This website uses cookies. By using this site, you consent to the use of cookies. For more information, please take a look at our Privacy Policy.

Images are for reference only,

See Technical Specifications

SA555D +BOM

Precision timer for -55 to 85C operation

Manufacturer:

ON Semiconductor, LLC
Mfr.Part #:

SA555D
Datasheet:

SA555D Datasheet (PDF)
Function:

General-purpose timer
Iq (typ) (mA):

2
Rating:

Catalog
Operating Temperature Range (°C):

-40 to 85
EDA/CAD Models:

Request Free CAD Models for SA555D

Email: [email protected]

Skype: live:.cid.ab6b29428937b76

Tel: +852 95804164

SA555D General Description

These devices are precision timing circuits capable of producing accurate time delays or oscillation. In the time-delay or mono-stable mode of operation, the timed interval is controlled by a single external resistor and capacitor network. In the a-stable mode of operation, the frequency and duty cycle can be controlled independently with two external resistors and a single external capacitor.

The threshold and trigger levels normally are two-thirds and one-third, respectively, of V_CC. These levels can be altered by use of the control-voltage terminal. When the trigger input falls below the trigger level, the flip-flop is set, and the output goes high. If the trigger input is above the trigger level and the threshold input is above the threshold level, the flip-flop is reset and the output is low. The reset (RESET) input can override all other inputs and can be used to initiate a new timing cycle. When RESET goes low, the flip-flop is reset, and the output goes low. When the output is low, a low-impedance path is provided between discharge (DISCH) and ground.

The output circuit is capable of sinking or sourcing current up to 200 mA. Operation is specified for supplies of 5 V to 15 V. With a 5-V supply, output levels are compatible with TTL inputs.

Key Features

Timing From Microseconds to Hours
Astable or Monostable Operation
Adjustable Duty Cycle
TTL-Compatible Output Can Sink or Source
Up to 200 mA
On Products Compliant to MIL-PRF-38535,
All Parameters Are Tested Unless Otherwise Noted. On All Other Products, Production Processing Does Not Necessarily Include
Testing of All Parameters.

Specifications

Function	General-purpose timer	Iq (typ) (mA)	2
Rating	Catalog	Operating temperature range (°C)	-40 to 85
Supply voltage (max) (V)	16	Supply voltage (min) (V)	4.5
feature-maximum-operating-supply-voltage-v	16	feature-minimum-operating-supply-voltage-v	4.5
feature-packaging	Tube	feature-rad-hard
feature-pin-count	8	feature-cecc-qualified	No
feature-esd-protection	Yes	feature-escc-qualified
feature-military	No	feature-aec-qualified	No
feature-aec-qualified-number		feature-eccn-code	EAR99
feature-svhc	No	feature-svhc-exceeds-threshold	No