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TS556 Datasheet Low-power dual CMOS timer

Manufacturer: STMicroelectronics

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General Description

The TS556 is a dual CMOS timer which offers a very low consumption: I(cIccc(T(TYYPP))NTES555566(a=) 220 µA at = 6 mA), VCC = 5 V versus and high frequency: (f(max.) TS556 = 2.7 MHz versus f(max.) NE556(a) = 0.1 MHz) In both monostable and astable modes, timing remains very accurate.

The TS556 provides reduced supply current spikes during output transitions, which enables the use of lower decoupling capacitors compared to those required by bipolar NE556(a).

Due to the high input impedance (1012 Ω), timing capacitors can also be minimized.

Overview

SO14 (plastic micropackage) Pin connections (top view) Discharge 1 Threshold 2 Control Voltage 3 Reset 4 Output 5 Trigger 6 GND 7 14 +VS 13 Discharge 12 Threshold 11 Control Voltage 10 Reset 9 Output 8 Trigger TS556.

Key Features

  • Very low power consumption:.
  • 220 µA typ at VCC = 5 V.
  • 180 µA typ at VCC = 3 V.
  • High maximum astable frequency 2.7 MHz.
  • Pin-to-pin and functionally compatible with bipolar NE556(a).
  • Wide voltage range: 2 V to 16 V.
  • Supply current spikes reduced during output transitions.
  • High input impedance: 1012 Ω.
  • Output compatible with TTL, CMOS and logic MOS a. Terminated product January 2025 This is information on a product i.

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