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PDF HD74LVC16540 Data sheet ( Hoja de datos )
| Número de pieza | HD74LVC16540 | |
| Descripción | 16-bit Buffers / Line Drivers with 3-state Outputs | |
| Fabricantes | Hitachi Semiconductor | |
| Logotipo |  |
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HD74LVC16540
16-bit Buffers / Line Drivers with 3-state Outputs
ADE-205-057B(Z)
Rev.2
September 1995
Description
The HD74LVC16540 has sixteen inverter drivers with three state outputs in a 48 pin package. When G1
and G 2 is low level, this drivers set up output is enable. Low voltage and high speed operation is suitable
at the battery drive product (note type personal computer) and low power consumption extends the life of a
battery for long time operation.
Features
• VCC = 2.0 V to 5.5 V
• All inputs VIH (Max.) = 5.5 V (@VCC = 0 V to 5.5 V)
• Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25°C)
• Typical VOH undershoot > 2.0 V (@VCC = 3.3 V, Ta = 25°C)
• High output current ±24 mA (@VCC = 3.0 V to 5.5 V)
Function Table
G1 G2
LL
LL
HX
XH
H : High level
L : Low level
X : Immaterial
Z : High impedance
Inputs
A
L
H
X
X
Output Y
H
L
Z
Z
1 page  
HD74LVC16540
Switching Characteristics
Item
Propagation delay time
Output enable time
Output disable time
Input capacitance
Output capacitance
Symbol VCC (V)
tPLH 2.7
tPHL 3.3±0.3
5.0±0.5
tZH 2.7
tZL 3.3±0.3
5.0±0.5
tHZ 2.7
tLZ 3.3±0.3
5.0±0.5
CIN 2.7
CO 2.7
Ta = –40 to 85°C
Min Typ Max Unit
— 4.5 7.5 ns
1.5 3.5 6.5 ns
— 2.5 5.5 ns
— 5.5 9.0 ns
1.5 4.0 8.0 ns
— 3.0 6.5 ns
— 4.0 8.5 ns
1.5 3.5 7.5 ns
— 2.5 6.0 ns
— 3.0 — pF
— 15.0 — pF
From (Input) To (Output)
AY
GY
GY
Test Circuit
VCC
Input
VCC
G1
Output
Pulse Generator
Zout = 50 Ω
A1 Y1
500 Ω S1
CL = 450 Ω
50 pF 50 Ω Scope
OPEN
*1 See under table
GND
Notes:
G2
Symbol
S1
Vcc=2.7V,
3.3±0.3V
Vcc=5.0±0.5V
tPLH / t PHL OPEN
OPEN
tZH/ t HZ
GND
GND
tZL / t LZ
6V
2×Vcc
1. CL includes probe and jig capacitance.
2. A2-Y2 to A8-Y8 are identical to above load circuit.
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet HD74LVC16540.PDF ] | |
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