Philips Semiconductors Low Voltage Products
Preliminary specification
3.3V ABT 16-bit buffer/driver (3-State)
74LVT16541A
FEATURES
•
•
•
•
•
16-bit universal bus interface
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
•
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 JC40.2 Std 17
•
ESD protection exceeds 2000V per MIL
STD 883 Method 3015 and 200V per
Machine Model
DESCRIPTION
The LVT16541A is a high-performance
BiCMOS product designed for V
CC
operation
at 3.3V.
This device can be used as two octal buffers
or one 16-bit buffer. The device is ideal for
driving bus lines.
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
CONDITIONS
T
amb
= 25°C; GND = 0V
C
L
= 50pF;
V
CC
= 3.3V
V
I
= 0V or 3.0V
Outputs disabled; V
O
= 0V or 3.0V
Outputs disabled; V
CC
= 3.6V
4
10
100
TYPICAL
UNIT
ns
pF
pF
µA
ORDERING INFORMATION
PACKAGES
48-Pin Plastic Shrink Small Outline (SSOP) Type III
48-Pin Plastic Thin Shrink Small Outline (TSSOP) Type II
TEMPERATURE RANGE
–40°C to +85°C
–40°C to +85°C
ORDER CODE
74LVT16541ADL
74LVT16541ADGG
DRAWING NUMBER
SOT370-1
SOT362-1
LOGIC SYMBOL
1OE0
1OE1
1
48
2OE0
1OE1
2
3
5
6
8
9
11
12
24
25
LOGIC SYMBOL (IEEE/IEC)
1
1A0
1A1
1A2
1A3
1A4
1A5
1A6
1A7
47
46
44
43
41
40
38
37
1Y0
1Y1
1Y2
1Y3
1Y4
1Y5
1Y6
1Y7
2A0
2A1
2A2
2A3
2A4
2A5
2A6
2A7
36
35
33
32
30
29
27
26
13
14
16
17
19
20
22
23
2Y0
2Y1
47
2Y2
2Y3
43
2Y4
2Y5
38
2Y6
2Y7
37
11
12
41
40
6
8
9
46
44
2
∇
2
3
5
48
&
EN1
24
25
&
EN2
36
35
33
32
30
29
27
26
2
∇
13
14
16
17
19
20
22
23
July 1994
1
Philips Semiconductors Low Voltage Products
Preliminary specification
3.3V ABT 16-bit buffer/driver (3-State)
74LVT16541A
PIN CONFIGURATION
1OE0
1A0
1A1
GND
1A2
1A3
V
CC
1A4
1A5
GND
1A6
1A7
2A0
2A1
GND
2A2
2A3
V
CC
2A4
2A5
GND
2A6
2A7
2OE0
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
1Y0
1Y1
GND
1Y2
1Y3
V
CC
1Y4
1Y5
GND
1Y6
1Y7
2Y0
2Y1
GND
2Y2
2Y3
V
CC
2Y4
2Y5
GND
2Y6
2Y7
2OE1
PIN DESCRIPTION
PIN NUMBER
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
SYMBOL
1A0–1A7
2A0–2A7
1Y0–1Y7
2Y0–2Y7
1OE0, 1OE1,
2OE0, 2OE1
GND
V
CC
Data inputs
Data outputs
Output enables
Ground (0V)
Positive supply voltage
NAME AND FUNCTION
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
July 1994
2
Philips Semiconductors Low Voltage Products
Preliminary specification
3.3V ABT 16-bit buffer/driver (3-State)
74LVT16541A
ABSOLUTE MAXIMUM RATINGS
1,2
SYMBOL
V
CC
I
IK
V
I
I
OK
V
OUT
I
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
PARAMETER
MIN
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
2.7
0
2.0
0.8
–32
32
mA
64
10
+85
ns/V
°C
LIMITS
MAX
3.6
5.5
V
V
V
V
mA
UNIT
July 1994
3
Philips Semiconductors Low Voltage Products
