Timers
- Motorola - MC1555U - IC, Timer. Single RC-Type Timer. 8 CDIP. Rare
Motorola - MC1555U - IC, Timer.
The MC1555/MC1455 monolithic timing circuit is a highly stable controller capable of producing accurate time delays, or oscillation. Additional terminals are provided for triggering or resetting if desired. In the time delay mode of operation, the time 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 with two external resistors and one capacitor. The circuit may be triggered and reset on falling waveforms, and the output structure can source or sink up to 200 mA or drive MTTL circuits.
Status: Discontinued
Single RC-Type Timer.
P(D) Max.(W) Power Dissipation=625m
Nom. Supp (V)=15.
Genuine Motorola - New Old Stock - Very Rare
Package 8 CDIP, Case 693-02.
- National Semiconductor Corp - MM5456N - IC, Timer. Digital Alarm Clock. Monolithic MOS integrated circuit.IN STOCK - MORE THAN 1,000 READY TO SHIP!
National Semiconductor Corp - MM5456N - IC, Timer.
Digital alarm clock.
Monolithic MOS Integrated Circuit.
Clock IC, MOS, PDIP22Part #: MM5456NPart Category: Consumer ICsManufacturer: (NSC) now Texas Instruments High-Performance AnalogDescription: Clock IC, MOS, PDIP22Status DiscontinuedJESD-30 Code R-PDIP-T22JESD-609 Code e0Number of Terminals 22Operating Temperature-Min -25.0 CelOperating Temperature-Max 70.0 CelPackage Body Material PLASTIC/EPOXYPackage Code DIPPackage Equivalence Code DIP22,.4Package Shape RECTANGULARPackage Style IN-LINEQualification Status Not QualifiedSub Category Clock ICsSurface Mount NOTechnology MOSTemperature Grade OTHERTerminal Finish Tin/Lead (Sn/Pb)Terminal Form THROUGH-HOLETerminal Pitch 2.54 mmTerminal Position DUALCase: 22 Dip.
New.
Reference: https://html.datasheetq.com/pdf-html/518108/National-Semiconductor/1page/MM5456N.html?lang=en
Learn More - National Semiconductor Corp - LM555H A+ - IC, timer.Special Price $10.98 Regular Price $14.50IN STOCK - MORE THAN 100 READY TO SHIP!
National Semiconductor Corp - LM555H IC, timer.
Package: TO-99/8 Metal can.
New Old Stock
Learn More - National Semiconductor Corp - LM555H - IC, Timer.Special Price $10.98 Regular Price $14.50
National Semiconductor Corp - LM555H - IC, Timer.
Number of Internal Timers: 1 Timer
Supply Voltage - Max: 18 V
Supply Voltage - Min: 4.5 V
Operating Temperature: - 55 C to + 125 C
Mounting Style: Through Hole
Package / Case: TO-99
High Level Output Current: 200 mA
Length: 9.14 mm
Low Level Output Current: - 200 mA
Pd - Power Dissipation: 760 mW
Note: National Semicoductor ICs where trnsferred to Texas Instruments.
Learn More - Rockwell - R6532P - IC, timer. RAM-I/O-interval timer (RIOT). Used/Socket Pull.Special Price $12.98 Regular Price $24.50Out of stock
Rockwell - R6532P IC, Timer.
RAM-I/O-interval timer (RIOT).
Package: 40 Dip.
Socket Pulls. Used/Removed from Equipment.
Note: Double marked R6532-11
Learn More - National Semiconductor Corp - LM3905N - IC, Timer. Precision. 8 Dip.
National Semiconductor Corp - LM3905N - IC, Timer. Precision.
Timing periods from microseconds to hours.
Operates from 4.5 to 40V supplies.
Input protected from +/-40V.
Timing period can be voltage controlled.
TTL compatible input and output.
Package: 8 Dip.
Genuine National Semiconductor - New Old Stock
Learn More - DALLAS Maxim - DS12887 - IC. Real Time Clock - CMOS Clock, 24 Pin Dip.Special Price $8.98 Regular Price $9.95Out of stock
DALLAS Maxim - DS12887 - IC. Real Time Clock - CMOS Clock, 24 Pin Dip.
IC. Real Time Clock. Package: 18 dip in a 24 dip outline. Replaces DS1287 and used in personal computers to keep time, date, and CMOS settings while PC power is off.
Review Dallas Maxim's on-line application notes for features, installation and compatibility instructions prior to purchasing the DS12887 Real Time Clock.
Status: Discontinued
Type: Clock/Calendar
Features: Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output
Memory Size: 114B
Time Format: HH:MM:SS (12/24 hr)
Date Format: YY-MM-DD-dd
Interface: Parallel
Voltage – Supply: 4.5V ~ 5.5V
Voltage - Supply, Battery: 2.5V ~ 4V
Current - Timekeeping (Max): 15mA @ 4.5V ~ 5.5V
Operating Temperature: 0°C ~ 70°C
Mounting Type: Through Hole
Package / Case: 24-DIP Module (0.600", 15.24mm)
Note: Genuine Dallas Maxim - Not an inexpensive Chinese Import Copy.
