(China (Mainland))
Product Summary
The HEF4520BT is a dual 4-bit internally synchronous binary counter. The counter has an active HIGH clock input (nCP0) and an active LOW clock input (nCP1), buffered outputs from all four bit positions (nQ0 to nQ3) and an active HIGH overriding asynchronous master reset input (nMR). The HEF4520BT 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. The HEF4520BT is also suitable for use over the full industrial (-40℃ to +85℃) temperature range.
Parametrics
HEF4520BT absolute maximum ratings: (1)supply voltage:-0.5V to +18 V; (2)input clamping current:±10 mA; (3)input voltage:-0.5V to VDD + 0.5 V; (4)output clamping current:±10 mA; (5)input/output current:±10 mA; (6)supply current:50 mA; (7)storage temperature:-65℃ to +150℃; (8)ambient temperature:-40℃ to +85℃; (9)total power dissipation:500 mW; (10)power dissipation per output:100 mW.
Features
HEF4520BT features: (1)Tolerant of slow clock rise and fall times; (2)Fully static operation; (3)5 V, 10 V, and 15 V parametric ratings; (4)Standardized symmetrical output characteristics; (5)Operates across the full industrial temperature range -40℃ to +85℃; (6)Complies with JEDEC standard JESD 13-B.
Diagrams
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 HEF4520BT,653 |
NXP Semiconductors |
Counter ICs DUAL BINARY COUNTER |
Data Sheet |
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HEF4520BTD |
NXP Semiconductors |
Counter ICs DUAL COUNTER BINARY |
Data Sheet |
Negotiable |
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HEF4520BT,652 |
NXP Semiconductors |
Counter ICs DUAL COUNTER BINARY |
Data Sheet |
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