CD74HC190PW Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
CD74HC190PW is a bidirectional decade counter IC in a 16-pin TSSOP package from Texas Instruments. It features synchronous preset, ripple carry output (RCO), and operates up to 20 MHz at 5V supply. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- CD74HC190PW Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.6572(MOQ 1)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of CD74HC190PW?
- Bidirectional (UP/DOWN) synchronous decade BCD counter with a single U/D control pin for easy direction switching
- Ripple Carry Output (RCO) pin enables effortless cascading of multiple CD74HC190PW devices for wider-range counting without extra glue logic
- Synchronous parallel load input allows presetting any BCD count value, enabling programmable modulo-N counter configurations
- High-speed HC family operation up to 20 MHz at 5 V, 50 pF load, making it suitable for medium-frequency clock division and frequency synthesis
- 16-pin TSSOP-16 package occupies only ~28 mm² of PCB area, easing compact layout in space-constrained designs
What is CD74HC190PW used for?
CD74HC190PW is used in digital instrumentation, industrial controllers, and consumer electronics where bidirectional decimal counting or frequency division is needed. Its synchronous preset and RCO cascade output make it ideal for multi-decade scoreboard displays, event counters, and timer circuits in programmable logic controllers (PLCs). The compact TSSOP-16 footprint suits space-constrained PCB designs in portable measurement equipment and embedded control panels.
What are the specifications of CD74HC190PW?
| YTEOL | 0 |
| Additional Feature | RCO OUTPUT |
| Count Direction | BIDIRECTIONAL |
| Family | HC/UH |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Load/Preset Input | YES |
| Logic IC Type | DECADE COUNTER |
| Max Frequency@Nom-Sup | 20000000Hz |
| Max I(ol) | 0.0052A |
| Mode of Operation | SYNCHRONOUS |
| Number of Bits | 4 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.08mA |
| Prop. Delay@Nom-Sup | 37ns |
| Propagation Delay (tpd) | 255ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 4.5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| 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 | 23MHz |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Malaysia |
Where can I find the CD74HC190PW datasheet?
CD74HC190PW Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD74HC190PW?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum counting frequency of CD74HC190PW and at which supply voltage is it achieved?
CD74HC190PW achieves its maximum counting frequency of 20 MHz when powered from a 5 V supply with a 50 pF load capacitance. At lower supply voltages such as 3.3 V the maximum frequency drops to roughly 13 MHz, so designers targeting high-speed applications should use the 5 V supply rail to maximize throughput and maintain reliable counting margins.
How does the RCO output on CD74HC190PW simplify cascading multiple decade counter stages?
The Ripple Carry Output (RCO) pin goes active-low for one clock period when the counter reaches its terminal count (9 in UP mode or 0 in DOWN mode). Connecting this RCO directly to the ENABLE input of the next CD74HC190PW stage allows multi-decade counting chains covering 10, 100, or 1000 count ranges without any external combinational logic, reducing BOM by eliminating additional gate ICs and saving PCB space.
How can the synchronous parallel load feature be used to create a modulo-N counter with CD74HC190PW?
By holding the LOAD input low and placing the desired preset value on the P0–P3 data inputs, the CD74HC190PW synchronously loads any BCD value from 0 to 9 on the next rising clock edge. Combining this with external decode logic to assert LOAD at count N-1 produces a modulo-N counter, useful for generating custom time-base intervals such as a divide-by-6 circuit producing 1 kHz from a 6 kHz source with only a single CD74HC190PW and a NAND gate.
For a PCB layout targeting minimal board space, what are the key dimensions of the TSSOP-16 package used by CD74HC190PW?
The TSSOP-16 package of CD74HC190PW measures approximately 5.0 mm × 4.4 mm body with a 0.65 mm pin pitch. The overall footprint including pads is roughly 6.4 mm × 5.4 mm, occupying about 35 mm² of PCB area — significantly smaller than a DIP-16 package at 19 mm × 7 mm. This compact footprint makes CD74HC190PW suitable for handheld instruments and high-density control boards where space is at a premium.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
About Texas Instruments
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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.5400 | $1.54 |
| 10+ | $1.1280 | $11.28 |
| 90+ | $0.9172 | $82.55 |
| 1000+ | $0.8798 | $879.80 |
| 10000+ | $0.7844 | $7844.00 |
| 100000+ | $0.6572 | $65720.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit