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Technical Specifications
Parameters and characteristics for this part
| Specification | SN74ALS193ANG4 |
|---|---|
| Count Rate | 30 MHz |
| Direction | Up, Down |
| Logic Type | Binary Counter |
| Mounting Type | Through Hole |
| Number of Bits per Element | 4 |
| Number of Elements | 1 |
| Operating Temperature [Max] | 70 °C |
| Operating Temperature [Min] | 0 °C |
| Package / Case | 0.3 in |
| Package / Case | 16-DIP |
| Package / Case | 7.62 mm |
| Reset | Asynchronous |
| Supplier Device Package | 16-PDIP |
| Timing | Synchronous |
| Trigger Type | Positive Edge |
| Voltage - Supply [Max] | 5.5 V |
| Voltage - Supply [Min] | 4.5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tube | 175 | $ 2.84 | |
Description
General part information
SN74ALS193A Series
The 'ALS193A are synchronous, reversible, 4-bit up/down binary counters. Synchronous counting operation is provided by having all flip-flops clocked simultaneously so that the outputs change coincident with each other when instructed by the steering logic. This mode of operation eliminates the output counting spikes normally associated with asynchronous (ripple-clock) counters.
The outputs of the four flip-flops are triggered on a low-to-high-level transition of either count/clock (UP or DOWN) input. The direction of the count is determined by which count input is pulsed while the other count input is high.
All four counters are fully programmable; that is, each output may be preset to either level by placing a low on the load () input and entering the desired data at the data inputs. The output changes to agree with the data inputs independently of the count pulses. This feature allows the counters to be used as modulo-N dividers by simply modifying the count length with the preset inputs.
Documents
Technical documentation and resources