HEF4894BT: 12-stage shift-and-store register LED driver
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.
HEF4894BT: Product Block Diagram
SOT163-1
Data Sheets (1)
| Name/Description | Modified Date |
|---|---|
| 12-stage shift-and-store register LED driver (REV 9.0) PDF (190.0 kB) HEF4894B [English] | 18 Apr 2016 |
Application Notes (1)
| Name/Description | Modified Date |
|---|---|
| Pin FMEA HEF4000 family (REV 2.0) PDF (30.0 kB) AN11051 [English] | 21 Aug 2015 |
Brochures (2)
| Name/Description | Modified Date |
|---|---|
| 電圧レベルシフタ (REV 1.1) PDF (3.1 MB) 75017511_JP [English] | 16 Feb 2015 |
| Voltage translation: How to manage mixed-voltage designs with NXP® level translators (REV 1.0) PDF (2.6 MB) 75017511 [English] | 20 May 2014 |
Package Information (1)
| Name/Description | Modified Date |
|---|---|
| plastic small outline package; 20 leads; body width 7.5 mm (REV 1.0) PDF (335.0 kB) SOT163-1 [English] | 08 Feb 2016 |
Packing (1)
| Name/Description | Modified Date |
|---|---|
| SO20; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering... (REV 2.0) PDF (246.0 kB) SOT163-1_118 [English] | 15 Apr 2013 |
Supporting Information (2)
| Name/Description | Modified Date |
|---|---|
| Reflow Soldering Profile (REV 1.0) PDF (34.0 kB) REFLOW_SOLDERING_PROFILE [English] | 30 Sep 2013 |
| Wave Soldering Profile (REV 1.0) PDF (20.0 kB) WAVE_SOLDERING_PROFILE [English] | 30 Sep 2013 |
Ordering Information
| Product | Status | Family | VCC (V) | Function | Logic switching levels | Description | Package version | Output drive capability (mA) | tpd (ns) | fmax (MHz) | No of bits | Power dissipation considerations | Tamb (Cel) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name | No of pins |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HEF4894BT | Active | HEF4000B | 4.5 - 15.5 | Shift registers | CMOS | 12-bit serial-in/serial or parallel-out shift register with output register LED driver (3-state) | SOT163-1 | -20 | 45 | 28 | 12 | medium | -40~85 | 77 | 20.0 | 53 | SO20 | 20 |
| HEF4894BT/N | No Longer Manufactured | 4.5 - 15.5 | CMOS | -20 | 45 | 28 | 12 | medium | -40~85 | 77 | 20.0 | 53 | SO20 |
Package Information
| Product ID | Package Description | Outline Version | Reflow/Wave Soldering | Packing | Product Status | Part NumberOrdering code(12NC) | Marking | Chemical Content | RoHS / Pb Free / RHF | LeadFree Conversion Date | EFR | IFR(FIT) | MTBF(hour) | MSL | MSL LF |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HEF4894BT | | SOT163-1 | Reflow_Soldering_Profile
Wave_Soldering_Profile Reflow_Soldering_Profile Wave_Soldering_Profile | Reel 13" Q1/T1 | Active | HEF4894BT,118 (9351 943 80118) | HEF4894BT | HEF4894BT |    | week 4, 2004 | 75.3 | 2.99 | 3.34E8 | 1 | 1 |
| Bulk Pack | Active | HEF4894BT,112 (9351 943 80112) | HEF4894BT | HEF4894BT | | week 4, 2004 | 75.3 | 2.99 | 3.34E8 | 1 | 1 |
- 12-stage shift-and-store register LED driver HEF4894BTT
- Pin FMEA HEF4000 family HEF4894B_Q100
- 電圧レベルシフタ 74AVC16245DGG-Q100
- Voltage translation: How to manage mixed-voltage designs with NXP® level translators 74AVC16245DGG-Q100
- SOT163-1 LPC1112FD20
- Reflow_Soldering_Profile Wave_Soldering_Profile LPC1112FD20
- Reflow_Soldering_Profile Wave_Soldering_Profile LPC1112FD20
- Reel 13" Q1/T1 LPC812M101JD20
- HEF4894B
- SA615
