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MM74HC373 Fiches technique(PDF) 1 Page - Fairchild Semiconductor |
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MM74HC373 Fiches technique(HTML) 1 Page - Fairchild Semiconductor |
1 / 8 page © 2005 Fairchild Semiconductor Corporation DS005335 www.fairchildsemi.com September 1983 Revised May 2005 MM74HC373 3-STATE Octal D-Type Latch General Description The MM74HC373 high speed octal D-type latches utilize advanced silicon-gate CMOS technology. They possess the high noise immunity and low power consumption of standard CMOS integrated circuits, as well as the ability to drive 15 LS-TTL loads. Due to the large output drive capa- bility and the 3-STATE feature, these devices are ideally suited for interfacing with bus lines in a bus organized sys- tem. When the LATCH ENABLE input is HIGH, the Q outputs will follow the D inputs. When the LATCH ENABLE goes LOW, data at the D inputs will be retained at the outputs until LATCH ENABLE returns HIGH again. When a high logic level is applied to the OUTPUT CONTROL input, all outputs go to a high impedance state, regardless of what signals are present at the other inputs and the state of the storage elements. The 74HC logic family is speed, function, and pin-out com- patible with the standard 74LS logic family. All inputs are protected from damage due to static discharge by internal diode clamps to VCC and ground. Features s Typical propagation delay: 18 ns s Wide operating voltage range: 2 to 6 volts s Low input current: 1 PA maximum s Low quiescent current: 80 PA maximum (74 Series) s Output drive capability: 15 LS-TTL loads Ordering Code: Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Connection Diagram Pin Assignments for DIP, SOIC, SOP and TSSOP Top View Truth Table H HIGH Level L LOW Level Q0 Level of output before steady-state input conditions were established. Z High Impedance Order Number Package Number Package Description MM74HC373WM M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide MM74HC373SJ M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide MM74HC373MTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide MM74HC373N N20A 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide Output Latch Data 373 Control Enable Output L HHH LH L L LL X Q0 HX X Z |
Numéro de pièce similaire - MM74HC373_05 |
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Description similaire - MM74HC373_05 |
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