Philips
Semiconductors
74ALVT16245
2.5V/3.3V ALVT 16-bit transceiver
(3-State)
Product specification
Supersedes data of 1995 Nov 01
IC23 Data Handbook
1998 Feb 13
INTEGRATED CIRCUITS
Philips Semiconductors
Product specification
74ALVT16245
2.5V/3.3V 16-bit transceiver (3-State)
2
1998 Feb 13
853-1817 18959
FEATURES
16-bit bidirectional bus interface
5V I/O Compatible
3-State buffers
Output capability: +64mA/32mA
TTL input and output switching levels
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 Std 17
ESD protection exceeds 2000V per MIL STD 883 Method 3015
and 400V per Machine Model
DESCRIPTION
The 74ALVT16245 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 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 an Output Enable (OE) input for
easy cascading and a Direction (DIR) input for direction control.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
TYPICAL
UNIT
SYMBOL
PARAMETER
T
amb
= 25
C
2.5V
3.3V
UNIT
t
PLH
t
PHL
Propagation delay
nAx to nBx or nBx to nAx
C
L
= 50pF
1.7
1.9
1.5
1.5
ns
C
IN
Input capacitance DIR, OE
V
I
= 0V or V
CC
3
3
pF
C
I/O
I/O pin capacitance
V
I/O
= 0V or V
CC
9
9
pF
I
CCZ
Total supply current
Outputs disabled
40
70
A
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
OUTSIDE NORTH AMERICA
NORTH AMERICA
DWG NUMBER
48-Pin Plastic SSOP Type III
40
C to +85
C
74ALVT16245 DL
AV16245 DL
SOT370-1
48-Pin Plastic TSSOP Type II
40
C to +85
C
74ALVT16245 DGG
AV16245 DGG
SOT362-1
LOGIC SYMBOL
2DIR
24
36
35
33
32
30
29
27
26
23
22
20
19
17
16
14
13
2OE
2A0
2A1
2A2
2A3
2A4
2A5
2A6
2A7
2B0
2B1
2B2
2B3
2B4
2B5
2B6
2B7
25
1DIR
1
47
46
44
43
41
40
38
37
12
11
9
8
6
5
3
2
1OE
1A0
1A1
1A2
1A3
1A4
1A5
1A6
1A7
1B0
1B1
1B2
1B3
1B4
1B5
1B6
1B7
48
SA00021
LOGIC SYMBOL (IEEE/IEC)
1
48
47
46
G3
1
3 EN1 (BA)
3 EN2 (AB)
2
2
3
44
5
43
6
41
8
40
9
38
11
37
12
1
25
36
35
G3
24
3 EN1 (BA)
3 EN2 (AB)
2
13
14
33
16
32
17
30
19
29
20
27
22
26
23
SW00022
Philips Semiconductors
Product specification
74ALVT16245
2.5V/3.3V 16-bit transceiver (3-State)
1998 Feb 13
3
PIN CONFIGURATION
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
1DIR
1B0
1B1
GND
1B2
1B3
1B4
1B5
GND
1B6
1B7
2B0
2B1
GND
2B3
VCC
2B4
VCC
2B2
2B5
GND
2B7
2DIR
2B6
1OE
1A0
1A1
GND
1A2
1A3
1A4
1A5
GND
1A6
1A7
2A0
2A1
GND
2A3
VCC
2A4
VCC
2A2
2A5
GND
2A7
2OE
2A6
SA00020
PIN DESCRIPTION
PIN NUMBER
SYMBOL
NAME AND FUNCTION
1, 24
nDIR
Direction control input
47, 46, 44, 43,
41, 40, 38, 37,
36, 35, 33, 32,
30, 29, 27, 26
nA0 nA7
Data inputs/outputs (A side)
2, 3, 5, 6, 8, 9,
11, 12, 13, 14,
16, 17, 19, 20,
22, 23
nB0 nB7
Data inputs/outputs (B side)
25, 48
nOE
Output enable input (active-Low)
4, 10, 15, 21,
28, 34, 39, 45
GND
Ground (0V)
7, 18, 31, 42
V
CC
Positive supply voltage
FUNCTION TABLE
INPUTS
INPUTS/OUTPUTS
nOE
nDIR
nAx
nBx
L
L
nAx = nBx
Inputs
L
H
Inputs
nBx = nAx
H
X
Z
Z
H = High voltage level
L
= Low voltage level
X = Don't care
Z = High Impedance "off " state
ABSOLUTE MAXIMUM RATINGS
1, 2
SYMBOL
PARAMETER
CONDITIONS
RATING
UNIT
V
CC
DC supply voltage
0.5 to +4.6
V
I
IK
DC input diode current
V
I
< 0
50
mA
V
I
DC input voltage
3
0.5 to +7.0
V
I
OK
DC output diode current
V
O
< 0
50
mA
V
OUT
DC output voltage
3
Output in Off or High state
0.5 to +7.0
V
I
O
DC output current
Output in Low state
128
mA
I
OUT
DC output current
Output in High state
64
mA
T
stg
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 negative voltage ratings may be exceeded if the input and output clamp current ratings are observed.
