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74LVC821A
General description
The 74LVC821A is a high performance, low power, low voltage Si-gate CMOS device and superior to most advanced CMOS compatible TTL families.
Inputs can be driven from either 3.3 V or 5 V devices. In 3-state operation, outputs can handle 5 V. This feature allows the use of these devices as translators in a mixed 3.3 V and 5 V environment.
The 74LVC821A is a 10-bit D-type flip-flop featuring separate D-type inputs for each flip-flop and 3-state outputs for bus-oriented applications. A clock input (pin CP) and an output enable input (pin OE) are common to all flip-flops. The ten flip-flops will store the state of their individual D-inputs that meet the set-up and hold times requirements on the LOW-to-HIGH CP transition. When pin OE is LOW, the contents of the ten flip-flops is available at the outputs.
When pin OE is HIGH, the outputs go to the high-impedance OFF-state. Operation of the OE inputs does not affect the state of the flip-flops.
Features
- 5 V tolerant inputs and outputs; for interfacing with 5 V logic
- Wide supply voltage range from 1.2 V to 3.6 V
- Inputs accept voltages up to 5.5 V
- CMOS low power consumption
- Direct interface with TTL levels
- Flow-through pin-out architecture
- 10-bit positive edge-triggered register
- Independent register and 3-state buffer operation
- Complies with JEDEC standard JESD8-B
- ESD protection:
- HBM EIA/JESD22-A114-B exceeds 2000 V
- MM EIA/JESD22-A115-A exceeds 200 V.
- Specified from -40 Cel to +85 Cel and -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 |
|---|---|---|---|---|---|---|---|---|
| 74LVC821ABQ | 9352 756 18118 | Volume production | SOT815-1
(DHVQFN24) | Reel Pack, SMD, 13" | Standard Marking | 74LVC821ABQ
| ||
| 74LVC821AD | 74LVC821AD | 9352 625 36112 | Volume production | SOT137-1
(SO24) | Tube | Standard Marking | 74LVC821AD
| week 13, 2005 |
| 74LVC821AD | 74LVC821AD-T | 9352 625 36118 | Volume production | SOT137-1
(SO24) | Reel Pack, SMD, 13" | Standard Marking | 74LVC821AD
| week 13, 2005 |
| 74LVC821ADB | 74LVC821ADB | 9352 625 37112 | Volume production | SOT340-1
(SSOP24) | Tube | Standard Marking | 74LVC821ADB
| week 12, 2005 |
| 74LVC821ADB | 74LVC821ADB-T | 9352 625 37118 | Volume production | SOT340-1
(SSOP24) | Reel Pack, SMD, 13" | Standard Marking | 74LVC821ADB
| week 12, 2005 |
| 74LVC821APW | 74LVC821APW | 9352 625 38112 | Volume production | SOT355-1
(TSSOP24) | Tube | Standard Marking | 74LVC821APW
| week 10, 2005 |
| 74LVC821APW | 74LVC821APW-T | 9352 625 38118 | Volume production | SOT355-1
(TSSOP24) | Reel Pack, SMD, 13" | Standard Marking | 74LVC821APW
| week 10, 2005 |
Products in the above table are all in production. Some variants are discontinued; click here for information on these variants.
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| 74LVC821ABQ | 9352 756 18118 | Order samples | ||||||
| 74LVC821AD | 9352 625 36112 | 0.5600 | not available | |||||
| 74LVC821AD | 9352 625 36118 | 0.5600 | Order samples | |||||
| 74LVC821ADB | 9352 625 37112 | 0.5600 | not available | |||||
| 74LVC821ADB | 9352 625 37118 | 0.5600 | Order samples | |||||
| 74LVC821APW | 9352 625 38112 | 0.5600 | NA | ARROW ELECTRONICS | 876 | 8/27/2008 | Buy online | not available |
| 74LVC821APW | 9352 625 38118 | 0.5600 | Order samples |
Technical documents
Application Notes
Parametrics/similar products
| Type number | Package | Description | Fmax(MHz) | Propagation Delay(ns) | Voltage | Power Dissipation Considerations | Logic Switching Levels | Output Drive Capability |
|---|---|---|---|---|---|---|---|---|
| 74LVC821ABQ | SOT815-1
(DHVQFN24) | 3.3V 10-Bit D-Type Flip-Flop; Positive-Edge Trigger (3-State) | 150 | 5.4 @ 3.3V | 1.2-3.6 | Low Power or Battery Applications | TTL | +/- 24 mA |
| 74LVC821AD | SOT137-1
(SO24) | 3.3V 10-Bit D-Type Flip-Flop; Positive-Edge Trigger (3-State) | 150 | 5.4 @ 3.3V | 1.2-3.6 | Low Power or Battery Applications | TTL | +/- 24 mA |
| 74LVC821ADB | SOT340-1
(SSOP24) | 3.3V 10-Bit D-Type Flip-Flop; Positive-Edge Trigger (3-State) | 150 | 5.4 @ 3.3V | 1.2-3.6 | Low Power or Battery Applications | TTL | +/- 24 mA |
| 74LVC821APW | SOT355-1
(TSSOP24) | 3.3V 10-Bit D-Type Flip-Flop; Positive-Edge Trigger (3-State) | 150 | 5.4 @ 3.3V | 1.2-3.6 | Low Power or Battery Applications | TTL | +/- 24 mA |
Similar products
74LVC821A 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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