SN74HC163DBRG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
SN74HC163DBRG4 is a 4-bit synchronous binary up-counter with parallel load in a 16-pin SSOP package. It operates up to 25 MHz, features a Ripple Carry Output for easy cascade, and supports preset load and clear functions. RoHS-compliant and available in stock worldwide.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- SN74HC163DBRG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SN74HC163DBRG4?
- Synchronous 4-bit binary up-counter with parallel load enable supporting up to 25 MHz clock frequency for high-speed digital counting
- Ripple Carry Output (RCO) pin allows direct cascade of multiple SN74HC163 devices to build wider counters without external logic
- Synchronous clear and preset-load inputs provide glitch-free initialization of counter state at any count value
- HC/UH CMOS family with 50 pF load capacitance and 4 mA sink current compatible with 3.3 V and 5 V logic systems
What is SN74HC163DBRG4 used for?
SN74HC163DBRG4 is used as a timing divider, address sequencer, and event counter in digital logic boards, FPGA companion circuits, and microcontroller peripheral expansions. Its synchronous load capability makes it ideal for programmable frequency division and modulo-N counter designs where the modulus must be changed at runtime without glitches. Educational electronics labs also rely on the HC163 as a classic 4-bit counter reference for teaching state machine and sequential logic concepts.
What are the specifications of SN74HC163DBRG4?
| YTEOL | 0 |
| Additional Feature | RCO OUTPUT |
| Count Direction | UP |
| Family | HC/UH |
| JESD-30 Code | R-PDSO-G16 |
| Load Capacitance (CL) | 50pF |
| Load/Preset Input | YES |
| Logic IC Type | BINARY COUNTER |
| Max Frequency@Nom-Sup | 25000000Hz |
| Max I(ol) | 0.004A |
| Mode of Operation | SYNCHRONOUS |
| Number of Bits | 4 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SSOP16,.3 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Power Supply Current-Max (ICC) | 50mA |
| Prop. Delay@Nom-Sup | 51ns |
| Propagation Delay (tpd) | 255ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Trigger Type | POSITIVE EDGE |
| fmax-Min | 29MHz |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
Where can I find the SN74HC163DBRG4 datasheet?
SN74HC163DBRG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74HC163DBRG4?
Compatible alternatives and drop-in replacements for SN74HC163DBRG4:
Binary Counter, HC/UH Series, Synchronous, Positive Edge Triggered, 4-Bit, Up Direction, CMOS, PDSO16
Binary Counter, HC/UH Series, Synchronous, Positive Edge Triggered, 4-Bit, Up Direction, CMOS, PDSO16
Frequently Asked Questions
What is the maximum clock frequency of SN74HC163DBRG4 and how can multiple devices be cascaded for wider counters?
SN74HC163DBRG4 supports a maximum clock frequency of 25 MHz. To cascade multiple devices into 8-bit or wider counters, the Ripple Carry Output (RCO) of the lower-order stage connects directly to the count-enable inputs of the next stage. Because the RCO goes high only when all 4 bits are at their maximum count, the cascade chain propagates carry synchronously with the clock, avoiding glitch events during rollover transitions.
How does SN74HC163DBRG4's synchronous parallel load feature benefit programmable frequency divider designs?
The synchronous parallel load of SN74HC163DBRG4 allows a designer to preset the counter to any 4-bit value on the next rising clock edge by asserting the load enable pin and placing the desired value on the data inputs. For a modulo-N frequency divider, the counter is loaded with (16 - N) at rollover, producing an output pulse every N clock cycles. The synchronous load avoids the output glitches and setup hazards that asynchronous preset signals would introduce at 25 MHz.
Which package does SN74HC163DBRG4 use and how does it compare to the standard SOIC-16 in board density?
SN74HC163DBRG4 is housed in an SSOP-16 package with a 0.635 mm lead pitch and a body width of approximately 5.3 mm, which is roughly 40% narrower than an SOIC-16 at 3.9 mm body width with 1.27 mm pitch. While the tighter SSOP pitch requires finer PCB trace capability, it frees up significant board area in dense digital logic layouts. Automated pick-and-place equipment handles SSOP-16 reliably in standard surface-mount production lines.
For a 4-bit address sequencer in a bus controller, how does SN74HC163DBRG4 reduce external component count?
SN74HC163DBRG4 integrates synchronous clear, synchronous load, and RCO carry-out in a single SSOP-16 device, eliminating the need for separate reset flip-flops or external carry logic when building a 4-bit address sequencer. The 25 MHz counting speed covers most low-to-mid-speed bus protocols, and the 4 mA output drive capability is sufficient to directly drive HC-compatible bus receivers without external buffers, keeping the component count minimal on the bus controller PCB.
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Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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