Philips Semiconductors
Product specification
74ALVT16245
2.5V/3.3V 16-bit transceiver (3-State)
1998 Feb 13
4
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
2.5V RANGE LIMITS
3.3V RANGE LIMITS
UNIT
SYMBOL
PARAMETER
MIN
MAX
MIN
MAX
UNIT
V
CC
DC supply voltage
2.3
2.7
3.0
3.6
V
V
I
Input voltage
0
5.5
0
5.5
V
V
IH
High-level input voltage
1.7
2.0
V
V
IL
Input voltage
0.7
0.8
V
I
OH
High-level output current
8
32
mA
I
OL
Low-level output current
8
32
mA
I
OL
Low-level output current; current duty cycle
50%; f
1kHz
24
64
mA
t/
v
Input transition rise or fall rate; Outputs enabled
10
10
ns/V
T
amb
Operating free-air temperature range
40
+85
40
+85
C
DC ELECTRICAL CHARACTERISTICS (3.3V
"
0.3V RANGE)
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
Temp = -40
C to +85
C
UNIT
MIN
TYP
1
MAX
V
IK
Input clamp voltage
V
CC
= 3.0V; I
IK
= 18mA
0.85
1.2
V
V
OH
High-level output voltage
V
CC
= 3.0 to 3.6V; I
OH
= 100
A
V
CC
0.2
V
CC
V
V
OH
High-level out ut voltage
V
CC
= 3.0V; I
OH
= 32mA
2.0
2.3
V
V
CC
= 3.0V; I
OL
= 100
A
0.07
0.2
V
OL
Lowlevel output voltage
V
CC
= 3.0V; I
OL
= 16mA
0.25
0.4
V
V
OL
Lowlevel out ut voltage
V
CC
= 3.0V; I
OL
= 32mA
0.3
0.5
V
V
CC
= 3.0V; I
OL
= 64mA
0.4
0.55
V
CC
= 3.6V; V
I
= V
CC
or GND
Control pins
0.1
1
V
CC
= 0 or 3.6V; V
I
= 5.5V
0.1
10
I
I
Input leakage current
V
CC
= 3.6V; V
I
= 5.5V
4
0.1
20
A
V
CC
= 3 6V; V
I
= V
CC
Data pins
4
0 5
10
V
CC
= 3.6V; V
I
= V
CC
Data ins
4
0.5
10
V
CC
= 3.6V; V
I
= 0
0.1
-5
I
OFF
Off current
V
CC
= 0V; V
I
or V
O
= 0 to 4.5V
0.1
100
A
Bus Hold current
V
CC
= 3V; V
I
= 0.8V
75
130
I
HOLD
Bus Hold current
A or B ports
6
V
CC
= 3V; V
I
= 2.0V
75
140
A
A or B ports
6
V
CC
= 0V to 3.6V; V
CC
= 3.6V
500
I
EX
Current into an output in the
High state when V
O
> V
CC
V
O
= 5.5V; V
CC
= 3.0V
50
125
A
I
PU/PD
Power up/down 3-State output
current
3
V
CC
1.2V; V
O
= 0.5V to V
CC
; V
I
= GND or V
CC
;
OE/OE = Don't care
40
100
A
I
CCH
V
CC
= 3.6V; Outputs High, V
I
= GND or V
CC,
I
O
=
0
0.07
0.1
I
CCL
Quiescent supply current
V
CC
= 3.6V; Outputs Low, V
I
= GND or V
CC,
I
O
= 0
3.2
5
mA
I
CCZ
V
CC
= 3.6V; Outputs Disabled; V
I
= GND or V
CC,
I
O
= 0
5
0.07
0.1
I
CC
Additional supply current per
input pin
2
V
CC
= 3V to 3.6V; One input at V
CC
0.6V,
Other inputs at V
CC
or GND
0.2
0.4
mA
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 100
sec 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.
