component
SN74HC590ADWR
Public Made by Adomby adom
Texas Instruments Counters, Dividers, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads only if this page sits in the background.
PCB Footprint
Open full view ↗Loads on click. Unloads only if this page sits in the background.
Datasheet
Open in new tab ↗Loads on click. Unloads only if this page sits in the background.
README
markdownSN74HC590ADWR
Texas Instruments · Counters, Dividers · SOIC-16
SN74HC590ADWR from Texas Instruments, in a SOIC-16. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | QB | tri_state | Parallel 3-state register output QB of the 8-bit storage register, which is loaded from the counter on the RCLK rising edge and drives up to 15 LSTTL loads. |
| 2 | QC | tri_state | Parallel 3-state register output QC of the 8-bit storage register, which is loaded from the counter on the RCLK rising edge and drives up to 15 LSTTL loads. |
| 3 | QD | tri_state | Parallel 3-state register output QD of the 8-bit storage register, which is loaded from the counter on the RCLK rising edge and drives up to 15 LSTTL loads. |
| 4 | QE | tri_state | Parallel 3-state register output QE of the 8-bit storage register, which is loaded from the counter on the RCLK rising edge and drives up to 15 LSTTL loads. |
| 5 | QF | tri_state | Parallel 3-state register output QF of the 8-bit storage register, which is loaded from the counter on the RCLK rising edge and drives up to 15 LSTTL loads. |
| 6 | QG | tri_state | Parallel 3-state register output QG of the 8-bit storage register, which is loaded from the counter on the RCLK rising edge and drives up to 15 LSTTL loads. |
| 7 | QH | tri_state | Parallel 3-state register output QH of the 8-bit storage register, which is loaded from the counter on the RCLK rising edge and drives up to 15 LSTTL loads. |
| 8 | GND | power_in | Ground reference for the device. |
| 9 | RCO | output | Ripple-carry output for cascading; it is connected to CCKEN of a second stage for two-stage expansion or to CCLK of the following stage for longer chains, and is driven by CCLK rising edges (tpd CCLK↑ to RCO). |
| 10 | CCLR | input | Direct (asynchronous) clear input for the binary counter; a low level clears the counter independently of CCLK, and the datasheet specifies a minimum CCLR low pulse width. |
| 11 | CCLK | input | Counter clock input, positive-edge triggered; if tied to RCLK the register is one count behind the counter. |
| 12 | CCKEN | input | Counter clock enable; a high level inhibits the counter clock (CCKEN must be low before CCLK rises, with listed setup and hold times). |
| 13 | RCLK | input | Storage register clock input, positive-edge triggered, which transfers the counter state to the 8-bit output register; it must be set up before the register clock edge relative to CCLK, with the listed timing limits. |
| 14 | OE | input | Output enable for QA-QH; the switching characteristics show outputs enabled on OE going low and placed in 3-state on OE going high. |
| 15 | QA | tri_state | Parallel 3-state register output QA of the 8-bit storage register, which is loaded from the counter on the RCLK rising edge and drives up to 15 LSTTL loads. |
| 16 | VCC | power_in | Supply voltage, specified from 2 V to 6 V with absolute maximum of 7 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16 |
| Category | Logic |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
SN74HC590ADWR - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16 (KiCad packages3D, STEP)
- 3D model files:
sn74hc590adwr-etched.step/sn74hc590adwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74hc590adwr.step/sn74hc590adwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (26 pp, sha256
15f4b455093631e3, retrieved 2026-10-08, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).