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HEF4044B
Datasheet
General description
The HEF4044B is a quadruple R/S latch with 3-state outputs with a common output enable input (EO). Each latch has an active LOW set input (S0 to S3 ), an active LOW reset input (R0 to R3 ) and an active HIGH 3-state output (O0 to O3 ).
When EO is HIGH, the state of the latch output (On ) can be determined from the function table below. When EO is LOW, the latch outputs are in the high impedance OFF-state. EO does not affect the state of the latch.
The high impedance off-state feature allows common busing of the outputs.
Features
- Direct interface to C-MOS, TTL, etc.
- High-speed switching
- No secondary breakdown.
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| HEF4044BP | HEF4044BPN | 9332 966 80652 | Volume production | SOT38-4
(DIP16) | Bulk Pack, CECC | Standard Marking | HEF4044BP
| Always Pb-free |
| HEF4044BT | HEF4044BTD | 9333 728 90652 | Volume production | SOT109-1
(SO16) | Bulk Pack, CECC | Standard Marking | HEF4044BT
| week 6, 2004 |
| HEF4044BT | HEF4044BTD-T | 9333 728 90653 | Volume production | SOT109-1
(SO16) | Reel Pack, SMD, 13", CECC | Standard Marking | HEF4044BT
| week 6, 2004 |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| HEF4044BP | 9332 966 80652 | 0.2500 | NA | ARROW ELECTRONICS | 1,812 | 8/5/2008 | Buy online | Order samples |
| HEF4044BT | 9333 728 90652 | 0.2400 | NA | DIGI-KEY CORPORATION | 322 | 8/5/2008 | Buy online | Order samples |
| NA | FUTURE ELECTRONICS | 482 | 8/5/2008 | Buy online | ||||
| HEF4044BT | 9333 728 90653 | 0.2400 | NA | MOUSER ELECTRONICS | 2,412 | 8/4/2008 | Buy online | Order samples |
Applications
- Relay, high-speed and line transformer drivers.
Related applications
50-60 Hz CRT integrated DTV (TV210D)
Mid-range integrated DTV (TV810)
Parametrics/similar products
| Type number | Package | Description | Propagation Delay(ns) | Voltage | No. of Pins | Power Dissipation Considerations | Logic Switching Levels | Output Drive Capability |
|---|---|---|---|---|---|---|---|---|
| HEF4044BP | SOT38-4
(DIP16) | Quad R/S Latch with Active LOW Set and Reset Inputs (3-State) | 30@15V | 4.5-15.5 V | 16 | Low Power or Automotive Applications | CMOS | +/- 2.4 mA |
| HEF4044BT | SOT109-1
(SO16) | Quad R/S Latch with Active LOW Set and Reset Inputs (3-State) | 30@15V | 4.5-15.5 V | 16 | Low Power or Automotive Applications | CMOS | +/- 2.4 mA |
Similar products
HEF4044B 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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