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PDF HD74ALVCH16835 Data sheet ( Hoja de datos )
| Número de pieza | HD74ALVCH16835 | |
| Descripción | 18-bit Universal Bus Driver with 3-state Outputs | |
| Fabricantes | Hitachi Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de HD74ALVCH16835 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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HD74ALVCH16835
18-bit Universal Bus Driver with 3-state Outputs
ADE-205-126D (Z)
5th. Edition
December 1999
Description
The HD74ALVCH16835 is an 18-bit universal bus driver designed for 2.3 V to 3.6 V VCC operation. Data
flow from A to Y is controlled by the output enable (OE). The device operates in the transparent mode
when the latch enable (LE) input is high. The A data is latched if the clock (CLK) input is held at a high or
low logic level. If the LE is low, the A bus data is stored in the latch/flip flop on the low to high transition
of CLK. When OE is high, the outputs are in the high impedance state. To ensure the high impedance
state during power up or power down, the output ebable (OE) input should be tied to VCC through a pullup
resistor; the minimum value of the resistor is determined by the current sinking capability of the driver.
Active bus hold circuitry is provided to hold unused or floating data inputs at a valid logic level.
Features
• Supports unregulated battery operation down to 2.7 V
• Bus hold on data inputs eliminates the need for external pullup resistors.
• Distrlbuted VCC and GND pin conflguration minimizes high speed switching noise.
1 page  
Logic Diagram
OE
CLK
LE
A1
27
30
28
54
HD74ALVCH16835
1D
C1
CLK
3 Y1
To 17 Other Channels
5
5 Page 
Package Dimensions
14.00
+0.3
–0.1
56
29
1
0.20
+0.1
–0.05
0.50
0.08 M
28
0.40 Max
0.10
HD74ALVCH16835
Unit : mm
8.10 ± 0.3
10° Max
0.50 ± 0.1
Hitachi code
EIAJ code
JEDEC code
TTP-56D
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11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet HD74ALVCH16835.PDF ] | |
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