Key facts
- Brand
- Texas Instruments
- Model
- SN54LV161A, SN74LV161A
- Category
- Other Electronics
- Industry
- Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2026-10-21
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Texas Instruments SN54LV161A/SN74LV161A 4-Bit Synchronous Binary Counter Datasheet
The SN54LV161A and SN74LV161A devices are 4-bit synchronous binary counters designed for 2-V to 5.5-V operation. They feature internal carry look-ahead for fast counting, synchronous presetting, and asynchronous clear functionality. The counters support mixed-mode voltage operation and include Ioff circuitry for partial-power-down mode to prevent damaging current backflow.
Read onlineTexas Instruments SN54LV161A, SN74LV161A specifications
| Supply Voltage Range | 2 V to 5.5 V |
|---|---|
| Maximum Propagation Delay | 9.5 ns |
| Output Ground Bounce | < 0.8 V |
| Output Voltage Undershoot | > 2.3 V |
| Latch-Up Performance | Exceeds 100 mA |
| ESD Protection (Human-Body Model) | 200 V |
| ESD Protection (Charged-Device Model) | 1000 V |
| Storage Temperature Range | -65 °C to 150 °C |
Source: Texas Instruments SN54LV161A/SN74LV161A 4-Bit Synchronous Binary Counter Datasheet
All Texas Instruments SN54LV161A, SN74LV161A documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the operating voltage range for these counters?
The devices are designed for 2-V to 5.5-V V CC operation.
From: Texas Instruments SN54LV161A/SN74LV161A 4-Bit Synchronous Binary Counter Datasheet
Is the clear function synchronous or asynchronous?
The clear function for the devices is asynchronous.
From: Texas Instruments SN54LV161A/SN74LV161A 4-Bit Synchronous Binary Counter Datasheet
What is the maximum toggle time at a 5 V supply?
The maximum toggle time is 9.5 ns when powered at 5 V.
From: Texas Instruments SN54LV161A SN74LV161A 4‑Bit Synchronous Binary Counter Datasheet