74AHC594; 74AHCT594
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.
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
Parametrics
| Type number | VCC (V) | Logic switching levels | Output drive capability (mA) | tpd (ns) | fmax (MHz) | Nr of bits | Power dissipation considerations | Tamb (°C) | Package name |
|---|---|---|---|---|---|---|---|---|---|
| 74AHC594BQ | 2.0 - 5.5 | CMOS | ± 8 | 4.1 | 160 | 8 | low | -40~125 | DHVQFN16 |
| 74AHC594D | 2.0 - 5.5 | CMOS | ± 8 | 4.1 | 160 | 8 | low | -40~125 | SO16 |
| 74AHC594PW | 2.0 - 5.5 | CMOS | ± 8 | 4.1 | 160 | 8 | low | -40~125 | TSSOP16 |
| 74AHCT594BQ | 4.5 - 5.5 | TTL | ± 8 | 3.8 | 160 | 8 | low | -40~125 | DHVQFN16 |
| 74AHCT594D | 4.5 - 5.5 | TTL | ± 8 | 3.8 | 160 | 8 | low | -40~125 | SO16 |
| 74AHCT594PW | 4.5 - 5.5 | TTL | ± 8 | 3.8 | 160 | 8 | low | -40~125 | TSSOP16 |
Package
| Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing |
|---|---|---|---|---|---|---|---|
| 74AHC594BQ | 74AHC594BQ,115 (935282022115) |
Active | AHC594 |
DHVQFN16 (SOT763-1) |
SOT763-1 | SOT763-1_115 | |
| 74AHC594D | 74AHC594D,118 (935282018118) |
Active | 74AHC594D |
SO16 (SOT109-1) |
SOT109-1 |
SO-SOJ-REFLOW
SO-SOJ-WAVE WAVE_BG-BD-1 |
SOT109-1_118 |
| 74AHC594PW | 74AHC594PW,118 (935282021118) |
Active | AHC594 |
TSSOP16 (SOT403-1) |
SOT403-1 |
SSOP-TSSOP-VSO-WAVE
|
SOT403-1_118 |
| 74AHCT594BQ | 74AHCT594BQ,115 (935282017115) |
Active | ACT594 |
DHVQFN16 (SOT763-1) |
SOT763-1 | SOT763-1_115 | |
| 74AHCT594D | 74AHCT594D,118 (935282014118) |
Active | 74AHCT594D |
SO16 (SOT109-1) |
SOT109-1 |
SO-SOJ-REFLOW
SO-SOJ-WAVE WAVE_BG-BD-1 |
SOT109-1_118 |
| 74AHCT594PW | 74AHCT594PW,118 (935282016118) |
Active | AHCT594 |
TSSOP16 (SOT403-1) |
SOT403-1 |
SSOP-TSSOP-VSO-WAVE
|
SOT403-1_118 |
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 |
|---|---|---|---|---|---|---|---|
| 74AHC594PW | 74AHC594PW,112 (935282021112) |
Withdrawn / End-of-life | AHC594 |
TSSOP16 (SOT403-1) |
SOT403-1 |
SSOP-TSSOP-VSO-WAVE
|
Not available |
| 74AHCT594DB | 74AHCT594DB,112 (935282015112) |
Obsolete | AHT594 |
SSOP16 (SOT338-1) |
SOT338-1 |
SSOP-TSSOP-VSO-REFLOW
SSOP-TSSOP-VSO-WAVE |
Not available |
| 74AHCT594DB,118 (935282015118) |
Obsolete | AHT594 | Not available |
Environmental information
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
|---|---|---|---|---|
| 74AHC594BQ | 74AHC594BQ,115 | 74AHC594BQ |
|
|
| 74AHC594D | 74AHC594D,118 | 74AHC594D |
|
|
| 74AHC594PW | 74AHC594PW,118 | 74AHC594PW |
|
|
| 74AHCT594BQ | 74AHCT594BQ,115 | 74AHCT594BQ |
|
|
| 74AHCT594D | 74AHCT594D,118 | 74AHCT594D |
|
|
| 74AHCT594PW | 74AHCT594PW,118 | 74AHCT594PW |
|
|
All type numbers in the table below are discontinued.
