Texas Instruments（TI） NE555DR

View All Display Drivers by Texas Instruments（TI）

Part Number:
NE555DR
Manufacturer:
Texas Instruments（TI）
Category:
Display Drivers
RoHs:
RoHS Compliant
Datasheet:
NE555DR_Datesheet
Description:
IC OSC SGL TIMER 100KHZ 8-SOIC
In stock 248,449

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Specifications

Type

Paramete

Type

Paramete

Current - Supply

10 mA

Frequency

100kHz

Grade

Operating Temperature

0°C ~ 70°C

Package / Case

8-SOIC (0.154", 3.90mm Width)

Supplier Device Package

8-SOIC

Type

555 Type, Timer/Oscillator (Single)

Mounting Type

Surface Mount

Qualification

Voltage - Supply

4.5V ~ 16V

Count

Overview

NE555DR – Precision Timers (Datasheet Summary)

1. Basic Information

Manufacturer: Texas Instruments
Document: SLFS022K (Revised March 2026)
Device Type: Bipolar precision timer (monostable / astable operation)
Part Number: NE555DR
Package: 8‑pin SOIC (D package)
Packing: Tape and reel, 2500 units per reel
RoHS: Compliant
Application: Timers, pulse generators, oscillators, PWM, frequency dividers

2. Key Features

Wide timing range: microseconds to hours
Supports monostable and astable modes
Adjustable duty cycle
TTL/CMOS compatible
Output can sink/source up to 200 mA
Adjustable threshold via CONT pin
Stable timing over supply and temperature

3. Operating Conditions

Supply Voltage (VCC): 4.5 V to 16 V
Operating Temperature (TA): 0°C to +70°C
Output Current (IO): ±200 mA max

4. Absolute Maximum Ratings

Parameter	Value	Unit
Supply Voltage (VCC)	18	V
Input Voltage	VCC	V
Output Current	±225	mA
Operating Junction Temperature (TJ)	150	°C
Storage Temperature	–65 to +150	°C
Lead Temperature (10s)	300	°C

5. ESD Ratings

Parameter	Value	Unit
HBM	±500	V
CDM	±1500	V

6. Thermal Information (SOIC D Package)

Parameter	Value	Unit
RθJA (Junction-to-ambient)	125.4	°C/W
RθJC(top)	64.9	°C/W

7. Pin Configuration (8‑Pin SOIC Top View)

Pin	Name	Function
1	GND	Ground
2	TRIG	Trigger input
3	OUT	Output
4	RESET	Active‑low reset
5	CONT	Control voltage
6	THRES	Threshold input
7	DISCH	Discharge
8	VCC	Supply voltage

8. Electrical Characteristics (TA = 25°C, VCC = 5–15 V)

Threshold & Trigger Levels

Parameter	Conditions	Min	Typ	Max	Unit
Threshold Voltage (THRES)	VCC = 15 V	8.8	10	11.2	V
Trigger Voltage (TRIG)	VCC = 15 V	4.5	5	5.6	V
Reset Voltage (RESET)	—	—	—	1	V

Leakage Currents

Parameter	Typ	Max	Unit
Threshold Input Current	—	250	nA
Trigger Input Current	0.5	2	μA

Output Voltages

Parameter	Conditions	Typ	Max	Unit
VOL (Low Output)	VCC = 15 V, IOL = 200 mA	2.5	—	V
VOH (High Output)	VCC = 15 V, IOH = –100 mA	13.3	—	V

Supply Current

Condition	Typ	Max	Unit
Output Low, VCC = 15 V	10	15	mA
Output High, VCC = 15 V	9	13	mA

9. Switching Characteristics

Parameter	Typ	Max	Unit
Output Rise Time (tr)	100	300	ns
Output Fall Time (tf)	100	300	ns
Temperature Coefficient (monostable)	—	50	ppm/°C
Supply Sensitivity	—	0.5	%/V

10. Functional Truth Table

RESET	TRIG	THRES	OUT	DISCH
Low	X	X	Low	On
High	< 1/3 VCC	X	High	Off
High	> 1/3 VCC	> 2/3 VCC	Low	On
High	> 1/3 VCC	< 2/3 VCC	Hold	Hold

11. Package & Mechanical

Package: SOIC (D), 8 pins
Pitch: 1.27 mm
Moisture Sensitivity: Level 1 (260°C unlimited)
Tape-and-Reel: 2500 units per reel
Marking: NE555

12. Typical Applications

Monostable multivibrator (time delay)
Astable oscillator (clock generator)
PWM / PPM modulators
Missing pulse detector
Sequential timers
Frequency dividers

13. Design Notes

Bypass VCC with 0.1 μF capacitor
Tie unused RESET to VCC
Timing formula (monostable): t = 1.1 × RA × C
Frequency formula (astable): f = 1.44 / ((RA + 2RB) × C)

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