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HEF4585BT,652
Logic Comparator -40°C ~ 85°C Active High A<B, A=B, A>B 16-SOIC (0.154", 3.90mm Width) Tube 4000B Magnitude Comparator
- Product Category: Logic Comparators
- Mfr. Part # HEF4585BT,652
- Manufacturer: NXP Semiconductors
- Package: SOP16
- Lead Free Status /RoHS Status:
- Data Sheet: HEF4585BT,652 Datasheet
- Inventory: In Stock
- Unit Price: Inquiry
- Quantity: -+
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Mfr. Part #: HEF4585BT,652
- Specifications
- Product Details
Specifications
Product Details
General description
The HEF4585B is a 4-bit magnitude comparator that compares two 4-bit words, A and B, and determines whether A is greater than B, A is equal to B, or A is less than B. Each word has four parallel inputs (A0 to A3 and B0 to B3) with A3 and B3 being the most significant inputs. Three outputs are provided: A greater than B (QA>B), A less than B (QA<B) and A equal to B (QA=B). Three expander inputs (IA>B, IA<B, and IA=B) allow cascading of the devices, to compare 8, 12, 16, ..., bits without external gates.To operate a single device or a device in the least significant position in a cascaded chain, the expander inputs are connected as follows: IA=B = IA>B = HIGH and IA<B = LOW. All other cascaded devices have IA=B and IA<B connected to QA=B and QA<B respectively of the previous (less significant) device in the chain, while input IA>B is connected to a HIGH (see Figure 6). Operation is not restricted to pure binary code; the devices will work with any monotonic code. Table 3 describes the operation of the device under all possible logic conditions.
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 suitable for use over the full industrial (−40 °C to +85 °C) temperature range.
Features
â– Fully static operationâ– 5 V, 10 V, and 15 V parametric ratings
â– Standardized symmetrical output characteristics
■Operates across the full industrial temperature range −40 °C to +85 °C
â– Complies with JEDEC standard JESD 13-B
Applications
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Mfr. Part #: HEF4585BT,652
