DS1651/DS3651 Quad High Speed MOS Sense Amplifiers
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
廬
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 鈥淎ND鈥?operations.
Features
n
n
n
n
n
n
High speed
TTL compatible
Input sensitivity 鈥?/div>
鹵
7 mV
TRI-STATE outputs for high speed buses
Standard supply voltages 鈥?/div>
鹵
5V
Pin and function compatible with MC3430
Connection Diagram
Dual-in-Line Package
Truth Table
Input
V
ID
鈮?/div>
7 mW
T
A
= 0藲C to +70藲C
鈭? mV
鈮?/div>
V
ID
鈮?/div>
+7 mV
T
A
= 0藲C to +70藲C
V
ID
鈮?/div>
鈭? mV
T
A
= 0藲C to +70藲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
廬
is a registered trademark of National Semiconductor Corporation.
漏 1999 National Semiconductor Corporation
DS007528
www.national.com
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