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74AHC74; 74AHCT74
General description
The 74AHC74; 74AHCT74 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 74AHC74; 74AHCT74 is a dual positive-edge triggered, D-type flip-flop with individual data inputs (D), clock inputs (CP), set inputs (SD) and reset inputs (RD). It also has complementary outputs (Q and Q).
The set and reset are asynchronous active LOW inputs that operate independent of the clock input. Information on the data input is transferred to the Q output on the LOW to HIGH transition of the clock pulse. The data inputs must be stable one set-up time prior to the LOW to HIGH clock transition for predictable operation.
Schmitt-trigger action in the clock input makes the circuit highly tolerant to slower clock rise and fall times.
Features
- Balanced propagation delays
- All inputs have Schmitt-trigger actions
- Inputs accept voltages higher than VCC
- Input levels:
- For 74AHC74: CMOS level
- For 74AHCT74: 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 |
|---|---|---|---|---|---|---|---|---|
| 74AHC74BQ | 74AHC74BQ-G | 9352 788 07115 | Volume production | SOT762-1
(DHVQFN14) | Reel Pack, SMD, 7" | Standard Marking | 74AHC74BQ
| Always Pb-free |
| 74AHC74D | 74AHC74D | 9352 630 78112 | Volume production | SOT108-1
(SO14) | Tube | Standard Marking | 74AHC74D
| week 32, 2004 |
| 74AHC74D | 74AHC74D-T | 9352 630 78118 | Volume production | SOT108-1
(SO14) | Reel Pack, SMD, 13" | Standard Marking | 74AHC74D
| week 32, 2004 |
| 74AHC74PW | 74AHC74PW | 9352 630 79112 | Volume production | SOT402-1
(TSSOP14) | Tube | Standard Marking | 74AHC74PW
| week 10, 2005 |
| 74AHC74PW | 74AHC74PW-T | 9352 630 79118 | Volume production | SOT402-1
(TSSOP14) | Reel Pack, SMD, 13" | Standard Marking | 74AHC74PW
| week 10, 2005 |
| 74AHCT74BQ | 74AHCT74BQ-G | 9352 788 09115 | Volume production | SOT762-1
(DHVQFN14) | Reel Pack, SMD, 7" | Standard Marking | 74AHCT74BQ
| Always Pb-free |
| 74AHCT74D | 74AHCT74D | 9352 630 76112 | Volume production | SOT108-1
(SO14) | Tube | Standard Marking | 74AHCT74D
| week 32, 2004 |
| 74AHCT74D | 74AHCT74D-T | 9352 630 76118 | Volume production | SOT108-1
(SO14) | Reel Pack, SMD, 13" | Standard Marking | 74AHCT74D
| week 32, 2004 |
| 74AHCT74PW | 74AHCT74PW | 9352 630 77112 | Volume production | SOT402-1
(TSSOP14) | Tube | Standard Marking | 74AHCT74PW
| week 10, 2005 |
| 74AHCT74PW | 74AHCT74PW-T | 9352 630 77118 | Volume production | SOT402-1
(TSSOP14) | Reel Pack, SMD, 13" | Standard Marking | 74AHCT74PW
| week 10, 2005 |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| 74AHC74BQ | 9352 788 07115 | 0.1900 | Order samples | |||||
| 74AHC74D | 9352 630 78112 | 0.1500 | NA | ARROW ELECTRONICS | 3,648 | 9/4/2008 | Buy online | not available |
| 74AHC74D | 9352 630 78118 | 0.1500 | ASIA | WPI | 25,000 | 09/05/2008 | Buy online | Order samples |
| NA | ARROW ELECTRONICS | 5,000 | 9/4/2008 | Buy online | ||||
| NA | AVNET ELECTRONICS MARKETING | 2,500 | 9/5/2008 | Buy online | ||||
| 74AHC74PW | 9352 630 79112 | 0.1500 | NA | ARROW ELECTRONICS | 1,620 | 9/4/2008 | Buy online | not available |
| 74AHC74PW | 9352 630 79118 | 0.1500 | Order samples | |||||
| 74AHCT74BQ | 9352 788 09115 | 0.1900 | Order samples | |||||
| 74AHCT74D | 9352 630 76112 | 0.1600 | Order samples | |||||
| 74AHCT74D | 9352 630 76118 | 0.1600 | Order samples | |||||
| 74AHCT74PW | 9352 630 77112 | 0.1600 | not available | |||||
| 74AHCT74PW | 9352 630 77118 | 0.1600 | ASIA | WPI | 20,000 | 09/05/2008 | Buy online | Order samples |
Parametrics/similar products
| Type number | Package | Description | Fmax(MHz) | Propagation Delay(ns) | Voltage | Power Dissipation Considerations | Logic Switching Levels | Output Drive Capability |
|---|---|---|---|---|---|---|---|---|
| 74AHC74BQ | SOT762-1
(DHVQFN14) | Dual D-Type Flip-Flop with Set and Reset; Positive-Edge Trigger | 170 @ 5 V | 3.7@5 V | 2.0-5.5 V | Low Power or Battery Applications | CMOS | +/- 8 mA |
| 74AHC74D | SOT108-1
(SO14) | Dual D-Type Flip-Flop with Set and Reset; Positive-Edge Trigger | 170 @ 5 V | 3.7@5 V | 2.0-5.5 V | Low Power or Battery Applications | CMOS | +/- 8 mA |
| 74AHC74PW | SOT402-1
(TSSOP14) | Dual D-Type Flip-Flop with Set and Reset; Positive-Edge Trigger | 170 @ 5 V | 3.7@5 V | 2.0-5.5 V | Low Power or Battery Applications | CMOS | +/- 8 mA |
| 74AHCT74BQ | SOT762-1
(DHVQFN14) | Dual D-Type Flip-Flop with Set and Reset; Positive-Edge Trigger; TTL Enabled | 160 | 3.3 | 4.5-5.5 V | Low Power | TTL | +/- 8 mA |
| 74AHCT74D | SOT108-1
(SO14) | Dual D-Type Flip-Flop with Set and Reset; Positive-Edge Trigger; TTL Enabled | 160 | 3.3 | 4.5-5.5 V | Low Power | TTL | +/- 8 mA |
| 74AHCT74PW | SOT402-1
(TSSOP14) | Dual D-Type Flip-Flop with Set and Reset; Positive-Edge Trigger; TTL Enabled | 160 | 3.3 | 4.5-5.5 V | Low Power | TTL | +/- 8 mA |
Similar products
74AHC74; 74AHCT74 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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