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74ABT2244 Datasheet(PDF) 2 Page - NXP Semiconductors

Part No. 74ABT2244
Description  Octal buffer/line driver with 30ohm series termination resistors 3-State
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

74ABT2244 Datasheet(HTML) 2 Page - NXP Semiconductors

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Philips Semiconductors
Product specification
74ABT2244
Octal buffer/line driver with 30
Ω series
termination resistors (3-State)
2
1998 Jan 16
853-1627 18867
FEATURES
Octal bus interface
3-State buffers
Live insertion/extraction permitted
Outputs include series resistance of 30Ω, making external
termination resistors unnecessary
Output capability: +5mA/–32mA
Latch-up protection exceeds 500mA per Jedec Std 17
ESD protection exceeds 2000 V per MIL STD 883 Method 3015
and 200 V per Machine Model
Power-up 3-State
Same part as 74ABT244-1
Inputs are disabled during 3-State mode
DESCRIPTION
The 74ABT2244 high-performance BiCMOS device combines low
static and dynamic power dissipation with high speed.
The 74ABT2244 device is an octal buffer that is ideal for driving bus
lines. The device features two Output Enables (1OE, 2OE), each
controlling four of the 3-State outputs.
The 74ABT2244 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
receivers/transmitters.
The 74ABT2244 is the same as the 74ABT244-1. The part number
has been changed to reflect industry standards.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
Tamb = 25°C; GND = 0V
TYPICAL
UNIT
tPLH
tPHL
Propagation delay
An to Yn
CL = 50pF; VCC = 5V
2.8
3.9
ns
CIN
Input capacitance
VI = 0V or VCC
4
pF
COUT
Output capacitance
Outputs disabled; VO = 0V or VCC
7
pF
ICCZ
Total supply current
Outputs disabled; VCC = 5.5V
50
µA
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
OUTSIDE NORTH AMERICA
NORTH AMERICA
DWG NUMBER
20-Pin Plastic DIP
–40
°C to +85°C
74ABT2244 N
74ABT2244 N
SOT146-1
20-Pin plastic SO
–40
°C to +85°C
74ABT2244 D
74ABT2244 D
SOT163-1
20-Pin Plastic SSOP Type II
–40
°C to +85°C
74ABT2244 DB
74ABT2244 DB
SOT339-1
20-Pin Plastic TSSOP Type I
–40
°C to +85°C
74ABT2244 PW
7ABT2244PW 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
1OE
1A0
2Y0
1A1
2Y1
1A2
2Y2
1A3
2Y3
1Y3
GND
2A2
1Y2
2A1
1Y1
2A0
1Y0
2OE
VCC
2A3
SA00148
PIN DESCRIPTION
PIN NUMBER
SYMBOL
NAME AND FUNCTION
2, 4, 6, 8
1A0 – 1A3
Data inputs
11, 13, 15, 17
2A0 – 2A3
Data inputs
18, 16, 14, 12
1Y0 – 1Y3
Data outputs
9, 7, 5, 3
2Y0 – 2Y3
Data outputs
1, 19
1OE, 2OE
Output enables
10
GND
Ground (0V)
20
VCC
Positive supply voltage


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