مخطط الأطراف

مخطط أطراف مؤقت 555 (DIP-8)

الأطراف

1: GND
2: TRIG (trigger)
3: OUT (output)
4: RESET (active low)
5: CTRL (control voltage)
6: THR (threshold)
7: DISCH (discharge)
8: VCC

المواصفات

جهد التغذية	NE555: 4.5–16 V; CMOS TLC555: 2–15 V; ICM7555: 2–18 V
Supply current (no load)	NE555: ≈ 3 mA typ at 5 V, ≈ 10 mA at 15 V; CMOS versions: well under 1 mA
Output current	NE555: up to 200 mA sink or source
Trigger / threshold levels	Trigger at 1/3 VCC, threshold at 2/3 VCC
Monostable pulse	t = 1.1 × R × C
Astable frequency	f = 1.44 / ((R1 + 2·R2) × C)
Output rise/fall time	≈ 100 ns typ (NE555)
Operating temperature	NE555: 0–70 °C; SE555: −55–125 °C
الغلاف	DIP-8, SOIC-8

مخططات أطراف أخرى

عاكس Schmitt-trigger سداسي 74HC14 (DIP-14)Logic family: 74HC (high-speed CMOS); Gates: 6 Schmitt-trigger inverters; جهد التغذية: 2–6 V
مشغّل خط RS-232 من نوع MAX232 (DIP-16)جهد التغذية: 4.5–5.5 V (single 5 V supply); Supply current: ≈ 8 mA typ (no load); Channels: 2 drivers + 2 receivers
ATtiny85 (DIP-8)Core: 8-bit AVR; جهد التغذية: ATtiny85: 2.7–5.5 V; ATtiny85V: 1.8–5.5 V; سرعة الساعة: Up to 10 MHz at 2.7–5.5 V, 20 MHz at 4.5–5.5 V; internal 8 MHz RC…
وحدة ساعة الوقت الحقيقي DS3231 (ZS-042، I2C)جهد التغذية: Chip: 2.3–5.5 V; module typically used at 3.3–5 V; الواجهة: I2C, up to 400 kHz; I2C address: 0x68 (RTC); 0x57 for the on-board AT24C32…
مسجل الإزاحة 74HC595 (DIP-16)Logic family: 74HC (high-speed CMOS); Function: 8-bit serial-in, parallel-out with output latch and 3-state outputs; جهد التغذية: 2–6 V
مسجل إزاحة بإدخال متوازٍ 74HC165 (DIP-16)Logic family: 74HC (high-speed CMOS); Function: 8-bit parallel-in, serial-out (QH plus inverted QH output); جهد التغذية: 2–6 V
ATmega328P (DIP-28)Core: 8-bit AVR; جهد التغذية: 1.8–5.5 V; سرعة الساعة: Up to 4 MHz at 1.8 V, 10 MHz at 2.7 V, 20 MHz at 4.5–5.5 V; internal 8 MHz RC oscillator
موسّع المنافذ PCF8574 عبر I2C (DIP-16)جهد التغذية: 2.5–6 V; الواجهة: I2C, 100 kHz (standard mode); I2C address: PCF8574: 0x20–0x27; PCF8574A: 0x38–0x3F (set by A0–A2)