NE556F Philips Semiconductors, NE556F Datasheet

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NE556F

Manufacturer Part Number
NE556F
Description
Dual timer
Manufacturer
Philips Semiconductors
Datasheet

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Philips Semiconductors Linear Products
DESCRIPTION
Both the 556 and 556-1 Dual Monolithic timing circuits are highly
stable controllers capable of producing accurate time delays or
oscillation. The 556 and 556-1 are a dual 555. Timing is provided by
an external resistor and capacitor for each timing function. The two
timers operate independently of each other, sharing only V
ground. The circuits may be triggered and reset on falling
waveforms. The output structures may sink or source 200mA.
FEATURES
APPLICATIONS
BLOCK DIAGRAM
August 31, 1994
Touch-Tone is a registered trademark of AT&T
Turn-off time less than 2 s (556-1)
Maximum operating frequency >500kHz (556-1)
Timing from microseconds to hours
Replaces two 555 timers
Operates in both astable and monostable modes
High output current
Adjustable duty cycle
TTL compatible
Temperature stability of 0.005%/ C
SE556-1 compliant to MIL-STD or JAN
Precision timing
Sequential timing
Pulse shaping
Dual timer
CONTROL VOLTAGE
THRESHOLD
DISCHARGE
TRIGGER
GROUND
OUTPUT
RESET
1
2
3
4
5
6
7
COMP
COMP
FLIP FLOP
CC
and
353
PIN CONFIGURATION
Pulse generator
Missing pulse detector
Tone burst generator
Pulse width modulation
Time delay generator
Frequency division
Touch-Tone encoder
Industrial controls
Pulse position modulation
Appliance timing
Traffic light control
CONTROL VOLTAGE
FLIP FLOP
THRESHOLD
DISCHARGE
TRIGGER
OUTPUT
RESET
COMP
COMP
GND
1
2
3
4
5
6
7
D, F, N Packages
NE/SA/SE556/NE556-1
10
14
13
12
11
9
8
DISCHARGE
THRESHOLD
CONTROL VOLTAGE
RESET
OUTPUT
TRIGGER
V
CC
14
13
12
11
10
9
8
DISCHARGE
THRESHOLD
CONTROL VOLTAGE
RESET
OUTPUT
TRIGGER
V
Product specification
CC
853-0035 13721

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NE556F Summary of contents

Page 1

... Philips Semiconductors Linear Products Dual timer DESCRIPTION Both the 556 and 556-1 Dual Monolithic timing circuits are highly stable controllers capable of producing accurate time delays or oscillation. The 556 and 556-1 are a dual 555. Timing is provided by an external resistor and capacitor for each timing function. The two timers operate independently of each other, sharing only V ground ...

Page 2

... R12 6.8K Q21 Q22 Q19 R13 3.3K OUTPUT Q23 C B Q20 R14 Q17 220 Q24 R15 4.7K ORDER CODE DWG # NE556D 0175D NE556F 0581B NE556N 0405B NE556-1F 0581B NE556-1N 0405B SA556N 0405B SE556F 0581B SE556N 0405B RATING UNIT +16 V +18 V 800 mW ...

Page 3

... Philips Semiconductors Linear Products Dual timer ELECTRICAL CHARACTERISTICS T = =+5V to +15V, unless otherwise specified SYMBOL SYMBOL PARAMETER PARAMETER V Supply voltage Supply current (low state) CC Timing error (monostable Initial accuracy Drift with temperature Drift with supply voltage M S Timing error (astable Initial accuracy ...

Page 4

... Philips Semiconductors Linear Products Dual timer ELECTRICAL CHARACTERISTICS SYMBOL SYMBOL PARAMETER PARAMETER 4 Matching characteristics 2 Initial accuracy Drift with temperature Drift with supply voltage NOTES: 1. Supply current when output is high is typically 1.0mA less. 2. Tested at V =5V and V =15V This will determine maximum value of R ...

Page 5

... Philips Semiconductors Linear Products Dual timer TYPICAL PERFORMANCE CHARACTERISTICS Minimum Pulse Width Required for Triggering 150 125 o –55 C 100 + + +125 C 0 0.4(XV 0 0.1 0.2 0.3 LOWEST VOLTAGE LEVEL OF TRIGGER PULSE Low Output Voltage vs Output Sink Current 1 + +125 C 0.1 0.01 1.0 2.0 5 ...

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