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Click here for more information74AHC594DB
8-bit shift register with output register
The 74AHC594; 74AHCT594 is a high-speed Si-gate CMOS device and is pin compatible with Low-Power Schottky TTL (LSTTL). It is specified in compliance with JEDEC standard No. 7-A.
The 74AHC594; 74AHCT594 is an 8-bit, non-inverting, serial-in, parallel-out shift register that feeds an 8-bit D-type storage register. Separate clocks (SHCP and STCP) and direct overriding clears (SHR and STR) are provided on both the shift and storage registers. A serial output (Q7S) is provided for cascading purposes.
Both the shift and storage register clocks are positive-edge triggered. If the user wishes to connect both clocks together, the shift register will always be one count pulse ahead of the storage register.
Alternatives
Features and benefits
Wide supply voltage range from 2.0 V to 5.5 V
Balanced propagation delays
All inputs have Schmitt-trigger action
Overvoltage tolerant inputs to 5.5 V
High noise immunity
CMOS low power dissipation
8-bit serial-in, parallel-out shift register with storage
Independent direct overriding clears on shift and storage registers
Independent clocks for shift and storage registers
Latch-up performance exceeds 100 mA per JESD 78 Class II Level A
Input levels:
For 74AHC594: CMOS level
For 74AHCT594: TTL level
ESD protection:
HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V
CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V
Multiple package options
Specified from -40 °C to +85 °C and from -40 °C to +125 °C
Applications
Serial-to parallel data conversion
Remote control holding register
PCB Symbol, Footprint and 3D Model
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Package
All type numbers in the table below are discontinued.
| Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing |
|---|---|---|---|---|---|---|---|
| 74AHC594DB | 74AHC594DB,112 (935282019112) |
Obsolete | no package information | ||||
| 74AHC594DB,118 (935282019118) |
Obsolete | ||||||
Environmental information
All type numbers in the table below are discontinued.
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
|---|---|---|---|---|
| 74AHC594DB | 74AHC594DB,112 | 74AHC594DB |
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| 74AHC594DB | 74AHC594DB,118 | 74AHC594DB |
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Series
Documentation (3)
| File name | Title | Type | Date |
|---|---|---|---|
| 74AHC_AHCT594 | 8-bit shift register with output register | Data sheet | 2024-03-07 |
| AN11106 | Pin FMEA for AHC/AHCT family | Application note | 2019-01-09 |
| ahc594 | ahc594 IBIS model | IBIS model | 2013-04-08 |
Support
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Models
| File name | Title | Type | Date |
|---|---|---|---|
| ahc594 | ahc594 IBIS model | IBIS model | 2013-04-08 |
PCB Symbol, Footprint and 3D Model
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How does it work?
The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.