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Click here for more information74ALVCH16821DL
20-bit bus-interface D-type flip-flop; positive-edge trigger; 3-state
The 74ALVCH16821 has two 10-bit, edge triggered registers, with each register coupled to a 3-state output buffer. The two sections of each register are controlled independently by the clock (nCP) and output enable nOE control gates.
Each register is fully edge triggered. The state of each nDn input, one set-up time before the LOW-to-HIGH clock transition, is transferred to the corresponding flip-flop’s nQn output.
When nOE is LOW, the data in the register appears at the outputs. When nOE is HIGH, the outputs are in high impedance OFF state. Operation of the nOE input does not affect the state of the flip-flops.
The 74ALVCH16821 has active bus hold circuitry which is provided to hold unused or floating data inputs at a valid logic level. This feature eliminates the need for external pull-up or pull-down resistors.
Features and benefits
Wide supply voltage range from 1.2 V to 3.6 V
CMOS low-power consumption
Direct interface with TTL levels
Current drive ± 24 mA at 3.0 V
MULTIBYTE™ flow-through standard pin-out architecture
Low inductance multiple VCC and GND pins for minimum noise and ground bounce
Output drive capability 50 Ω transmission lines at 85°C
All data inputs have bushold
Complies with JEDEC standard no. 8-1A
Complies with JEDEC standards:
JESD8-5 (2.3 V to 2.7 V)
JESD8B/JESD36 (2.7 V to 3.6 V)
ESD protection:
- HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V
- CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V
- Specified from -40 °C to +85 °C
Parametrics
| Type number | Package name |
|---|---|
| 74ALVCH16821DL | SSOP56 |
Package
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 |
|---|---|---|---|---|---|---|---|
| 74ALVCH16821DL | 74ALVCH16821DL,112 (935259000112) |
Obsolete | ALVCH16821 Standard Procedure Standard Procedure |
SSOP56 (SOT371-1) |
SOT371-1 |
SSOP-TSSOP-VSO-REFLOW
SSOP-TSSOP-VSO-WAVE |
Not available |
| 74ALVCH16821DL,118 (935259000118) |
Obsolete | ALVCH16821 Standard Procedure Standard Procedure | Not available | ||||
| 74ALVCH16821DL,512 (935259000512) |
Obsolete | ALVCH16821 Standard Procedure Standard Procedure | Not available | ||||
| 74ALVCH16821DL,518 (935259000518) |
Obsolete | ALVCH16821 Standard Procedure Standard Procedure | Not available |
Environmental information
All type numbers in the table below are discontinued.
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
|---|---|---|---|---|
| 74ALVCH16821DL | 74ALVCH16821DL,112 | 74ALVCH16821DL |
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| 74ALVCH16821DL | 74ALVCH16821DL,118 | 74ALVCH16821DL |
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| 74ALVCH16821DL | 74ALVCH16821DL,512 | 74ALVCH16821DL |
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| 74ALVCH16821DL | 74ALVCH16821DL,518 | 74ALVCH16821DL |
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Series
Documentation (6)
| File name | Title | Type | Date |
|---|---|---|---|
| 74ALVCH16821 | 20-bit bus-interface D-type flip-flop; positive-edge trigger; 3-state | Data sheet | 2024-07-09 |
| alvch16821 | alvch16821 IBIS model | IBIS model | 2013-04-08 |
| Nexperia_package_poster | Nexperia package poster | Leaflet | 2020-05-15 |
| SOT371-1 | plastic, shrink small outline package; 56 leads; 0.635 mm pitch; 18.45 mm x 7.5 mm x 2.8 mm body | Package information | 2020-04-21 |
| SSOP-TSSOP-VSO-REFLOW | Footprint for reflow soldering | Reflow soldering | 2009-10-08 |
| SSOP-TSSOP-VSO-WAVE | Footprint for wave soldering | Wave soldering | 2009-10-08 |
Support
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Models
| File name | Title | Type | Date |
|---|---|---|---|
| alvch16821 | alvch16821 IBIS model | IBIS model | 2013-04-08 |
How does it work?
The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.
74ALVCH16821DL
20-bit bus-interface D-type flip-flop; positive-edge trigger; 3-state
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