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PDF 74ABT240PW Data sheet ( Hoja de datos )

Número de pieza 74ABT240PW
Descripción Octal inverting buffer 3-State
Fabricantes NXP Semiconductors 
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Philips Semiconductors
Octal inverting buffer (3-State)
Product specification
74ABT240
FEATURES
Octal bus interface
3-State buffers
Output capability: +64mA/–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
Live insertion/extraction permitted
DESCRIPTION
The 74ABT240 high-performance BiCMOS device combines low
static and dynamic power dissipation with high speed and high
output drive.
The 74ABT240 device is an octal inverting buffer that is ideal for
driving bus lines. The device features two Output Enables (1OE,
2OE), each controlling four of the 3-State outputs.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
tPLH
tPHL
CIN
COUT
ICCZ
Propagation delay
nAx to nYx
Input capacitance
Output capacitance
Total supply current
CONDITIONS
Tamb = 25°C; GND = 0V
CL = 50pF; VCC = 5V
VI = 0V or VCC
Outputs disabled; VO = 0V or VCC
Outputs disabled; VCC =5.5V
TYPICAL
3.1
4
7
50
UNIT
ns
pF
pF
µA
ORDERING INFORMATION
PACKAGES
20-Pin Plastic DIP
20-Pin plastic SO
20-Pin Plastic SSOP Type II
20-Pin Plastic TSSOP Type I
TEMPERATURE RANGE OUTSIDE NORTH AMERICA
–40°C to +85°C
74ABT240 N
–40°C to +85°C
74ABT240 D
–40°C to +85°C
74ABT240 DB
–40°C to +85°C
74ABT240 PW
NORTH AMERICA
74ABT240 N
74ABT240 D
74ABT240 DB
74ABT240PW DH
DWG NUMBER
SOT146-1
SOT163-1
SOT339-1
SOT360-1
PIN DESCRIPTION
PIN
NUMBER
SYMBOL
2, 4, 6, 8 1A0 – 1A3
11, 13, 15,
17
2A0 – 2A3
18, 16, 14,
12
1Y0 – 1Y3
9, 7, 5, 3 2Y0 – 2Y3
1, 19
1OE, 2OE
10 GND
20 VCC
NAME AND FUNCTION
Data inputs
Data inputs
Data outputs
Data outputs
Output enables
Ground (0V)
Positive supply voltage
PIN CONFIGURATION
1OE 1
1A0 2
2Y0 3
1A1 4
2Y1 5
1A2 6
2Y2 7
1A3 8
2Y3 9
GND 10
20 VCC
19 2OE
18 1Y0
17 2A0
16 1Y1
15 2A1
14 1Y2
13 2A2
12 1Y3
11 2A3
SA00034
1996 Sep 10
2 853–1608 17274

1 page




74ABT240PW pdf
Philips Semiconductors
Octal inverting buffer (3-State)
Product specification
74ABT240
TEST CIRCUIT AND WAVEFORMS
VCC
PULSE
GENERATOR
VIN
RT
D.U.T.
VOUT
CL
RL
RL
Test Circuit for 3-State Outputs
SWITCH POSITION
TEST SWITCH
tPLZ
tPZL
All other
closed
closed
open
7.0V
90%
NEGATIVE
PULSE
POSITIVE
PULSE
10%
VM
10%
tW
VM
10%
tTHL (tF)
tTLH (tR)
90%
VM
90%
VM
tW
VM = 1.5V
Input Pulse Definition
90%
AMP (V)
0V
tTLH (tR)
tTHL (tF)
AMP (V)
10%
0V
DEFINITIONS
RL = Load resistor; see AC CHARACTERISTICS for value.
CL = Load capacitance includes jig and probe capacitance;
see AC CHARACTERISTICS for value.
RT = Termination resistance should be equal to ZOUT of
pulse generators.
FAMILY
74ABT
INPUT PULSE REQUIREMENTS
Amplitude Rep. Rate tW tR tF
3.0V
1MHz 500ns 2.5ns 2.5ns
SA00012
1996 Sep 10
6

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