Philips Semiconductors
Product specification
74ALVT16245
2.5V/3.3V 16-bit transceiver (3-State)
1998 Feb 13
5
AC CHARACTERISTICS (3.3V
"
0.3V RANGE)
GND = 0V; t
R
= t
F
= 2.5ns; C
L
= 50pF; R
L
= 500
; T
amb
= 40
C to +85
C.
LIMITS
SYMBOL
PARAMETER
WAVEFORM
V
CC
= 3.3V
"
0.3V
UNIT
MIN
TYP
1
MAX
t
PLH
t
PHL
Propagation delay
nAx to nBx or nBx to nAx
1
0.5
0.5
1.5
1.5
2.4
2.4
ns
t
PZH
t
PZL
Output enable time
to High and Low level
2
1.0
1.0
2.1
1.7
3.5
2.9
ns
t
PHZ
t
PLZ
Output disable time
from High and Low Level
2
1.5
1.5
3.4
2.8
4.5
3.7
ns
NOTE:
1. All typical values are at V
CC
= 3.3V and T
amb
= 25
C.
DC ELECTRICAL CHARACTERISTICS (2.5V
"
0.2V RANGE)
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
Temp = -40
C to +85
C
UNIT
MIN
TYP
1
MAX
V
IK
Input clamp voltage
V
CC
= 2.3V; I
IK
= 18mA
0.85
1.2
V
V
OH
High-level output voltage
V
CC
= 2.3 to 3.6V; I
OH
= 100
A
V
CC
0.2
V
V
OH
High-level out ut voltage
V
CC
= 2.3V; I
OH
= 8mA
1.8
2.1
V
V
CC
= 2.3V; I
OL
= 100
A
0.07
0.2
V
OL
Low-level output voltage
V
CC
= 2.3V; I
OL
= 24mA
0.3
0.5
V
V
CC
= 2.3V; I
OL
= 8mA
0.4
V
CC
= 2.7V; V
I
= V
CC
or GND
Control pins
0.1
1
V
CC
= 0 or 2.7V; V
I
= 5.5V
0.1
10
I
I
Input leakage current
V
CC
= 2.7V; V
I
= 5.5V
4
0.1
20
A
V
CC
= 2.7V; V
I
= V
CC
Data pins
4
0.1
10
V
CC
= 2.7V; V
I
= 0
0.1
-5
I
OFF
Off current
V
CC
= 0V; V
I
or V
O
= 0 to 4.5V
0.1
100
A
I
HOLD
Bus Hold current
V
CC
= 2.3V; V
I
= 0.7V
90
A
I
HOLD
Data inputs
6
V
CC
= 2.3V; V
I
= 1.7V
10
A
I
EX
Current into an output in the
High state when V
O
> V
CC
V
O
= 5.5V; V
CC
= 2.3V
50
125
A
I
PU/PD
Power up/down 3-State output
current
3
V
CC
1.2V; V
O
= 0.5V to V
CC
; V
I
= GND or V
CC
;
OE/OE = Don't care
40
100
A
I
CCH
V
CC
= 2.7V; Outputs High, V
I
= GND or V
CC,
I
O
=
0
0.04
0.1
I
CCL
Quiescent supply current
V
CC
= 2.7V; Outputs Low, V
I
= GND or V
CC,
I
O
=
0
2.3
45
mA
I
CCZ
V
CC
= 2.7V; Outputs Disabled; V
I
= GND or V
CC,
I
O
=
0
5
0.04
0.1
I
CC
Additional supply current per
input pin
2
V
CC
= 2.3V to 2.7V; One input at V
CC
0.6V,
Other inputs at V
CC
or GND
0.1
0.4
mA
NOTES:
1. All typical values are at V
CC
= 2.5V 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
= 2.5V
0.3V a
transition time of 100
sec 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. Not guaranteed.
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