NE558 Datasheet PDF

Part Number : NE558
Function : Quad timer
Manufacturers : Philips Electronics

Pinouts :
NE558 datasheet

Description : DESCRIPTION
The NE558 Quad Timers are monolithic timing devices which can be used to produce four independent timing functions. The NE558 output sinks current. These highly stable, general purpose controllers can be used in a monostable mode to produce accurate time delays—from microseconds to hours. In the time delay mode of operation, the time is precisely controlled by one external resistor and one capacitor. A stable operation can be achieved by using two
of the four timer sections.

The four timer sections in the NE558 are edge-triggered; therefore, when connected in tandem for sequential timing applications, no coupling capacitors are required. Output current capability of 100 mA is provided in both devices.

• 100 mA output current per section
• Edge-triggered (no coupling capacitor)
• Output independent of trigger conditions
• Wide supply voltage range 4.5 V to 16 V
• Timer intervals from microseconds to hours
• Time period equals RC
• Military qualifications pending.

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NE558 pdf

Other data sheets within the file : NE558,NE558D,NE558F,NE558N

74HC258N Datasheet PDF / Datasheet – Philips

Part Number : 74HC258N
Function : Quad 2-input multiplexer; 3-state;inverting
Manufacturers : Philips Electronics

Pinouts :
74HC258N datasheet

Description :

The 74HC/HCT258 are high-speed Si-gate CMOS devices and are pin compatible with Low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A.

The 74HC/HCT258 have four identical 2-input multiplexers with 3-state outputs, which select 4 bits of data from two sources and are controlled by a common data select input (S).

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74HC258N pdf

Other data sheets within the file : 74HC258,74HC258D,74HC258DB,74HC258N,74HCT258