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DM74LS161AN
DM74LS161AN - Brand New onsemi IC Chips
Credit Card - One-month free return and one year warranty.
- Full or Partial Refund, if the item is not as described
- Full Refund if you don't receive your order
General Description
These synchronous, presettable counters feature an internal carry look-ahead
for application in high-speed counting designs. The DM74LS161A and DM74LS163A
are 4-bit binary counters. The carry output is decoded by means of a NOR gate,
thus preventing spikes during the normal counting mode of operation.
Synchronous operation is provided by having all flip-flops clocked
simultaneously so that the outputs change coincident with each other when so
instructed by the count-enable inputs and internal gating. This mode of
operation eliminates the output counting
spikes which are normally associated with asynchronous (ripple clock)
counters. A buffered clock input triggers the four flip-flops on the rising
(positive-going) edge of the clock input waveform.
Features
■Synchronously programmable
■Internal look-ahead for fast counting
■Carry output for n-bit cascading
■Synchronous counting
■Load control line
■Diode-clamped inputs
■Typical propagation time, clock to Q output 14 ns
■Typical clock frequency 32 MHz
■Typical power dissipation 93 mW
Shipping
| First item | Additional item | Service | Description |
|---|---|---|---|
| $0.00 | Free | Free Shipping | Estimated 15-30 business days via Registered Air Mail or others |
| $27.50 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
| $0.00 | Free | Buyer cooperating carrier | Using buyer's cooperating carrier. Buyer should create a shipping label and share it to us. And then we will call carrier for pickup |
| $38.00 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
Delivery
- The transportation time may be delayed due to customs clearance, local holidays or abnormal events.
- The estimated time is based on the fastest speed provided by commercial couriers (DHL, FedEx, UPS etc).
- The estimated time does not include the lead time of the item. The lead time of most items is 2–5 business days. If more than 5 working days are needed, we will manually confirm with you.
| Flag | Country | Express Delivery | Standard Delivery |
|---|---|---|---|
 | United States | 3 - 5 days | 10-15 days |
 | Canada | 3 - 5 days | 10-20 days |
 | Mexico | 3 - 5 days | 10-17 days |
 | Germany | 3 - 5 days | 10-12 days |
 | Italy | 3 - 5 days | 10-15 days |
 | United Kingdom | 3 - 5 days | 10-12 days |
Estimated Delivery
This item requires 2-5 business days for processing before shipping after payment is confirmed. And depending on the destination and shipping method.
Return Policy
| Return window | Refund type | Return shipping |
|---|---|---|
| 60 days after receiving item | Money Back or Replacement | Buyer pays for return shipping |
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