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UPC1555 の電気的特性と機能

UPC1555のメーカーはNECです、この部品の機能は「Timer Circuit」です。


製品の詳細 ( Datasheet PDF )

部品番号 UPC1555
部品説明 Timer Circuit
メーカ NEC
ロゴ NEC ロゴ 




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UPC1555 Datasheet, UPC1555 PDF,ピン配置, 機能
DATA SHEET
MOS INTEGRATED CIRCUIT
Bipolar Analog Integrated Circuit
µPC1555
TIMER CIRCUIT
The µPC1555 is a powerful integrated circuit. Adding a few external parts to it can turn it into various types of
timing signal generators, such as monostable and astable multivibrators. It has trigger, threshold, and control pins.
Inputting a signal to the reset pin can stop the circuit operation easily. In addition, the output can sink current as high
as 200 mA (maximum). So, it can be used to drive relays and lamps.
TYPICAL CHARACTERISTICS
• Supply voltage
: 4.5 to 16 V
• Circuit current (VCC = 5 V) : 3 mA
• Output current capacity : 200 mA
• Temperature stability
: 0.005%/°C
• Rising and falling time : 100 ns
FEATURES
• Monostable and astable oscillation
• Interfacing directly with TTL-level signals
• Variable duty cycle
ORDERING INFORMATION
Part number
Package
µPC1555C 8-pin plastic DIP (300 mil)
µPC1555G2 8-pin plastic SOP (225 mil)
PIN CONFIGURATION (TOP VIEW)
GND 1
8 VCC
Trigger 2 COMP
Flip-flop
Output 3
Output
stage
R 7 Discharge
R
COMP 6 Threshold
R
Reset 4
VREF
5 Control voltage
EQUIVALENT CIRCUIT
8
VCC
R2
1 k
Q6 Q5
Q11
R3
5 k
6
Q1 Q4
Threshold 2 Q2 Q3
5(3VCC)
Control
1
R1
10 k
GND
R4
5 k
Q15 Q16
2
Trigger
Q8 Q9
Q7 Q10
Reset 4
7
Discharge
Q14
Q25
Q12 Q13 R5
5 k
R11
Q22
6.2
k
R6
7.5k
Q21
Q27
R12
3.9
k
Q28
Q17
R7
4.7 k
3
Q24 Output
Q19
Q18
Q20 R10
Q23 120
R8
100
Q26
R9
3.3k
Document No. G10649EJ6V0DS00 (6th edition)
(Previous No. IC-1979)
Date Published November 1995 P
Printed in Japan
©
1986

1 Page





UPC1555 pdf, ピン配列
µPC1555
ELECTRICAL CHARACTERISTICS (TA = 25°C, VCC = 5 to 15 V)
Parameter
Supply voltage
Supply current
Threshold voltage
Threshold current
Trigger voltage
Trigger current
Reset voltage
Reset current
Control voltage
Output saturation voltage “L”
Output saturation voltage “H”
Propagation delay (L H)
Propagation delay (H L)
Minimum trigger pulse width
Minimum output pulse width
Minimum reset pulse width
Timing error
Initial accuracy
Temperature drift
Supply voltage drift
Symbol
VCC
ICC
Vth
Ith
Vtr
Itr
Vreset
Ireset
Vcont
VOL
VOH
tPLH
tPHL
tW (tr)
tW (OUT)
tw (reset)
Conditions
VCC = 5 V, RL = , VO = “L”Note 6
VCC = 15 V, RL = , VO = “L”Note 6
MIN.
4.5
0
0
Note 7
VCC = 15 V
VCC = 5 V
0
Note 8
0.4
VCC = 15 V
VCC = 5 V
VCC = 15 V, ISINK = 10 mA
VCC = 15 V, ISINK = 50 mA
VCC = 15 V, ISINK = 100 mA
VCC = 15 V, ISINK = 200 mA
VCC = 5 V, ISINK = 5 mA
VCC = 15 V, ISOURCE = 200 mA
VCC = 15 V, ISOURCE = 100 mA
VCC = 5 V, ISOURCE = 100 mA
9.0
2.6
0
0
0
0
12.75
2.75
VCC = 15 V, Vtr min. = 2.5 V
VCC = 15 V, Vtr min. = 2.5 V
tW (tr) = 3 µs
VCC = 15 V, Vtr min. = 0 V
Astable multivibrator
RA, RB = 1 to 100 k
C = 0.1 µF
TYP.
3
10
2/3 VCC
0.1
5
1.67
0.5
0.7
0.1
10
3.33
0.1
0.4
2.0
2.5
0.1
12.5
13.3
3.3
200
200
25
6
900
1
50
0.01
MAX.
16
6
15
0.25
1.0
11
4
0.25
0.75
2.5
0.35
15.0
5.0
Unit
V
mA
mA
V
µA
V
V
µA
V
mA
V
V
V
V
V
V
V
V
V
V
ns
ns
ns
µs
ns
%
ppm/°C
%/V
Notes 6. When the output is “H”, the circuit current decreases by approximately 1 mA (when VCC = 5 V).
7. The maximum allowable value for RA + RB is determined for a supply voltage of 15 V. The maximum
value is 20 M.
8. When the reset pin is driven to a low level, discharge TrQ14 is turned on, stopping oscillation (the output
state is undefined).
3


3Pages


UPC1555 電子部品, 半導体
µPC1555
PIN FUNCTIONS
1. Trigger pin (pin 2)
:
2. Output pin (pin 3)
:
3. Reset pin (pin 4)
:
4. Control voltage (pin 5) :
5. Threshold pin (pin 6) :
6. Discharge pin (pin 7) :
Supplying one-third of VCC to the trigger pin triggers the circuit, changing the output
voltage from low to high.
The maximum output current is 200 mA. Be careful not to exceed the total loss (see
the PT-TA characteristic curve).
Supplying 0.4 V or less to the reset pin stops the circuit operation (such as monostable
or astable multivibrator operation).
When not used, the reset pin should be clamped at 1 V to VCC.
This voltage determines the threshold level of the comparator. It is set to two-thirds
of VCC. It is possible to configure a PWM (pulse width modulation) or PPM (pulse
position modulation) mode application circuit by supplying a control voltage from the
outside. When this pin is not in use, it should be bypassed using a capacitor of
approximately 0.01 µF for more table circuit operation.
The values of an external capacitor (C) and resistor (R) connected to this pin determine
the width of the output pulse.
This pin is used to discharge an external capacitor (if connected). It operates, when
the internal flip-flop circuit is turned on, or a reset signal is applied.
6

6 Page



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部品番号部品説明メーカ
UPC1555

Timer Circuit

NEC
NEC


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