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74LVT2245 Datasheet(PDF) 2 Page - NXP Semiconductors

Part No. 74LVT2245
Description  3.3V Octal transceiver with 30ohm termination resistors 3-State
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

74LVT2245 Datasheet(HTML) 2 Page - NXP Semiconductors

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Philips Semiconductors
Product specification
74LVT2245
3.3V Octal transceiver with 30
Ω
termination resistors (3-State)
2
1998 Feb 19
853-1828 18985
FEATURES
• 30Ω output termination resistors
• Octal 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
• 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
DESCRIPTION
The LVT2245 is a high-performance BiCMOS product designed for
VCC operation at 3.3V.
This device is an octal 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.
The 74LVT2245 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.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
Tamb = 25°C; GND = 0V
TYPICAL
UNIT
tPLH
tPHL
Propagation delay
An to Bn or Bn to An
CL = 50pF;
VCC = 3.3V
3.2
3.1
ns
CIN
Input capacitance
DIR, OE
VI = 0V or 3.0V
4
pF
CI/O
I/O pin capacitance
Outputs disabled; VI/O = 0V or 3.0V
10
pF
ICCZ
Total supply current
Outputs disabled; VCC = 3.6V
0.13
mA
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
OUTSIDE NORTH AMERICA
NORTH AMERICA
DWG NUMBER
20-Pin Plastic SO
–40
°C to +85°C
74LVT2245 D
74LVT2245 D
SOT163-1
20-Pin Plastic SSOP
–40
°C to +85°C
74LVT2245 DB
74LVT2245 DB
SOT339-1
20-Pin Plastic TSSOP
–40
°C to +85°C
74LVT2245 PW
7LVT2245PW DH
SOT360-1
PIN CONFIGURATION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
DIR
A0
A1
A2
A3
A4
A5
A6
A7
GND
VCC
OE
B0
B1
B2
B3
B4
B5
B6
B7
SV00014
LOGIC SYMBOL
A0
A1
A2
A3
A4
A5
A6
A7
B0
B1
B2
B3
B4
B5
B6
B7
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
OE
19
DIR
1
SV00016


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