The HEF4528B is a dual retriggerable-resettable monostable multivibrator. Each multivibrator has an active LOW input (nA), and active HIGH input (nB), an active LOW clear direct input (nCD), an output (nQ) and its complement (nQ), and two external timing component connecting pins (nCEXT, always connected to ground, and nREXT/CEXT).
An external timing capacitor (CEXT) must be connected between nCEXT and nREXT/CEXT and an external resistor (REXT) must be connected between nREXT/CEXT and VDD. The output pulse duration is determined by the external timing components CEXT and REXT. A HIGH-to-LOW transition on nA when nB is LOW or a LOW-to-HIGH transition on nB when nA is HIGH produces a positive pulse (LOW-HIGH-LOW) on nQ and a negative pulse (HIGH-LOW-HIGH) on nQ if the nCD is HIGH. A LOW on nCD forces nQ LOW, nQ HIGH and inhibits any further pulses until nCD is HIGH.
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 the full industrial (-40 C to +85 C) temperature range.
| Type number | Orderable part number | Ordering code (12NC) | Product status | Package | Packing | Marking | ECCN |
|---|---|---|---|---|---|---|---|
| HEC4528BT | HEC4528BT,112 | 9352 261 10112 | Volume production | SOT109-1
(SO16) | Tube | Standard Marking | |
| HEC4528BT | HEC4528BT,118 | 9352 261 10118 | Volume production | SOT109-1
(SO16) | Reel Pack, SMD, 13" | Standard Marking | |
| HEF4528BP | HEF4528BP,652 | 9333 243 30652 | Volume production | SOT38-4
(DIP16) | Bulk Pack, CECC | Standard Marking | |
| HEF4528BT | HEF4528BT,652 | 9333 732 60652 | Volume production | SOT109-1
(SO16) | Bulk Pack, CECC | Standard Marking | |
| HEF4528BT | HEF4528BT,653 | 9333 732 60653 | Volume production | SOT109-1
(SO16) | Reel Pack, SMD, 13", CECC | Standard Marking |
| Type number | Orderable part number | Chemical content | RoHS | Leadfree Conversion date | RHF | IRF (FIT) | MTBF (hours) | MSL Lead-free |
|---|---|---|---|---|---|---|---|---|
| HEC4528BT | HEC4528BT,112 | HEC4528BT |
| week 6, 2004 | ||||
| HEC4528BT | HEC4528BT,118 | HEC4528BT |
| week 6, 2004 | ||||
| HEF4528BP | HEF4528BP,652 | HEF4528BP |
| Always Pb-free | 2,99 | 3,34E+08 | NA | |
| HEF4528BT | HEF4528BT,652 | HEF4528BT |
| week 6, 2004 | 2,99 | 3,34E+08 | 1 | |
| HEF4528BT | HEF4528BT,653 | HEF4528BT |
| week 6, 2004 | 2,99 | 3,34E+08 | 1 |
| Type number | Ordering code(12NC) | Orderable part number | Indicative price/unit($) | Region | Distributor | In stock | Order quantity | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|---|---|
| HEC4528BT | 9352 261 10112 | HEC4528BT,112 | 0.4800 | NA | ARROW ELECTRONICS | 118 | 3/18/2010 | Buy online | not available | |
| JAPAN | CHIP ONE STOP | no | 03/19/2010 | Buy online | ||||||
| HEC4528BT | 9352 261 10118 | HEC4528BT,118 | 0.4800 | NA | ARROW ELECTRONICS | 118 | 3/18/2010 | Buy online | not available | |
| JAPAN | CHIP ONE STOP | no | 03/19/2010 | Buy online | ||||||
| HEF4528BP | 9333 243 30652 | HEF4528BP,652 | 0.3200 | NA | NEWARK | 1,095 | 3/18/2010 | Buy online | Order samples | |
| NA | ARROW ELECTRONICS | 652 | 3/18/2010 | Buy online | ||||||
| EU | FARNELL | 1,219 | 3/18/2010 | Buy online | ||||||
| NA | DIGI-KEY CORPORATION | 1,844 | 3/18/2010 | Buy online | ||||||
| ASIA | WPI | 250 | 25 | 03/18/2010 | Buy online | |||||
| HEF4528BT | 9333 732 60652 | HEF4528BT,652 | 0.2900 | NA | NEWARK | 504 | 3/18/2010 | Buy online | not available | |
| NA | ARROW ELECTRONICS | 653 | 3/18/2010 | Buy online | ||||||
| EU | FARNELL | 1,669 | 3/18/2010 | Buy online | ||||||
| NA | AVNET ELECTRONICS MARKETING | 800 | 3/18/2010 | Buy online | ||||||
| JAPAN | CHIP ONE STOP | no | 03/19/2010 | Buy online | ||||||
| HEF4528BT | 9333 732 60653 | HEF4528BT,653 | 0.2900 | NA | NEWARK | 504 | 3/18/2010 | Buy online | Order samples | |
| NA | ARROW ELECTRONICS | 653 | 3/18/2010 | Buy online | ||||||
| EU | FARNELL | 1,669 | 3/18/2010 | Buy online | ||||||
| JAPAN | CHIP ONE STOP | yes | 03/19/2010 | Buy online |
| Type number | Package | Description | Propagation Delay(ns) | Voltage | No. of Pins | Power Dissipation Considerations | Logic Switching Levels | Output Drive Capability |
|---|---|---|---|---|---|---|---|---|
| HEF4528BP | SOT38-4
(DIP16) | Dual Retriggerable Monostable Multivibrator with Reset | 40@15V | 4.5-15.5 V | 16 | Low Power or Automotive Applications | CMOS | +/- 2.4 mA @ 15 V |
| HEF4528BT | SOT109-1
(SO16) | Dual Retriggerable Monostable Multivibrator with Reset | 40@15V | 4.5-15.5 V | 16 | Low Power or Automotive Applications | CMOS | +/- 2.4 mA @ 15 V |
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