.5V
V
CC
= 3V; V
I
= 0.8V
V
CC
= 3V; V
I
= 2.0V
V
CC
= 0V to 3.6V; V
CC
= 3.6V
V
O
= 5.5V; V
CC
= 3.0V
V
CC
≤
1.2V; V
O
= 0.5V to V
CC
; V
I
= GND or V
CC
;
OE/OE = Don’t care
V
CC
= 3.6V; V
O
= 3.0V; V
I
= V
IL
or V
IH
V
CC
= 3.6V; V
O
= 0.5V; V
I
= V
IL
or V
IH
V
CC
= 3.6V; Outputs High, V
I
= GND or V
CC,
I
O =
0
V
CC
= 3.6V; Outputs Low, V
I
= GND or V
CC,
I
O =
0
V
CC
= 3.6V; Outputs Disabled; V
I
= GND or V
CC,
I
O =
0
5
V
CC
= 3V to 3.6V; One input at V
CC
–0.6V,
Other inputs at V
CC
or GND
75
–75
±500
50
40
0.5
0.5
0.07
3.2
0.07
0.04
125
±100
5
–5
0.1
5
0.1
0.4
mA
mA
µA
µA
µA
µA
Data
pins
4
ins
Control pins
V
CC
–0.2
2.0
Temp = -40°C to +85°C
MIN
TYP
1
–0.85
V
CC
2.3
0.07
0.25
0.3
0.4
0.1
0.1
0.5
0.1
0.1
130
–140
µA
0.2
0.4
0.5
0.55
±1
10
1
-5
±100
µA
µA
V
MAX
–1.2
V
V
UNIT
I
EX
I
PU/PD
I
OZH
I
OZL
I
CCH
I
CCL
I
CCZ
∆I
CC
NOTES:
1. All typical values are at V
CC
= 3.3V and T
amb
= 25°C.
2. This is the increase in supply current for each input at the specified voltage level other than V
CC
or GND
3. This parameter is valid for any V
CC
between 0V and 1.2V with a transition time of up to 10msec. From V
CC
= 1.2V to V
CC
= 3.3V
±
0.3V a
transition time of 100µsec is permitted. This parameter is valid for T
amb
= 25°C only.
4. Unused pins at V
CC
or GND.
5. I
CCZ
is measured with outputs pulled up to V
CC
or pulled down to ground.
6. This is the bus hold overdrive current required to force the input to the opposite logic state.
AC CHARACTERISTICS (3.3V
"0.3V
RANGE)
GND = 0V; t
R
= t
F
= 2.5ns; C
L
= 50pF; R
L
= 500Ω; T
amb
= –40°C to +85°C.
LIMITS
SYMBOL
PARAMETER
WAVEFORM
MIN
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
Propagation delay
nAx to nYx
Output enable time
to High and Low level
Output disable time
from High and Low Level
1
2
2
0.5
0.5
1.0
1.0
1.5
1.5
V
CC
= 3.3V
"0.3V
TYP
1
1.4
1.4
3.0
2.3
3.3
2.8
MAX
2.3
2.3
4.8
3.7
4.7
3.9
ns
ns
ns
UNIT
NOTE:
1. All typical values are at V
CC
= 3.3V and T
amb
= 25°C.
1998 Feb 13
5
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