component

SA555MM

Public Made by Adom

by adom

HGSEMI Timers, MSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SA555MM

HGSEMI · Timers · MSOP-8

SA555MM from HGSEMI, in a MSOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GND power_in Ground.
2 RTIG input Trigger input (触发); trigger voltage is 1.67 V typ at VCC=5V and 5 V typ at VCC=15V.
3 OUT output Output; VOL is 0.1 V typ at VCC=15V, ISINK=10mA and VOH is 13.3 V typ at VCC=15V, IS=100mA.
4 R input Reset input; reset voltage is 0.5 V typ (0.4 V min, 1 V max).
5 CONTRIG passive Control voltage (trigger control) pin; control voltage is 10 V typ at VCC=15V and 3.33 V typ at VCC=5V.
6 CONTH input Threshold input (阈值控制); threshold voltage is 0.667*VCC.
7 DIS passive Discharge pin; leakage current is 20 nA typ (100 nA max) when output is high.
8 VCC power_in Supply voltage, 4.5 V to 16 V operating, 18 V absolute maximum.

Key specifications

Parameter Value
Manufacturer HGSEMI
Package MSOP-8
Category Clock And Timing
Pins 8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply voltage VCC 18 V Tamb=25℃ 3
Power dissipation (DIP) PD 600 mW DIP package, Tamb=25℃ 3
Operating ambient temperature SA555 Tamb -40 85 ℃ SA555 3
Storage temperature Tstg -65 150 ℃ 3
Lead temperature TLEAD 260 ℃ soldering 10s 3
Supply voltage VCC 4.5 16 V 4
Quiescent current IQ 3 6 mA VCC=5V, RL=∞ 4
Quiescent current IQ 10 15 mA VCC=15V, RL=∞ 4
Threshold current ITH 0.1 0.25 uA 4
Trigger current ITR 0.5 2 uA 4
Reset voltage VR 0.4 0.5 1 V 4
Reset current IR 0.1 0.4 mA 4
Control voltage VCON 9 10 11 V VCC=15V 4
Control voltage VCON 2.6 3.33 4 V VCC=5V 4
Pin 7 leakage current I7(LEAK) 20 100 nA output high 4
Pin 7 saturation voltage V7(SAT) 80 200 mV output low, Vcc=4.5V, I7=4.5mA 4
Pin 7 saturation voltage V7(SAT) 180 mV output low, Vcc=15V, I7=15mA 4
Output high voltage VOH 12.75 13.3 V VCC=15V, IS=100mA 4
Output high voltage VOH 2.75 3.3 V VCC=5V, IS=100mA 4
Output high voltage VOH 12.5 V VCC=15V, IS=200mA 4
Output low voltage VOL 0.1 0.25 V VCC=15V, ISINK=10mA 4
Output low voltage VOL 0.4 0.75 V VCC=15V, ISINK=50mA 4
Output low voltage VOL 2 2.5 V VCC=15V, ISINK=100mA 4
Output low voltage VOL 2.5 V VCC=15V, ISINK=200mA 4
Output low voltage VOL 0.25 0.35 V VCC=5V, ISINK=5mA 4
Threshold voltage VTH 0.667 *Vcc 4
Trigger voltage VTR 5 V VCC=15V 4
Trigger voltage VTR 1.67 V VCC=5V 4
Output rise time tr 100 nS 4
Output fall time tf 100 nS 4
Initial accuracy (monostable) ΔtE 1 % RA,RB=1~100k, C=0.1uF, VCC=5V(15V) 4
Drift with temperature (monostable) ΔtT 50 ppm/℃ RA,RB=1~100k, C=0.1uF, VCC=5V(15V) 4
Drift with voltage (monostable) ΔtV 0.1 %/V RA,RB=1~100k, C=0.1uF, VCC=5V(15V) 4
Accuracy over operating temperature range (monostable) ΔtOPr 1.5 % RA,RB=1~100k, C=0.1uF, VCC=5V(15V) 4
Initial accuracy (astable) ΔtE1 2.25 % RA,RB=1~100k, C=0.1uF, Vcc=5V(15V) 4
Drift with temperature (astable) ΔtT1 150 ppm/℃ RA,RB=1~100k, C=0.1uF, Vcc=5V(15V) 4
Drift with voltage (astable) ΔtV1 0.3 %/V RA,RB=1~100k, C=0.1uF, Vcc=5V(15V) 4
Accuracy over operating temperature range (astable) ΔtOpr1 3 % RA,RB=1~100k, C=0.1uF, Vcc=5V(15V) 4

CAD (KiCad official)

  • Symbol: SA555MM
  • Footprint: Package_SO:MSOP-8_3x3mm_P0.65mm
  • 3D model: MSOP-8 (KiCad packages3D, STEP)
  • 3D model files: sa555mm-etched.step / sa555mm-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sa555mm.step / sa555mm.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: HGSEMI datasheet (12 pp, sha256 aeacc0a1e25195ab, retrieved 2026-10-22, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF