NE556DT STMicroelectronics, NE556DT Datasheet - Page 8

• Manufacturer Part Number: NE556DT
• Description: IC TIMER DUAL BIPOLAR 14 SOIC
• Manufacturer: STMicroelectronics
• Type: 555 Type, Timer/Oscillator (Dual)r

Specifications of NE556DT

• Frequency: 500kHz
• Voltage - Supply: 4.5 V ~ 16 V
• Current - Supply: 20mA
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 14-SOIC (3.9mm Width), 14-SOL
• Number Of Internal Timers: 2
• Supply Voltage (max): 4.5 V to 16 V
• Supply Voltage (min): 4.5 V
• Maximum Operating Temperature: 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Count: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-1964-2

Application information
4
4.1
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Application information
Typical application
Figure 12. 50% duty cycle oscillator
t
Figure 13. Pulse width modulator
1
t2 = [(RARB)/(RA+RB)]CLn
f =
= 0.693 R
---------------- - RB <
t1
t1
+
t2
A
.C
1
-- - RA ti
2
tp t
tp t
RB 2RA
-------------------------- -
2RB RA
–
–
V
V
D
P
t
t
NE556 - SA556 - SE556