Select site:
- English
HEF4020B
Datasheet
General description
The HEF4020B is a 14-stage binary ripple counter with a clock input (CP), an overriding asynchronous master reset input (MR) and twelve fully buffered outputs (O0 , O3 to O13 ). The counter advances on the HIGH to LOW transition of CP. A HIGH on MR clears all counter stages and forces all outputs LOW, independent of the state of CP. Each counter stage is a static toggle flip-flop. A feature of the HEF4020B is: high speed (typ. 35 MHz at VDD = 15 V).
Features
- Pin compatibility to the PCA82C200 stand-alone CAN controller
- Electrical compatibility to the PCA82C200 stand-alone CAN controller
- Software-compatibility mode to the PCA82C200 (BasicCAN mode is default)
- Extended receive buffer (64-byte FIFO)
- CAN 2.0B protocol compatibility (extended frame passive in PCA82C200 compatibility mode)
- Supports 11-bit identifier as well as 29-bit identifier
- Bit rates up to 1 Mbits/s
- PeliCAN mode extensions:
- Error counters with read/write access
- Programmable error warning limit
- Last error code register
- Error interrupt for each CAN-bus error
- Arbitration lost interrupt with detailed bit position
- Single-shot transmission (no re-transmission)
- Listen only mode (no acknowledge, no active error flags)
- Hot plugging support (software driven bit rate detection)
- Acceptance filter extension (4-byte code, 4-byte mask)
- Reception of ?own? messages (self reception request) - 24 MHz clock frequency
- Interfaces to a variety of microprocessors
- Programmable CAN output driver configuration
- Extended ambient temperature range (-40 to +125 °C).
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| HEF4020BP | HEF4020BPN | 9332 827 10652 | Volume production | SOT38-4
(DIP16) | Bulk Pack, CECC | Standard Marking | HEF4020BP
| Always Pb-free |
| HEF4020BT | HEF4020BTD | 9333 727 30652 | Volume production | SOT109-1
(SO16) | Bulk Pack, CECC | Standard Marking | HEF4020BT
| week 4, 2004 |
| HEF4020BT | HEF4020BTD-T | 9333 727 30653 | Volume production | SOT109-1
(SO16) | Reel Pack, SMD, 13", CECC | Standard Marking | HEF4020BT
| week 4, 2004 |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| HEF4020BP | 9332 827 10652 | 0.3000 | NA | ARROW ELECTRONICS | 1,300 | 10/8/2008 | Buy online | Order samples |
| NA | DIGI-KEY CORPORATION | 1,379 | 10/9/2008 | Buy online | ||||
| NA | FUTURE ELECTRONICS- NORTH AMER | 1,950 | 10/8/2008 | Buy online | ||||
| HEF4020BT | 9333 727 30652 | 0.3000 | NA | DIGI-KEY CORPORATION | 7,722 | 10/9/2008 | Buy online | not available |
| HEF4020BT | 9333 727 30653 | 0.3000 | NA | MOUSER ELECTRONICS | 2,350 | 10/9/2008 | 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 |
|---|---|---|---|---|---|---|---|---|---|
| HEF4020BP | SOT38-4
(DIP16) | 14-Stage Binary Counter | 35 @ 15 V | 35@15V | 4.5-15.5 | 16 | Low Power or Automotive Applications | CMOS | +/- 2.4 mA @ 15 V |
| HEF4020BT | SOT109-1
(SO16) | 14-Stage Binary Counter | 35 @ 15 V | 35@15V | 4.5-15.5 | 16 | Low Power or Automotive Applications | CMOS | +/- 2.4 mA @ 15 V |
Similar products
HEF4020B 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.
Disclaimer
The information published on product information pages of the www.nxp.com or www.semiconductors.com websites is an extract from product data sheets and is for information purposes only. For detailed information please check the most recent version of the relevant product data sheet as published on these websites. In the event of any conflict between product information pages and data sheets or deviations from information provided in the product data sheets on these product information pages, the information provided in the product data sheets shall prevail.
The product status of the product(s) described in the product data sheet may have changed since publication of the data sheet and therefore information in datasheets on product status may be outdated. The latest information on product status is published on the product information pages of the above-mentioned websites.
As from October 1st, 2006 Philips Semiconductors has a new trade name - NXP Semiconductors, which will be used in future data sheets together with new contact details. In data sheets where the previous Philips references remain, please use the new links as shown below.
- http://www.philips.semiconductors.com use http://www.nxp.com
- http://www.semiconductors.philips.com use http://www.nxp.com (Internet)
- sales.addresses@www.semiconductors.philips.com use salesaddresses@nxp.com (e-mail)
The copyright notice at the bottom of each page (or elsewhere in the document, depending on the version)
- © Koninklijke Philips Electronics N.V. (year). All rights reserved -
is replaced with:
- © NXP B.V. (year). All rights reserved.-
If you have any questions related to the data sheet, please contact our nearest sales office via e-mail or phone (details via salesaddresses@nxp.com). Thank you for your cooperation and understanding.