The HEF4528B is a dual retriggerable-resettable monostable multivibrator. Each multivibrator has an active LOW input (I0 ), and active HIGH input (I1 ), an active LOW clear direct input (CD ), an output (O) and its complement (O), and two pins for connecting the external timing components (CTC¹)RCTC).
An external timing capacitor (Ct) must be connected between CTC and RCTC and an external resistor (Rt) must be connected between RCTC and VDD . The duration of the output pulse is determined by the external timing components Ct and Rt.
A HIGH to LOW transition on I0 when I1 is LOW or a LOW to HIGH transition on I1 when I0 is HIGH produces a positive pulse (LOW-HIGH-LOW) and O and a negative pulse (HIGH-LOW-HIGH) on O if the CD is HIGH. A LOW
¹) Always connected to ground.
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| HEC4528BT | HEC4528BT | 9352 261 10112 | Volume production | SOT109-1
(SO16) | Tube | Standard Marking | HEC4528BT
| week 6, 2004 |
| HEC4528BT | HEC4528BT-T | 9352 261 10118 | Volume production | SOT109-1
(SO16) | Reel Pack, SMD, 13" | Standard Marking | HEC4528BT
| week 6, 2004 |
| HEF4528BP | HEF4528BPN | 9333 243 30652 | Volume production | SOT38-4
(DIP16) | Bulk Pack, CECC | Standard Marking | HEF4528BP
| Always Pb-free |
| HEF4528BT | HEF4528BTD | 9333 732 60652 | Volume production | SOT109-1
(SO16) | Bulk Pack, CECC | Standard Marking | HEF4528BT
| week 6, 2004 |
| HEF4528BT | HEF4528BTD-T | 9333 732 60653 | Volume production | SOT109-1
(SO16) | Reel Pack, SMD, 13", CECC | Standard Marking | HEF4528BT
| week 6, 2004 |
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Order quantity | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|---|
| HEC4528BT | 9352 261 10112 | 0.4800 | not available | ||||||
| HEC4528BT | 9352 261 10118 | 0.4800 | Order samples | ||||||
| HEF4528BP | 9333 243 30652 | 0.3200 | ASIA | WPI | 250 | 25 | 01/07/2009 | Buy online | Order samples |
| NA | ARROW ELECTRONICS | 1,865 | 1/6/2009 | Buy online | |||||
| NA | DIGI-KEY CORPORATION | 607 | 1/6/2009 | Buy online | |||||
| HEF4528BT | 9333 732 60652 | 0.2900 | NA | DIGI-KEY CORPORATION | 347 | 1/6/2009 | Buy online | not available | |
| HEF4528BT | 9333 732 60653 | 0.2900 | NA | MOUSER ELECTRONICS | 1,413 | 1/7/2009 | Buy online | Order samples | |
| ASIA | WPI | 25,000 | 2500 | 01/07/2009 | 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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