DM7438

DM7438 7438 Quad 2-Input NAND Buffers with Open-Collector Outputs September 1986 Revised February 2000 DM7438 7438 Quad 2-Input NAND Buffers with Open-Collector Outputs General Description This device contains four independent gates each of which performs the logic NAND function. The open-collector outputs require external pull-up resistors for proper logical operation. N1 (IOH) = total maximum output high current for all outputs tied to pull-up resistor N2 (IIH) = total maximum input high current for all inputs tied to pull-up resistor N3 (IIL) = total maximum input low current for all inputs tied to pull-up resistor Pull-Up Resistor Equations Where: Ordering Code: Order Number DM7438M DM7438N 7438SJ Package Number M14A N14A M14D Package Description 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Connection Diagram Function Table Y = AB Inputs A L L H H H = HIGH Logic Level L = LOW Logic Level Output B L H L H Y H H H L © 2000 Fairchild Semiconductor Corporation DS006513 www.fairchildsemi.com DM7438 7438 Absolute Maximum Ratings(Note 1) Supply Voltage Input Voltage Output Voltage Operating Free Air Temperature Range Storage Temperature Range 7V 5.5V 7V 0°C to +70°C −65°C to +150°C Note 1: The “...