The 74AHC273; 74AHCT273 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 74AHC273; 74AHCT273 has eight edge-triggered, D-type flip-flops with individual D inputs and Q outputs.
The common clock (CP) and master reset (MR) inputs, load and reset (clear) all flip-flops simultaneously.
The state of each D input, one set-up time before the LOW-to-HIGH clock transition, is transferred to the corresponding output (Qn) of the flip-flop.
All outputs will be forced LOW, independent of clock or data inputs, by a LOW on the MR input.
The device is useful for applications where only the true output is required and the clock and master reset are common to all storage elements.


| Name/Description | Modified Date |
|---|---|
| Octal D-type flip-flop with reset; positive-edge trigger (REV 3.0) PDF (104.0 kB) 74AHC_AHCT273 [English] | 13 May 2008 |
| Name/Description | Modified Date |
|---|---|
| Sorting through the low voltage logic maze (REV 1.0) PDF (72.0 kB) AN10156 [English] | 13 Mar 2013 |
| Package lead inductance considerations in high-speed applications (REV 1.0) PDF (43.0 kB) AN212 [English] | 13 Mar 2013 |
| Ground and VCC Bounce of High-Speed Integrated Circuits (REV 1.0) PDF (25.0 kB) AN223 [English] | 13 Mar 2013 |
| Live Insertion Aspects of Philips Logic Families (REV 1.0) PDF (73.0 kB) AN252 [English] | 13 Mar 2013 |
| Pin FMEA for AHC/AHCT family (REV 1.0) PDF (52.0 kB) AN11106 [English] | 04 Nov 2011 |
| Name/Description | Modified Date |
|---|---|
| 電圧レベルシフタ (REV 1.1) PDF (3.1 MB) 75017511_JP [English] | 16 Feb 2015 |
| Voltage translation: How to manage mixed-voltage designs with NXP® level translators (REV 1.0) PDF (2.6 MB) 75017511 [English] | 20 May 2014 |
| Name/Description | Modified Date |
|---|---|
| plastic small outline package; 20 leads; body width 7.5 mm (REV 1.0) PDF (335.0 kB) SOT163-1 [English] | 08 Feb 2016 |
| Name/Description | Modified Date |
|---|---|
| SO20; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering... (REV 2.0) PDF (246.0 kB) SOT163-1_118 [English] | 15 Apr 2013 |
| Name/Description | Modified Date |
|---|---|
| Reflow Soldering Profile (REV 1.0) PDF (34.0 kB) REFLOW_SOLDERING_PROFILE [English] | 30 Sep 2013 |
| Wave Soldering Profile (REV 1.0) PDF (20.0 kB) WAVE_SOLDERING_PROFILE [English] | 30 Sep 2013 |
| Product | Status | Family | Function | VCC (V) | Description | Logic switching levels | Output drive capability (mA) | Package version | tpd (ns) | fmax (MHz) | Power dissipation considerations | Tamb (Cel) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name | No of pins |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 74AHC273D | Active | AHC(T) | D-type flip-flops | 2.0 - 5.5 | positive-edge trigger | CMOS | +/- 8 | SOT163-1 | 4.2 | 165 | low | -40~125 | 85 | 27.3 | 61 | SO20 | 20 |
| Product ID | Package Description | Outline Version | Reflow/Wave Soldering | Packing | Product Status | Part NumberOrdering code(12NC) | Marking | Chemical Content | RoHS / Pb Free / RHF | LeadFree Conversion Date | EFR | IFR(FIT) | MTBF(hour) | MSL | MSL LF |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 74AHC273D | ![]() | SOT163-1 | Reflow_Soldering_Profile
Wave_Soldering_Profile Reflow_Soldering_Profile Wave_Soldering_Profile | Reel 13" Q1/T1 | Active | 74AHC273D,118 (9352 635 92118) | 74AHC273D | 74AHC273D | ![]() ![]() ![]() | week 30, 2004 | 84.9 | 6.62 | 1.51E8 | 1 | 1 |
| Bulk Pack | Active | 74AHC273D,112 (9352 635 92112) | 74AHC273D | 74AHC273D | ![]() ![]() ![]() | week 30, 2004 | 84.9 | 6.62 | 1.51E8 | 1 | 1 |