VERIFIED CROSS-REFERENCE
74HC595 alternatives & equivalent parts
8-bit serial-in, parallel-out shift register with 3-state outputs — common packages: SOIC-16, TSSOP-16, DIP-16. Each candidate below cites its manufacturer datasheet; check the relationship badge before substituting.
4 verified alternatives for 74HC595
| Alternative | Manufacturer | Relationship | Key differences | Source |
|---|---|---|---|---|
| SN74HC595DR | Texas Instruments | Pin-to-pinDrop-in: same footprint and pinout. | TI's active HC595 in SOIC-16: pin-to-pin with any 74HC595 in SOIC-16. 2-6 V operation, about 6 mA outputs at 5 V, separate shift/storage clocks, direct clear, 3-state outputs. Check max clock frequency against the part being replaced. | TI 官方数据手册 |
| MC74HC595ADR2G | onsemi | Pin-to-pinDrop-in: same footprint and pinout. | onsemi's HC595 in SOIC-16 (tape & reel): pin-to-pin with 74HC595 in SOIC-16, same 2-6 V HC operation and 3-state latched outputs. Differences: third-party mirror of official datasheet. | 数据手册（第三方托管，购买前请核对原厂） |
| 74HC595PW | Nexperia | Pin-to-pinDrop-in: same footprint and pinout. | Nexperia's HC595 in TSSOP-16: pin-to-pin with 74HC595 in TSSOP-16. 2-6 V CMOS operation, separate shift and storage clocks, direct clear, 3-state outputs. | Nexperia 官方页面 |
| 74HC595BQ | Nexperia | FunctionalSame function: board or design change needed. | Same 74HC595 function in leadless DHVQFN-16 - a smaller footprint than SOIC/TSSOP, so a PCB change is required. Same 2-6 V operation and 3-state latched outputs. | Nexperia 官方页面 |
Pre-replacement checklist
- Use the replacement in the same package (SOIC-16, TSSOP-16, or DIP-16); the BQ/QFN variant needs a new footprint.
- Confirm 2-6 V HC supply operation; do not mix with HCT variants (4.5-5.5 V, TTL thresholds) without checking input levels.
- Check output drive (about 6 mA at 5 V) and max shift-clock frequency for LED or high-speed uses.
- Verify cascading: SER/SRCLK/RCLK/OE/SRCLR behavior is standard, but confirm pin 9 (QH') wiring in your design.
Need the exact lot, date code or a second source quoted?
Send the original MPN and the approved alternative. Sourceics reconfirms source, stock, date code and commercial terms before any order — no substitution without your engineering approval.
Request a quote for 74HC595Source part reference: TI 官方数据手册. Equivalence notes are reference guidance, not a guarantee of fit — always verify against your schematic and layout.