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74LVT162245B Datasheet(PDF) 2 Page - NXP Semiconductors

Part No. 74LVT162245B
Description  3.3V LVT 16-bit transceiver with 30ohm termination resistors 3-State
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

74LVT162245B Datasheet(HTML) 2 Page - NXP Semiconductors

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Philips Semiconductors
Product specification
74LVT162245B
3.3V 16-bit transceiver with 30
termination resistors (3-State)
2
1998 Feb 19
853-1766 18989
FEATURES
16-bit bidirectional 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
termination 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 74LVT16245B-1
DESCRIPTION
The 74LVT162245B is a high-performance BiCMOS product
designed for VCC operation at 3.3V.
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 (nOE) input for
easy cascading and a Direction (DIR) input for direction control.
The 74LVT162245B is designed with 30
Ω 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 transceivers/transmitters.
The 74LVT162245B is the same as the 74LVT16245B-1. The part
number has been changed to reflect industry standards.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
Tamb = 25°C
TYPICAL
UNIT
tPLH
tPHL
Propagation delay
nAx to nBx or nBx to nAx
CL = 50pF;
VCC = 3.3V
2.5
ns
CIN
Input capacitance DIR, OE
VI = 0V or 3.0V
3
pF
CI/O
I/O pin capacitance
VI/O = 0V or 3.0V
9
pF
ICCZ
Total supply current
Outputs disabled; VCC = 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
74LVT162245B DL
VT162245B DL
SOT370-1
48-Pin Plastic TSSOP Type II
–40
°C to +85°C
74LVT162245B DGG
VT162245B 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
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
VCC
Positive supply voltage
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


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