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PDF DS1651 Data sheet ( Hoja de datos )
| Número de pieza | DS1651 | |
| Descripción | Quad High Speed MOS Sense Amplifiers | |
| Fabricantes | National | |
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Hay una vista previa y un enlace de descarga de DS1651 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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June 1999
DS1651/DS3651
Quad High Speed MOS Sense Amplifiers
General Description
The DS1651/DS3651 is TTL compatible high speed circuits
intended for sensing in a broad range of MOS memory sys-
tem applications. Switching speeds have been enhanced
over conventional sense amplifiers by application of Schot-
tky technology, and TRI-STATE® strobing is incorporated, of-
fering a high impedance output state for bused organization.
The DS1651/DS3651 has active pull-up outputs and offers
open collector outputs providing implied “AND” operations.
Features
n High speed
n TTL compatible
n Input sensitivity — ±7 mV
n TRI-STATE outputs for high speed buses
n Standard supply voltages — ±5V
n Pin and function compatible with MC3430
Connection Diagram
Dual-in-Line Package
Truth Table
Input
VID ≥ 7 mW
TA = 0˚C to +70˚C
−7 mV ≤ VID ≤ +7 mV
TA = 0˚C to +70˚C
VID ≤ −7 mV
TA = 0˚C to +70˚C
L = Low logic state
H = High logic state
Open = TRI-STATE
X = Indeterminate state
Strobe
L
H
L
H
L
H
Output
DS3651
H
Open
X
Open
L
Open
DS007528-1
Top View
Order Number DS1651J, DS3651J or DS3651N
See NS Package Number J16A or N16A
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
© 1999 National Semiconductor Corporation DS007528
www.national.com
1 page  
AC Test Circuits
tPLO(S)
tPHO(S)
tPOL(S)
DS007528-4
tPOH(S)
DS007528-5
DS007528-6
DS007528-7
FIGURE 1. Strobe Propagation Delay tPLO(S), tPOL(S), tPHL(S) and tPOH(S)
Note: Output of channel B shown under test, other channels are tested similarly.
S1 at “B” for DS1651/DS3651, CL = 50 pF total for DS1651/DS3651.
DS007528-8
DS007528-9
EIN waveform characteristics:
tTLH and tTHL ≤ 10 ns measured 10% to 90%
PRR = 1 MHz, duty cycle = 500 ns
FIGURE 2. Differential Input Propagation Delay tPLH(D) and tPHL(D)
5 www.national.com
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| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet DS1651.PDF ] | |
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