Philips Semiconductors Product specification
74LVT162244B
3.3V 16-bit buffer/driver with 30Ω
termination resistors (3-State)
2
1998 Oct 07 853-1779 20144
FEATURES
• 16-bit bus interface
• 3-State buffers
• Output capability: +12mA/-12mA
• 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
• Outputs include series resistance of 30Ω making external
terminating resistors unnecessary
• 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
• Same part as 74LVT16244B-1
DESCRIPTION
The 74LVT162244B is a high-performance BiCMOS product
designed for V
CC
operation at 3.3V.
The 74LVT162244B is designed with 30Ω series resistance in both
the High and Low states of the output. This design reduces line
noise in applications such as memory address drivers, clock drivers,
and bus receivers/transmitters.
This device is a 16-bit buffer and line driver featuring non-inverting
3-State bus outputs. The device can be used as four 4-bit buffers,
two 8-bit buffers, or one 16-bit buffer.
The 74LVT162244B is the same as the 74LVT16244B-1. The part
number has been changed to reflect industry standards.
QUICK REFERENCE DATA
SYMBOL PARAMETER
CONDITIONS
T
amb
= 25°C
TYPICAL UNIT
t
PLH
t
PHL
Propagation delay
nAx to nYx
C
L
= 50pF;
V
CC
= 3.3V
2.8 ns
C
IN
Input capacitance nOE V
I
= 0V or 3.0V 3 pF
C
OUT
Output capacitance Outputs disabled; V
O
= 0V or 3.0V 9 pF
I
CCZ
Total supply current Outputs disabled; V
CC
= 3.6V 70 µA
ORDERING INFORMATION
PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA DWG NUMBER
48-Pin Plastic SSOP Type III –40°C to +85°C 74LVT162244B DL VT162244B DL SOT370-1
48-Pin Plastic TSSOP Type II –40°C to +85°C 74LVT162244B DGG VT162244B DGG SOT362-1
LOGIC SYMBOL
1OE
1
1A0
47
1A1
46
1A2
44
1A3
43
2OE
48
2A0
41
2A1
2
40
2A2
38
3
2A3
37
5
6
1Y0
1Y1
1Y2
1Y3
2Y0
2Y1
2Y2
2Y3
8
9
11
12
3OE
25
3A0
36
3A1
35
3A2
33
3A3
32
4OE
24
4A0
30
4A1
13
29
4A2
27
14
4A3
26
16
17
3Y0
3Y1
3Y2
3Y3
4Y0
4Y1
4Y2
4Y3
19
20
22
23
SA00014
PIN DESCRIPTION
PIN NUMBER SYMBOL NAME AND FUNCTION
47, 46, 44, 43
41, 40, 38, 37
36, 35, 33, 32
30, 29, 27, 26
1A0 - 1A3,
2A0 - 2A3,
3A0 - 3A3,
4A0 - 4A3
Data inputs
2, 3, 5, 6
8, 9, 11, 12
13, 14, 16, 17
19, 20, 22, 23
1Y0 - 1Y3,
2Y0 - 2Y3,
3Y0 - 3Y3,
4Y0 - 4Y3
Data outputs
1, 48
25, 24
1OE, 2OE, 3OE,
4OE
Output enables
4, 10, 15, 21
28, 34, 39, 45
GND Ground (0V)
7, 18, 31, 42 V
CC
Positive supply voltage
