SLFS022I September 1973 – September 2014 NA555 , NE555 , SA555 , SE555
PRODUCTION DATA.
PIN | I/O | DESCRIPTION | ||
---|---|---|---|---|
NAME | D, P, PS, PW, JG | FK | ||
NO. | ||||
CONT | 5 | 12 | I/O | Controls comparator thresholds, Outputs 2/3 VCC, allows bypass capacitor connection |
DISCH | 7 | 17 | O | Open collector output to discharge timing capacitor |
GND | 1 | 2 | – | Ground |
NC | 1, 3, 4, 6, 8, 9, 11, 13, 14, 16, 18, 19 | – | No internal connection | |
OUT | 3 | 7 | O | High current timer output signal |
RESET | 4 | 10 | I | Active low reset input forces output and discharge low. |
THRES | 6 | 15 | I | End of timing input. THRES > CONT sets output low and discharge low |
TRIG | 2 | 5 | I | Start of timing input. TRIG < ½ CONT sets output high and discharge open |
VCC | 8 | 20 | – | Input supply voltage, 4.5 V to 16 V. (SE555 maximum is 18 V) |