MM74HC148MX ,8-3 Line Priority EncoderMM74HC148 8-3 Line Priority EncoderOctober 1987Revised September 2001MM74HC1488-3 Line Priority Enc ..
MM74HC148N ,8-3 Line Priority EncoderMM74HC148 8-3 Line Priority EncoderOctober 1987Revised September 2001MM74HC1488-3 Line Priority Enc ..
MM74HC14M ,Hex Inverting Schmitt TriggerMM74HC14 Hex Inverting Schmitt TriggerSeptember 1983Revised January 2005MM74HC14Hex Inverting Schmi ..
MM74HC14MTC ,Hex Inverting Schmitt TriggerFeaturesThe MM74HC14 utilizes advanced silicon-gate CMOS
MM74HC148M-MM74HC148MX-MM74HC148N
8-3 Line Priority Encoder
MM74HC148 8-3 Line Priority Encoder October 1987 Revised September 2001 MM74HC148 8-3 Line Priority Encoder General Description Features The MM74HC148 priority encoder utilizes advanced sili-Typical propagation delay: 13 ns con-gate CMOS technology. It has the high noise immunityWide supply voltage range: 2V–6V and low power consumption typical of CMOS circuits, as well as the speeds and output drive similar to LB-TTL. This priority encoder accepts 8 input request lines 0–7 and outputs 3 lines A0–A2. The priority encoding ensures that only the highest order data line is encoded. Cascading cir- cuitry (enable input EI and enable output EO) has been provided to allow octal expansion without the need for external circuitry. All data inputs and outputs are active at the low logic level. All inputs are protected from damage due to static dis- charge by internal diode clamps to V and ground. CC Ordering Code: Order Number Package Number Package Description MM74HC148M M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow MM74HC148N N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide Connection Diagram Truth Table Inputs Outputs EI 012 345 67 A2 A1 A0 GS EO H X X X X X X X X HHHHH L H H HH H HH H HHHH L L XXXXXXX L LLLL H L X X X X X X L H L LH LH L X X XXX L H H L H L L H LX X X X L H H H L H H L H L XXX L HHHH H LLL H L X X L HHH HH H L H L H L X L H HHH HH H H L L H L L HH HHH HH H H H L H H = HIGH L = LOW X = Irrelevant © 2001 DS009390
