DS1651

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 system applications. Switching speeds have been enhanced over conventional sense amplifiers by application of Schottky technology, and TRI-STATE ® strobing is incorporated, offering 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 n n n n n High speed TTL compatible Input sensitivity — ± 7 mV TRI-STATE outputs for high speed buses Standard supply voltages — ± 5V 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 Typical Applications A Typical MOS Memory Sensing Application for a 4k work by 4-bit Memory Arrangement Employing 1103 Type Memory Devices DS007528-2 Note: Only 4 devices are r...