Learn More - ZILOG - Z84C9012VSC - I/O Controller, KIO Serial/Parallel Counter TimerSpecial Price $14.95 Regular Price $19.00I/O Controller, KIO Serial/Parallel Counter Timer NEW PLCC Learn More
- ST - MK6823Q-100 - IC. Parallel interface/timer (PI/T).$15.00IC. Parallel interface/timer (PI/T). Package: PLCC Learn More
- Rockwell - R6532-15 - IC, timer. RAM-I/O-Interval Timer (RIOT).Special Price $19.98 Regular Price $24.50
Rockwell - R6532-15 IC, Timer.
RAM-I/O-Interval Timer (RIOT).
128B RAM
Package: 40 DIP.
New.
Additional Data: http://www.datasheetcatalog.com/datasheets_pdf/R/6/5/3/R6532.shtml
Note: Double marked C010750-12.
Applications: Atari 2600, Gottlieb Pinball Machines, Atari 810,1050 Disc Drives, 8050/8250/8250lp Commodore Pet disk drives, Atari 850 interface.
Learn More - OKI - M82C53-2 - IC, timer. CMOS Programmable interval timer.$9.99IC, timer. CMOS Programmable interval timer. Package: 24 Dip. Learn More
- National Semiconductor Corp - MM5387AA/N - IC, timer. Digital alarm clock. Used.Special Price $14.95 Regular Price $19.00IC, timer. Digital alarm clock. Case: 40 Dip. Note: Clean socket pulls. Used/Removed from equipment. Learn More
- Motorola - MC6840P - IC, timer. Programmable timer module (PTM).$14.95IC, timer. Programmable timer module (PTM). Package: 28 Dip. Learn More
- Motorola - MC1555BGBS - IC, timer. Monolithic timing circuit. TO-99/8Special Price $19.95 Regular Price $25.00IC, timer. Monolithic timing circuit. P(D) Max.(W) Power Dissipation=680mw, 4.5V min - 18V max. Package TO-99/8. Obsolete. Learn More
- Motorola - MC68230FN10 - IC. Parallel interface/timer (PI/T).$15.00IC. Parallel interface/timer (PI/T). Package: PLCC SMD. Learn More
- Motorola - MC68230P8 - IC. Parallel interface/timer (PI/T).$15.00IC. Parallel interface/timer (PI/T). Package: 48 Dip. Learn More
- MOSTEK - MK68230N-8D - IC. Parallel interface/timer (PI/T).Special Price $10.49 Regular Price $13.99IC. Parallel interface/timer (PI/T). Package: 48 Dip. Learn More
- INTEL - MD8253/B - IC. Programmable interval timer. Military.$20.00IC. Programmable interval timer. Package: 24 Cdip. Military double marked 5962-875200JA. Learn More
- INTEL - MD8253/B - IC. Programmable interval timer. 24 Cdip.$20.00IC. Programmable interval timer. Package: 24 Cdip. Learn More
- FAIRCHILD - UA2240DC - IC, timer. Programmable counter/timer.$9.99IC, timer. Programmable counter/timer. Package: 16 Cdip. Note: Monolithic. Learn More
- EXAR - XR2240CP - IC. Single RC-Type Timer with Counter.$20.00IC. Single RC-Type Timer with Counter. Supply voltage: 5V. Dissipation: 625mW. Technology: Bipolar. Package: 16 Dip. Learn More
- ST Microelectronics - NE555N - IC, timer. Single. Package of 50.Special Price $19.98 Regular Price $24.95IC, timer. Single. Timing in microseconds through hours. Package: 8 Dip. New. Package of 50, one new full manufactures tube. Learn More
- Motorola - MC68B40P - IC, timer. Programmable timer module (PTM).Special Price $13.98 Regular Price $14.95Out of stock
Motorola - MC68B40P - IC, Timer.
The MC6840 is a programmable subsystem component of the M6800 Family designed to provide variable system time intervals. The MC6840 has three 16-bits binary counters, three corresponding control registers, and status register. These counters are under software control and may be used to cause system interrupts and or generate output signals.
Programmable timer module (PTM).
Package: 28 Dip.
Genuine Motorola - New Old Stock.
Learn More - Motorola - MC68B40P - IC, timer. Programmable timer module (PTM).Special Price $13.98 Regular Price $14.95
Motorola - MC68B40P - IC, Timer.
The MC6840 is a programmable subsystem component of the M6800 Family designed to provide variable system time intervals. The MC6840 has three 16-bits binary counters, three corresponding control registers, and status register. These counters are under software control and may be used to cause system interrupts and or generate output signals.
Programmable timer module (PTM).
Package: 28 Dip.
Genuine Motorola - New Old Stock.
Learn More