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74LVT640 Datasheet(PDF) 2 Page - NXP Semiconductors

Part No. 74LVT640
Description  3.3V Octal transceiver with direction pin; inverting 3-State
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

74LVT640 Datasheet(HTML) 2 Page - NXP Semiconductors

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Philips Semiconductors
Product specification
74LVT640
3.3V Octal transceiver with direction pin; inverting
(3-State)
2
1998 Feb 19
853-1881 18988
FEATURES
Octal 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
DESCRIPTION
The LVT640 is a high-performance BiCMOS product designed for
VCC operation at 3.3V.
This device is an octal transceiver featuring 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
Tamb = 25°C; GND = 0V
TYPICAL
UNIT
tPLH
tPHL
Propagation delay
An to Bn or Bn to An
CL = 50pF;
VCC = 3.3V
2.3
2.4
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
7
pF
ICCZ
Total supply current
Outputs disabled; VCC = 3.6V
0.13
mA
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
OUTSIDE NORTH AMERICA
NORTH AMERICA
PKG. DWG. #
20-Pin Plastic SO
–40
°C to +85°C
74LVT640 D
74LVT640 D
SOT163-1
20-Pin Plastic SSOP
–40
°C to +85°C
74LVT640 DB
74LVT640 DB
SOT339-1
20-Pin Plastic TSSOP
–40
°C to +85°C
74LVT640 PW
74LVT640PW 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
PIN DESCRIPTION
PIN NUMBER
SYMBOL
NAME AND FUNCTION
1
DIR
Direction control input
2, 3, 4, 5, 6, 7, 8, 9
A0 – A7
Data inputs/outputs (A side)
18, 17, 16, 15, 14,
13, 12, 11
B0 – B7
Data inputs/outputs (B side)
19
OE
Output enable input
(active–Low)
10
GND
Ground (0V)
20
VCC
Positive supply voltage


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