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SN74HC595N Part Review
Date: 2026-07-07 | Field | Current project value | Datasheet / official value | Status |
View docCompleted the part review and updated the Datasheet URL to the official TI PDF. Full findings are in SN74HC595N Part Review.
Open items:
- MPN should likely be changed from
SN74HC595_N_16to officialSN74HC595N. - Pin types/descriptions are all currently
Unspecified. - Pin 9 is named
QH_2; datasheet usesQH′/ QH-prime serial output.
Suggested next steps:
- Update MPN and description to match TI’s official part data.
- Set pin types/descriptions for all 16 terminals.
- Rename pin 9 to a clearer datasheet-aligned name.
Based on the datasheet, write a concise, direct description for the exact component MPN: [MPN]. Describe only this specific part, not the whole series or family. Keep it to one useful sentence with the main function, key specs, package/mounting if relevant, and no generic marketing text. If the datasheet does not clearly confirm something for this exact MPN, do not invent it. Then add 4–5 precise search keywords/tags.
Thought for 7 sec
For SN74HC595N:
Description: Texas Instruments SN74HC595N is an 8-bit serial-in/parallel-out shift register with 3-state output registers, 2 V to 6 V operation, -40°C to 85°C rating, in a 16-pin through-hole PDIP (N) package.
Keywords/tags:
- SN74HC595N
- 8-bit shift register
- serial-in parallel-out
- 3-state outputs
- PDIP-16
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Set pin details
Rename QH prime
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SN74HC595N Part Review
Date: 2026-07-07
Part metadata reviewed
Table
| Field | Current project value | Datasheet / official value | Status |
|---|---|---|---|
| Project name | SN74HC595N | SN74HC595N | Match |
| Description | SN74HC595_N_16 | 8-bit shift registers with 3-state output registers | Weak / generic |
| Manufacturer Part Number | SN74HC595_N_16 | SN74HC595N | Mismatch: current value includes package-style suffix and underscore notation, not the official TI orderable MPN |
| Manufacturer Name | Texas Instruments | Texas Instruments | Match; updated |
| Part Type | Integrated Circuit | Integrated circuit / logic shift register | Match; updated |
| Datasheet URL | https://www.ti.com/lit/ds/symlink/sn74hc595.pdf | Official TI datasheet | Match; updated |
| Package | N16 footprint / 16-DIP | PDIP (N), 16 pins | Match |
| Pin count | 16 | 16 | Match |
Official source used: Texas Instruments SNx4HC595 datasheet, Rev. J, https://www.ti.com/lit/ds/symlink/sn74hc595.pdf; TI SN74HC595N product page lists package PDIP (N), 16 pins, ACTIVE, -40 to 85 C.
Key datasheet specs
Table
| Parameter | Value |
|---|---|
| Function | 8-bit serial-in, parallel-out shift register with 3-state output registers |
| Supply voltage, recommended | 2 V to 6 V |
| SN74HC595 operating temperature | -40 C to 85 C |
| Absolute maximum VCC | -0.5 V to 7 V |
| Output drive feature rating | +/-6 mA at 5 V |
| Absolute maximum continuous output current | +/-35 mA per output |
| Absolute maximum continuous VCC or GND current | +/-70 mA |
| Typical propagation delay | 13 ns typical |
| Package for SN74HC595N | PDIP (N), 16 pins |
| Nominal pitch / row spacing | 2.54 mm pitch, 7.62 mm row spacing |
Datasheet pin table vs current symbol
Table
| Pin | Datasheet name | Datasheet role | Current terminal | Current pin type | Status |
|---|---|---|---|---|---|
| 1 | QB | Output | QB | Unspecified | Name/number match; type missing |
| 2 | QC | Output | QC | Unspecified | Name/number match; type missing |
| 3 | QD | Output | QD | Unspecified | Name/number match; type missing |
| 4 | QE | Output | QE | Unspecified | Name/number match; type missing |
| 5 | QF | Output | QF | Unspecified | Name/number match; type missing |
| 6 | QG | Output | QG | Unspecified | Name/number match; type missing |
| 7 | QH | Output | QH | Unspecified | Name/number match; type missing |
| 8 | GND | Ground | GND | Unspecified | Name/number match; type missing |
| 9 | QH' | Serial output | QH_2 | Unspecified | Number/function match likely; name differs from datasheet QH' notation |
| 10 | SRCLR | Input, active low | *SRCLR | Unspecified | Name/number match with active-low prefix; type missing |
| 11 | SRCLK | Input | SRCLK | Unspecified | Name/number match; type missing |
| 12 | RCLK | Input | RCLK | Unspecified | Name/number match; type missing |
| 13 | OE | Input, active low | *OE | Unspecified | Name/number match with active-low prefix; type missing |
| 14 | SER | Input | SER | Unspecified | Name/number match; type missing |
| 15 | QA | Output | QA | Unspecified | Name/number match; type missing |
| 16 | VCC | Power | VCC | Unspecified | Name/number match; type missing |
Footprint cross-check
The footprint asset is
SN74HC595N.kicad_mod, value N16, with 16 through-hole pads. The KiCad footprint payload uses 2.54 mm pitch, 7.62 mm row spacing, 1.2954 mm pad diameter, 0.7874 mm drill, rectangular pad 1, and pin-1 marker/notch. This matches the TI N-package PDIP-16 family geometry at the level needed for a standard DIP footprint.Mismatches / cleanup recommendations
- MPN mismatch: The project property is
SN74HC595_N_16; official orderable TI MPN isSN74HC595N. Rename the Manufacturer Part Number property toSN74HC595N. - Description is too generic: Replace
SN74HC595_N_16with8-bit shift registers with 3-state output registersor similar. - Pin types/descriptions are missing: Every terminal has
Pin Type: Unspecified; set outputs, inputs, power, and ground per the table above. - Pin 9 naming differs: Current symbol uses
QH_2; datasheet usesQH'/ QH-prime serial output. Consider renaming toQH'orQH_PRIMEfor clarity. - Datasheet URL is now set:
https://www.ti.com/lit/ds/symlink/sn74hc595.pdf.
Part metadata reviewed
Key datasheet specs
Datasheet pin table vs current symbol
Footprint cross-check
Mismatches / cleanup recommendations
