Select site:
- English
HEF4894B.pdf
Datasheet
General description
The HEF4894B is a 12-stage serial shift register. It has a storage latch associated with
each stage for strobing data from the serial input (D) to the parallel LED driver outputs
(QP0 to QP11). Data is shifted on positive-going clock (CP) transitions. The data in each
shift register stage is transferred to the storage register when the strobe (STR) input is
HIGH. Data in the storage register appears at the output whenever the output enable (OE)
input signal is HIGH.
Two serial outputs (QS1 and QS2) are available for cascading a number of HEF4894B
devices. Serial data is available at QS1 on positive-going clock edges to allow high-speed
operation in cascaded systems with a fast clock rise time. The same serial data is
available at QS2 on the next negative going clock edge. This is used for cascading
HEF4894B devices when the clock has a slow rise time.
It operates over a recommended VDD power supply range of 3 V to 15 V referenced to VSS
(usually ground). Unused inputs must be connected to VDD, VSS, or another input. It is
also suitable for use over both the industrial (-40 ℃ to +85 ℃) and automotive (-40 ℃ to
+125 ℃) temperature ranges.
Features
- Fully static operation
- 5 V, 10 V, and 15 V parametric ratings
- Standardized symmetrical output characteristics
- Operates across the automotive temperature range from -40 ℃ to +125 ℃
- Complies with JEDEC standard JESD 13-B
Products/packages
| Type number | Orderable part number | Ordering code (12NC) | Product status | Package | Packing | Marking | ECCN |
|---|---|---|---|---|---|---|---|
| HEF4894BP | HEF4894BP,112 | 9351 943 70112 | Volume production | SOT146-1
(DIP20) | Tube | Standard Marking | |
| HEF4894BT | HEF4894BT,112 | 9351 943 80112 | Volume production | SOT163-1
(SO20) | Tube | Standard Marking | |
| HEF4894BT | HEF4894BT,118 | 9351 943 80118 | Volume production | SOT163-1
(SO20) | Tape reel smd | Standard Marking | |
| HEF4894BTT | HEF4894BTT,112 | 9352 831 58112 | Volume production | SOT360-1
(TSSOP20) | Tube | Standard Marking | |
| HEF4894BTT | HEF4894BTT,118 | 9352 831 58118 | Volume production | SOT360-1
(TSSOP20) | Reel Pack, SMD, 13" | Standard Marking |
Quality/reliability/chemical content
| Type number | Orderable part number | Chemical content | RoHS | Leadfree Conversion date | RHF | IRF (FIT) | MTBF (hours) | MSL Lead-free |
|---|---|---|---|---|---|---|---|---|
| HEF4894BP | HEF4894BP,112 | HEF4894BP |
| Always Pb-free | 2,99 | 3,34E+08 | NA | |
| HEF4894BT | HEF4894BT,112 | HEF4894BT |
| week 4, 2004 | 2,99 | 3,34E+08 | 1 | |
| HEF4894BT | HEF4894BT,118 | HEF4894BT |
| week 4, 2004 | 2,99 | 3,34E+08 | 1 | |
| HEF4894BTT | HEF4894BTT,112 | HEF4894BTT |
| Always Pb-free | 2,99 | 3,34E+08 | 1 | |
| HEF4894BTT | HEF4894BTT,118 | HEF4894BTT |
| Always Pb-free | 2,99 | 3,34E+08 | 1 |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Orderable part number | Indicative price/unit($) | Region | Distributor | In stock | Order quantity | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|---|---|
| HEF4894BP | 9351 943 70112 | HEF4894BP,112 | 1.0800 | NA | ARROW ELECTRONICS | 112 | 3/18/2010 | Buy online | Order samples | |
| NA | DIGI-KEY CORPORATION | 278 | 3/18/2010 | Buy online | ||||||
| JAPAN | CHIP ONE STOP | yes | 03/19/2010 | Buy online | ||||||
| HEF4894BT | 9351 943 80112 | HEF4894BT,112 | 1.0800 | NA | ARROW ELECTRONICS | 118 | 3/18/2010 | Buy online | not available | |
| JAPAN | CHIP ONE STOP | no | 03/19/2010 | Buy online | ||||||
| HEF4894BT | 9351 943 80118 | HEF4894BT,118 | 1.0800 | NA | ARROW ELECTRONICS | 118 | 3/18/2010 | Buy online | Order samples | |
| JAPAN | CHIP ONE STOP | no | 03/19/2010 | Buy online | ||||||
| HEF4894BTT | 9352 831 58112 | HEF4894BTT,112 | NA | ARROW ELECTRONICS | 112 | 3/18/2010 | Buy online | not available | ||
| HEF4894BTT | 9352 831 58118 | HEF4894BTT,118 | NA | ARROW ELECTRONICS | 112 | 3/18/2010 | Buy online | Order samples |
Parametrics/similar products
| Type number | Package | Description | Fmax(MHz) | Propagation Delay(ns) | Voltage | No. of Pins | Power Dissipation Considerations | Logic Switching Levels | Output Drive Capability |
|---|---|---|---|---|---|---|---|---|---|
| HEF4894BP | SOT146-1
(DIP20) | 12-Stage Shift-and-Store Register LED Driver | 28 @ 15 V | 45@15V | 4.5-15.5 V | 20 | Low Power or Automotive Applications | CMOS | 20 mA @ 15 V |
| HEF4894BT | SOT163-1
(SO20) | 8-Stage Shift-and-Store Register LED Driver | 28 @ 15 V | 45@15V | 4.5-15.5 V | 16 | Low Power or Automotive Applications | CMOS | -20 mA |
| HEF4894BTT | SOT360-1
(TSSOP20) | 8-Stage Shift-and-Store Register LED Driver | 28 @ 15 V | 45@15V | 4.5-15.5 V | 16 | Low Power or Automotive Applications | CMOS | -20 mA |
Similar products
HEF4894B.pdf
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.