Philips 74lvt16245b DATASHEETS
INTEGRATED CIRCUITS
74LVT16245B
3.3V ABT 16-bit transceiver (3-State)
Pproduct specification
Supersedes data of 1994 May 23
IC23 Data Handbook
1998 Feb 19
Philips Semiconductors Product specification
74L VT16245B3.3V 16-bit transceiver (3-State)
FEA TURES
•16-bit bidirectional 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 Std 17
•ESD protection exceeds 2000V per MIL STD 883 Method 3015
and 200V per Machine Model
QUICK REFERENCE DATA
SYMBOL PARAMETER
t
PLH
t
PHL
C
C
I
CCZ
IN
I/O
Propagation delay
nAx to nBx or nBx to nAx
Input capacitance DIR, OE VI = 0V or 3.0V 3 pF
I/O pin capacitance V
Total supply current Outputs disabled; VCC = 3.6V 70 µA
DESCRIPTION
The 74LVT16245B is a high-performance BiCMOS product
designed for V
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
easy cascading and a Direction (DIR) input for direction control.
CONDITIONS
T
amb
CL = 50pF;
VCC = 3.3V
= 0V or 3.0V 9 pF
I/O
operation at 3.3V .
CC
= 25°C
TYPICAL UNIT
1.9 ns
) input for
ORDERING INFORMATION
PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA DWG NUMBER
48-Pin Plastic SSOP Type III –40°C to +85°C 74LVT16245B DL VT16245B DL SOT370-1
48-Pin Plastic TSSOP Type II –40°C to +85°C 74LVT16245B DGG VT16245B DGG SOT362-1
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
2, 3, 5, 6, 8, 9,
11, 12, 13, 14,
16, 17, 19, 20,
22, 23
25, 48 nOE
4, 10, 15, 21, 28,
34, 39, 45
7, 18, 31, 42 V
nA0 – nA7 Data inputs/outputs (A side)
nB0 – nB7 Data inputs/outputs (B side)
Output enable input
(active-Low)
GND Ground (0V)
CC
Positive supply voltage
LOGIC SYMBOL
1
1DIR
47
1A0
46
1A1
44
1A2
43
1A3
41
1A4
40
1A5
38
1A6
37 12
1A7
24
2DIR
48
1OE
2
1B0
3
1B1
5
1B2
6
1B3
8
1B4
9
1B5
11
1B6
1B7
36
2A0
35
2A1
33
2A2
32
2A3
30
2A4
29
2A5
27
2A6
26 23
2A7
25
2OE
13
2B0
14
2B1
16
2B2
17
2B3
19
2B4
20
2B5
22
2B6
2B7
SA00021
1998 Feb 19 853-1753 18990
2
Philips Semiconductors Product specification
74LVT16245B3.3V 16-bit transceiver (3-State)
PIN CONFIGURA TION
1
1DIR
2
1B0
3
1B1
4
GND
5
1B2
6
1B3
7
V
CC
8
1B4
9
1B5
GND
10
11
1B6
12
1B7
13
2B0
14
2B1
15
GND
16
2B2
17
2B3
18
V
CC
19
2B4
20
2B5
GND
21
22
2B6
23
2B7
2DIR
24
LOGIC SYMBOL (IEEE/IEC)
48
1OE
47
1A0
46
1A1
45
GND
44
1A2
43
1A3
42
V
CC
41
1A4
40
1A5
39
GND
38
1A6
37
1A7
36
2A0
35
2A1
34
GND
33
2A2
32
2A3
31
V
CC
30
2A4
29
2A5
28
GND
27
2A6
26
2A7
25
2OE
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)
G3
3 EN1 (BA)
3 EN2 (AB)
∇ 1
2 ∇
∇ 1
2 ∇
2
1B0
3
1B1
1B2
1B3
1B4
1B5
1B6
1B7
13
2B0
14
2B1
2B2
2B3
2B4
2B5
2B6
2B7
SV00066
1998 Feb 19
SW00061
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
3
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