|Company||Motorola Semiconductor Products|
|Datasheet||Download 74193 datasheet|
|PRESETTABLE BCD/DECADE UP/DOWN COUNTER PRESETTABLE 4-BIT BINARY UP/DOWN COUNTER
The is an UP/DOWN BCD Decade (8421) Counter and the is an UP/DOWN MODULO-16 Binary Counter. Separate Count Up and Count Down Clocks are used and in either counting mode the circuits operate synchronously. The outputs change state synchronous with the LOW-to-HIGH transitions on the clock inputs. Separate Terminal Count Up and Terminal Count Down outputs are provided which are used as the clocks for a subsequent stages without extra logic, thus simplifying multistage counter designs. Individual preset inputs allow the circuits to be used as programmable counters. Both the Parallel Load (PL) and the Master Reset (MR) inputs asynchronously override the clocks.PRESETTABLE BCD / DECADE UP/ DOWN COUNTER PRESETTABLE 4-BIT BINARY UP/ DOWN COUNTER
Low Power. 95 mW Typical Dissipation High Speed. 40 MHz Typical Count Frequency Synchronous Counting Asynchronous Master Reset and Parallel Load Individual Preset Inputs Cascading Circuitry Internally Provided Input Clamp Diodes Limit High Speed Termination EffectsNOTE: The Flatpak version has the same pinouts (Connection Diagram) as the Dual In-Line Package.
LOADING (Note a) HIGH LOW 0.25 U.L. 0.25 U.L. 0.25 U.L. 0.25 U.L. 0.25 U.L. 5 (2.5) U.L. 5 (2.5) U.L. 5 (2.5) U.L. 5 4 CPU CPD P2 P3 TCU TCD
Count Up Clock Pulse Input Count Down Clock Pulse Input Asynchronous Master Reset (Clear) Input Asynchronous Parallel Load (Active LOW) Input Parallel Data Inputs Flip-Flop Outputs (Note b) Terminal Count Down (Borrow) Output (Note b) Terminal Count Up (Carry) Output (Note b)0.5 U.L. 0.5 U.L. 0.5 U.L. 0.5 U.L. 0.5 U.L. 10 U.L. 10 U.L. 10 U.L.
NOTES: a. 1 TTL Unit Load (U.L.) HIGH/1.6 mA LOW. b. The Output LOW drive factor is 2.5 U.L. for Military (54) and 5 U.L. for Commercial (74) b. Temperature Ranges.STATE DIAGRAMS LS192 LOGIC EQUATIONS FOR TERMINAL COUNT
|Related products with the same datasheet|
|Some Part number from the same manufacture Motorola Semiconductor Products|
|9S12DT128DGV2 Mc9s12dt128 Device User Guide V02.09|
|9S12DT256DGV3 Mc9s12dt256 Device User Guide V03.03|
|AM26LS32 Quad Eia-422/3 Line Receiver With Three.state Outputs|
|BAS4004LT1 Case 318 08, Style 12 Sot 23 ( to 236ab )|
|BAS4006LT1 Case 318-08, Style 11 Sot-23 ( To-236ab )|
|BAS7004LT1 Case 318-08, Style 12 Sot-23 To-236ab|