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
|---|---|---|---|---|
| 74AHC594PW | 74AHC594PW,112 | 74AHC594PW |
|
|
| 74AHCT594DB | 74AHCT594DB,112 | 74AHCT594DB |
|
|
| 74AHCT594DB | 74AHCT594DB,118 | 74AHCT594DB |
|
|
Documentation (21)
| File name | Title | Type | Date |
|---|---|---|---|
| 74AHC_AHCT594 | 8-bit shift register with output register | Data sheet | 2024-03-07 |
| mbc321 | Block diagram: 74AHC594BQ, 74AHC594D, 74AHC594DB, 74AHC594PW, 74AHCT594BQ, 74AHCT594D, 74AHCT594DB, 74AHCT594PW, 74LVC595ABQ, 74LVC595AD, 74LVC595APW | Block diagram | 2009-11-04 |
| SOT763-1 | 3D model for products with SOT763-1 package | Design support | 2019-10-03 |
| SOT109-1 | 3D model for products with SOT109-1 package | Design support | 2020-01-22 |
| SOT403-1 | 3D model for products with SOT403-1 package | Design support | 2020-01-22 |
| ahc594 | ahc594 IBIS model | IBIS model | 2013-04-08 |
| ahct594 | ahct594 IBIS model | IBIS model | 2013-04-08 |
| Nexperia_package_poster | Nexperia package poster | Leaflet | 2020-05-15 |
| DHVQFN16_SOT763-1_mk | plastic, dual in-line compatible thermal enhanced very thin quad flat package; 16 terminals; 0.5 mm pitch; 3.5 mm x 2.5 mm x 0.85 mm body | Marcom graphics | 2017-01-28 |
| SO16_SOT109-1_mk | plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.35 mm body | Marcom graphics | 2017-01-28 |
| TSSOP16_SOT403-1_mk | plastic, thin shrink small outline package; 16 leads; 0.65 mm pitch; 5 mm x 4.4 mm x 1.1 mm body | Marcom graphics | 2017-01-28 |
| SSOP16_SOT338-1_mk | plastic, shrink small outline package; 16 leads; 0.65 mm pitch; 6.2 mm x 5.3 mm x 2 mm body | Marcom graphics | 2017-01-28 |
| SOT763-1 | plastic, leadless dual in-line compatible thermal enhanced very thin quad flat package; 16 terminals; 0.5 mm pitch; 3.5 mm x 2.5 mm x 1 mm body | Package information | 2023-05-11 |
| SOT109-1 | plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.75 mm body | Package information | 2023-11-07 |
| SOT403-1 | plastic, thin shrink small outline package; 16 leads; 5 mm x 4.4 mm x 1.2 mm body | Package information | 2023-11-08 |
| SOT338-1 | plastic, shrink small outline package; 16 leads; 0.65 mm pitch; 6.2 mm x 5.3 mm x 2 mm body | Package information | 2022-06-20 |
| SO-SOJ-REFLOW | Footprint for reflow soldering | Reflow soldering | 2009-10-08 |
| SSOP-TSSOP-VSO-REFLOW | Footprint for reflow soldering | Reflow soldering | 2009-10-08 |
| SO-SOJ-WAVE | Footprint for wave soldering | Wave soldering | 2009-10-08 |
| WAVE_BG-BD-1 | Wave soldering profile | Wave soldering | 2021-09-08 |
| SSOP-TSSOP-VSO-WAVE | Footprint for wave soldering | Wave soldering | 2009-10-08 |
Support
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Models
| File name | Title | Type | Date |
|---|---|---|---|
| SOT763-1 | 3D model for products with SOT763-1 package | Design support | 2019-10-03 |
| SOT109-1 | 3D model for products with SOT109-1 package | Design support | 2020-01-22 |
| SOT403-1 | 3D model for products with SOT403-1 package | Design support | 2020-01-22 |
| ahc594 | ahc594 IBIS model | IBIS model | 2013-04-08 |
| ahct594 | ahct594 IBIS model | IBIS model | 2013-04-08 |
Ordering, pricing & availability
Sample
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