Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Function | 8-bit serial-in shift register with output storage register |
| Parallel outputs | 8, 3-state |
| Supply range | 2.0 V to 5.5 V |
| Logic family | AHC CMOS |
| Output drive | ±8 mA class |
| Maximum frequency | 170 MHz parametric value |
| Package | TSSOP16 / SOT403-1 |
| Product status | Active |
Product Overview
The 74AHC595PW,118 is Nexperia’s active TSSOP16 reel orderable for an 8-bit serial-in shift register with a separate storage register and 3-state parallel outputs. Separate shift and latch clocks allow new serial data to be loaded without disturbing the currently displayed parallel state until the storage register is updated.
A serial output enables multiple devices to be cascaded for wider output expansion. The output-enable input can place all parallel outputs in high impedance without clearing either register, which is useful during bus handover or system startup.
Technical Specifications
| Parameter | Confirmed Information |
|---|---|
| Shift-register width | 8 bit |
| Storage register | 8 bit |
| Supply voltage | 2.0 V to 5.5 V |
| Logic input levels | CMOS |
| Output drive | ±8 mA class |
| Propagation delay | 4.0 ns parametric reference |
| Maximum frequency | 170 MHz parametric reference |
| Parallel outputs | 3-state |
| Operating temperature | -40°C to +125°C |
| RθJA for PW package | Approximately 122 K/W |
| Package | TSSOP16 / SOT403-1 |
Design Considerations
Keep OE inactive/high while outputs must not drive the bus during power-up or data loading. This avoids contention while the shift and storage registers are being initialized.
The AHC version uses CMOS thresholds; the related AHCT595 uses TTL-compatible thresholds. Those variants are not interchangeable when the driving logic-high level is close to the input threshold.
Related Engineering Resources
Quality & Verification Support
Third-party inspection or testing can be arranged according to customer requirements. Testing fees are borne by the buyer. Additional verification requirements can be discussed before shipment. After an order is placed, physical product, label, packaging, and Date Code photos may be provided where appropriate.
Request a Quote
To request a quotation, provide the manufacturer part number, required quantity, destination, target Date Code if applicable, and any testing or inspection requirements.
