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74AHC273; 74AHCT273
General description
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.
Features
- Balanced propagation delays
- All inputs have Schmitt-trigger actions
- Inputs accept voltages higher than VCC
- Ideal buffer for MOS microcontroller or memory
- Common clock and master reset
- Related product versions:
- 74AHC377; 74AHCT377 for clock enable version
- 74AHC373; 74AHCT373 for transparent latch version
- 74AHC374; 74AHCT374 for 3-state version
- Input levels:
- For 74AHC273: CMOS level
- For 74AHCT273: TTL level
- ESD protection:
- HBM EIA/JESD22-A114E exceeds 2000 V
- MM EIA/JESD22-A115-A exceeds 200 V
- CDM EIA/JESD22-C101C exceeds 1000 V
- Multiple package options
- Specified from -40 Cel to +85 Cel and from -40 Cel to +125 Cel
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| 74AHC273BQ | 74AHC273BQ-G | 9352 730 49115 | Volume production | SOT764-1
(DHVQFN20) | Reel Pack, SMD, 7" | Standard Marking | 74AHC273BQ
| Always Pb-free |
| 74AHC273D | 74AHC273D | 9352 635 92112 | Volume production | SOT163-1
(SO20) | Tube | Standard Marking | 74AHC273D
| week 30, 2004 |
| 74AHC273D | 74AHC273D-T | 9352 635 92118 | Volume production | SOT163-1
(SO20) | Tape reel smd | Standard Marking | 74AHC273D
| week 30, 2004 |
| 74AHC273PW | 74AHC273PW | 9352 635 93112 | Volume production | SOT360-1
(TSSOP20) | Tube | Standard Marking | 74AHC273PW
| week 5, 2005 |
| 74AHC273PW | 74AHC273PW-T | 9352 635 93118 | Volume production | SOT360-1
(TSSOP20) | Reel Pack, SMD, 13" | Standard Marking | 74AHC273PW
| week 5, 2005 |
| 74AHCT273BQ | 74AHCT273BQ-G | 9352 737 35115 | Volume production | SOT764-1
(DHVQFN20) | Reel Pack, SMD, 7" | Standard Marking | 74AHCT273BQ
| Always Pb-free |
| 74AHCT273D | 74AHCT273D | 9352 635 90112 | Volume production | SOT163-1
(SO20) | Tube | Standard Marking | 74AHCT273D
| week 30, 2004 |
| 74AHCT273D | 74AHCT273D-T | 9352 635 90118 | Volume production | SOT163-1
(SO20) | Tape reel smd | Standard Marking | 74AHCT273D
| week 30, 2004 |
| 74AHCT273PW | 74AHCT273PW | 9352 635 91112 | Volume production | SOT360-1
(TSSOP20) | Tube | Standard Marking | 74AHCT273PW
| week 7, 2005 |
| 74AHCT273PW | 74AHCT273PW-T | 9352 635 91118 | Volume production | SOT360-1
(TSSOP20) | Reel Pack, SMD, 13" | Standard Marking | 74AHCT273PW
| week 7, 2005 |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| 74AHC273BQ | 9352 730 49115 | 0.3400 | NA | DIGI-KEY CORPORATION | 3,000 | 9/3/2008 | Buy online | Order samples |
| NA | DIGI-KEY CORPORATION | 2,350 | 9/3/2008 | Buy online | ||||
| 74AHC273D | 9352 635 92112 | 0.2500 | not available | |||||
| 74AHC273D | 9352 635 92118 | 0.2500 | Order samples | |||||
| 74AHC273PW | 9352 635 93112 | 0.2500 | Order samples | |||||
| 74AHC273PW | 9352 635 93118 | 0.2500 | Order samples | |||||
| 74AHCT273BQ | 9352 737 35115 | 0.3800 | NA | DIGI-KEY CORPORATION | 6,000 | 9/3/2008 | Buy online | Order samples |
| 74AHCT273D | 9352 635 90112 | 0.2500 | not available | |||||
| 74AHCT273D | 9352 635 90118 | 0.2500 | NA | ARROW ELECTRONICS | 2,000 | 9/2/2008 | Buy online | Order samples |
| 74AHCT273PW | 9352 635 91112 | 0.2500 | not available | |||||
| 74AHCT273PW | 9352 635 91118 | 0.2500 | ASIA | WPI | 12,500 | 09/03/2008 | Buy online | Order samples |
| NA | AVNET ELECTRONICS MARKETING | 70,000 | 9/2/2008 | Buy online |
Parametrics/similar products
| Type number | Package | Description | Fmax(MHz) | Propagation Delay(ns) | Voltage | Power Dissipation Considerations | Logic Switching Levels | Output Drive Capability |
|---|---|---|---|---|---|---|---|---|
| 74AHC273BQ | SOT764-1
(DHVQFN20) | Octal D-Type Flip-Flop with Reset; Positive-Edge Trigger | 165@ 5 V | 4.2@5V | 2.0-5.5 V | Low Power or Battery Applications | CMOS | +/- 8 mA |
| 74AHC273D | SOT163-1
(SO20) | Octal D-Type Flip-Flop with Reset; Positive-Edge Trigger | 165@ 5 V | 4.2@5V | 2.0-5.5 V | Low Power or Battery Applications | CMOS | +/- 8 mA |
| 74AHC273PW | SOT360-1
(TSSOP20) | Octal D-Type Flip-Flop with Reset; Positive-Edge Trigger | 165@ 5 V | 4.2@5V | 2.0-5.5 V | Low Power or Battery Applications | CMOS | +/- 8 mA |
| 74AHCT273BQ | SOT764-1
(DHVQFN20) | D-Type Flip-Flop with Reset; Positive-Edge Trigger; TTL Enabled | 120 | 4 | 4.5-5.5 V | Low Power | TTL | +/- 8 mA |
| 74AHCT273D | SOT163-1
(SO20) | D-Type Flip-Flop with Reset; Positive-Edge Trigger; TTL Enabled | 120 | 4 | 4.5-5.5 V | Low Power | TTL | +/- 8 mA |
| 74AHCT273PW | SOT360-1
(TSSOP20) | D-Type Flip-Flop with Reset; Positive-Edge Trigger; TTL Enabled | 120 | 4 | 4.5-5.5 V | Low Power | TTL | +/- 8 mA |
Similar products
74AHC273; 74AHCT273 links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.
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