Description
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For sale here we have the above…
1 Piece
Description
The ICM7555 and ICM7556 are CMOS RC timers providing significantly improved performance over the standard SE/NE 555/6 and 355 timers, while at the same time being direct replacements for those devices in most applications. Improved parameters include low supply current, wide operating supply voltage range, low THRESHOLD, TRIGGER and RESET currents, no crowbarring of the supply current during output transitions, higher frequency performance and no requirement to decouple CONTROL VOLTAGE for stable operation. Specifically, the ICM7555 and ICM7556 are stable controllers capable of producing accurate time delays or frequencies. The is a dual ICM7555, with the two timers operating independently of each other, sharing only V+ and GND. In the one shot mode, the pulse width of each circuit is precisely controlled by one external resistor and capacitor. For astable operation as an oscillator, the free running frequency and the duty cycle are both accurately controlled by two external resistors and one capacitor. Unlike the regular bipolar SE/NE 555/6 devices, the CONTROL VOLTAGE terminal need not be decoupled with a capacitor. The circuits are triggered and reset on falling (negative) waveforms, and the output inverter can source or sink currents large enough to drive TTL loads, or provide minimal offsets to drive CMOS loads.
Features
Exact Equivalent in Most Cases for TLC555/556 Low Supply Current ICM7556. 120A Extremely Low Input Currents. 20pA High Speed Operation. 1MHz Guaranteed Supply Voltage Range. to 18V Temperature Stability. at +25°C Normal Reset Function – No Crowbarring of Supply During Output Transition Can be Used with Higher Impedance Timing Elements than Regular 555/6 for Longer RC Time Constants Timing from Microseconds through Hours Operates in Both Astable and Monostable Modes Adjustable Duty Cycle High Output Source/Sink Driver can Drive TTL/CMOS Outputs have Very Low Offsets, HI and LO Pb-Free Plus Anneal Available (RoHS Compliant)
Specifications
Exact Equivalent in Most Cases for SE/NE555/556 or TLC555/556
• Low Supply Current
– ICM7555 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60μA
– ICM7556 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120μA
• Extremely Low Input Currents . . . . . . . . . . . . . . . . . 20pA
• High Speed Operation . . . . . . . . . . . . . . . . . . . . . . . 1MHz
• Guaranteed Supply Voltage Range . . . . . . . . . 2V to 18V
• Temperature Stability . . . . . . . . . . . . 0.005%/°C at +25°C
• Normal Reset Function – No Crowbarring of Supply During
Output Transition
• Can be Used with Higher Impedance Timing Elements
than Regular 555/6 for Longer RC Time Constants
• Timing from Microseconds through Hours
• Operates in Both Astable and Monostable Modes
• Adjustable Duty Cycle
• High Output Source/Sink Driver can Drive TTL/CMOS
• Outputs have Very Low Offsets, HI and LO
• Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
• Precision Timing
• Pulse Generation
• Sequential Timing
• Time Delay Generation
• Pulse Width Modulation
• Pulse Position Modulation
Or go directly to…
https://www.digchip.com/datasheets/parts/datasheet/235/7555IBA-pdf.php
PLEASE NOTE!
These parts came to us as part of a lot of surplus stock from a large ‘Mispec’ type Co. and have been kept in storage for some time, we have therefore classified them as ‘new other’, they are however pristine, stored with us sealed in original packaging, the photographs are representative of their general condition, being of some of our actual stock, and, as with all our products they come with a full guarantee.
If you have similar items to this, or indeed any electronic components that are surplus to requirements please contact us with details.
