MC14536B Просмотр технического описания (PDF) - Motorola => Freescale
Номер в каталоге
Компоненты Описание
производитель
MC14536B Datasheet PDF : 13 Pages
| |||
TYPICAL RC OSCILLATOR CHARACTERISTICS
(For Circuit Diagram See Figure 11 In Application)
8.0
VDD = 15 V
4.0
0
10 V
– 4.0
– 8.0
5.0 V
– 12
RTC = 56 kΩ,
– 16 C = 1000 pF
– 55 – 25
* Device Only.
RS = 0, f = 10.15 kHz @ VDD = 10 V, TA = 25°C
RS = 120 kΩ, f = 7.8 kHz @ VDD = 10 V, TA = 25°C
0
25
50
75
100 125
TA, AMBIENT TEMPERATURE (°C)*
Figure 1. RC Oscillator Stability
100
50
20
10
5.0
2.0 f AS A FUNCTION
OF C
1.0 (RTC = 56 kΩ)
0.5
(RS = 120 k)
VDD = 10 V
f AS A FUNCTION
OF RTC
(C = 1000 pF)
(RS ≈ 2RTC)
0.2
0.1
1.0 k
0.0001
10 k
100 k
RTC, RESISTANCE (OHMS)
0.001
0.01
C, CAPACITANCE (µF)
1.0 M
0.1
Figure 2. RC Oscillator Frequency as a
Function of RTC and C
MONOSTABLE CHARACTERISTICS
(For Circuit Diagram See Figure 10 In Application)
100
FORMULA FOR CALCULATING tW IN
MICROSECONDS IS AS FOLLOWS:
tW = 0.00247 RX • CX 0.85
WHERE R IS IN kΩ, CX IN pF.
10
100
FORMULA FOR CALCULATING tW IN
MICROSECONDS IS AS FOLLOWS:
tW = 0.00247 RX • CX 0.85
WHERE R IS IN kΩ, CX IN pF.
10
RX = 100 kΩ
50 kΩ
1.0
10 kΩ
5 kΩ
TA = 25°C
VDD = 5 V
0.1
1.0
10
100
1000
CX, EXTERNAL CAPACITANCE (pF)
Figure 3. Typical CX versus Pulse Width
@ VDD = 5.0 V
RX = 100 kΩ
50 kΩ
1.0
10 kΩ
5 kΩ
TA = 25°C
VDD = 10 V
0.1
1.0
10
100
1000
CX, EXTERNAL CAPACITANCE (pF)
Figure 4. Typical CX versus Pulse Width
@ VDD = 10 V
100
FORMULA FOR CALCULATING tW IN
MICROSECONDS IS AS FOLLOWS:
tW = 0.00247 RX • CX 0.85
WHERE R IS IN kΩ, CX IN pF.
10
RX = 100 kΩ
50 kΩ
1.0
0.1
1.0
10 kΩ
5 kΩ
TA = 25°C
VDD = 15 V
10
100
1000
CX, EXTERNAL CAPACITANCE (pF)
Figure 5. Typical CX versus Pulse Width
@ VDD = 15 V
MOTOROLA CMOS LOGIC DATA
MC14536B
7
Share Link: 