Preliminary specification
3.3V ABT 16-bit buffer/driver (3-State)
74LVT16541A
DC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
Temp = -40°C to +85°C
MIN
V
IK
V
OH
Input clamp voltage
V
CC
= 2.7V; I
IK
= –18mA
V
CC
= 2.7 to 3.6V; I
OH
= –100µA
High-level output voltage
V
CC
= 2.7V; I
OH
= –8mA
V
CC
= 3.0V; I
OH
= –32mA
V
CC
= 2.7V; I
OL
= 100µA
V
CC
= 2.7V; I
OL
= 24mA
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
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
= 0
I
OFF
I
HOLD
I
EX
I
PU/PD
I
OZH
I
OZL
I
CCH
I
CCL
I
CCZ
∆I
CC
Additional supply current per
input pin
2
Quiescent supply current
Output off current
Bus Hold current A inputs
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
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
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
V
CC
= 3V to 3.6V; One input at V
CC
-0.6V,
Other inputs at V
CC
or GND
0.13
3.5
0.13
75
–75
125
±100
5
–5
0.12
5
0.12
0.2
mA
mA
Data pins
4
Control pins
V
CC
-0.2
2.4
2.0
0.2
0.5
0.4
0.5
0.55
±1
10
1
-5
±100
µA
µA
µA
µA
µA
µA
µA
µA
V
V
TYP
1
MAX
–1.2
V
UNIT
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.
AC CHARACTERISTICS
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
V
CC
= 3.3V
±0.3V
TYP
1
MAX
V
CC
= 2.7V
MAX
ns
ns
ns
UNIT
NOTE:
1. All typical values are at V
CC
= 3.3V and T
amb
= 25°C.
July 1994
4
Philips Semiconductors Low Voltage Products
Preliminary specification
3.3V ABT 16-bit buffer/driver (3-State)
74LVT16541A
AC WAVEFORMS
V
M
= 1.5V, V
IN
= GND to 2.7V
nOE INPUT
1.5V
2.7V
nAx
INPUT
1.5V
1.5V
0V
t
PLH
t
PHL
V
OH
nYx
OUTPUT
1.5V
1.5V
V
OL
nYx
OUTPUT
1.5V
nYx
OUTPUT
t
PZH
1.5V
V
OL
+ 0.3V
t
PHZ
V
OL
V
OH
V
OH
– 0.3V
t
PZL
t
PLZ
1.5V
0V
3.0V
2.7V
0V
Waveform 1. Waveforms Showing the Input to Output
Propagation Delays
Waveform 2. Waveforms Showing the 3-State Output
Enable and Disable Times
TEST CIRCUIT AND WAVEFORMS
V
CC
6.0V
90%
t
W
V
M
10%
t
THL
(t
F
)
10%
V
M
90%
AMP (V)
Open
V
IN
PULSE
GENERATOR
R
T
D.U.T
C
L
R
L
V
OUT
R
L
GND
NEGATIVE
PULSE
0V
t
TLH
(t
R
)
t
THL
(t
F
)
90%
V
M
10%
t
W
0V
AMP (V)
t
TLH
(t
R
)
90%
POSITIVE
PULSE
10%
Test Circuit for 3-State Outputs
V
M
SWITCH POSITION
TEST
t
PLZ/
t
PZL
t
PLH/
t
PHL
t
PHZ
/t
PZH
SWITCH
6V
Open
GND
V
M
= 1.5V
Input Pulse Definition
DEFINITIONS
R
L
= Load resistor; see AC CHARACTERISTICS for value.
C
L
= Load capacitance includes jig and probe capacitance:
See AC CHARACTERISTICS for value.
R
T
= Termination resistance should be equal to Z
OUT
of
pulse generators.
INPUT PULSE REQUIREMENTS
FAMILY
Amplitude
74LVT16
2.7V
Rep. Rate
≤10MHz
t
W
t
R
t
F
500ns
≤2.5ns ≤2.5ns
July 1994
5
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