TC7135CLI Microchip Technology, TC7135CLI Datasheet - Page 14

• Manufacturer Part Number: TC7135CLI
• Description: IC ADC 4 1/2DGT 28-PLCC
• Manufacturer: Microchip Technology

Specifications of TC7135CLI

• Display Type: LED
• Configuration: 7 Segment
• Interface: BCD
• Digits Or Characters: A/D 4.5 Digits
• Current - Supply: 1mA
• Voltage - Supply: 4 V ~ 6 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 28-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TC7135
FIGURE 6-2:
FIGURE 6-3:
DS21460D-page 14
1.
2. Examples:
a. If R
b. If R
c. If R
a. F = 120 kHz, C = 420 pF
b. F = 120 kHz, C = 420pF, R
c. F = 120 kHz, C = 220 pF, R
F
O
R
R
R
Analog
+
Input
–
=
1
1
1
R
200 kHz
0.33 µF
= R
= 8.93 kΩ
= 27.3 kΩ
------------------------------------------------- -
2C 0.41R
2
2
1
2
<< R
>> R
100 kΩ
= R
(
2
Gates are 74C04
≈ 10.9 kΩ
2
1
1
, F ≅ 0.72/R
, F ≅ 0.45/R
100 kΩ
= R
4-1/2 Digit ADC With Multiplexed Common Anode Led Display.
RC Oscillator Circuit.
1
P
1 µF
1 µF
C
+
1
, F≅ 0.55/RC
0.7R
22
10
4
5
6
9
3
5V
1
100 kΩ
V–
D1 D2 D3 D4 D5
INT OUT
AZ IN
BUFF
OUT
F
+INPUT
–INPUT
ANALOG
COMMON
1
IN
20 19
2
)
REF
IN
1
, R
1
C
C
TC7135
R
P
2
1
2
18
=
= 50 kΩ
= 5 kΩ
1 µF
------------------
R
MCP1525
R
C
17
1
C
REF
1
REF
+
POL
R
V+
B8
B4
B2
B1
R
2
12
+
11
–
2
23
7
8
16
15
14
13
F
O
4.7 kΩ
V+
1 µF
Blank MSD On Zero
FIGURE 6-4:
0.22 µF
100 kΩ
R
2
b
0.1 µF
6
2
1
7
C
100 kΩ
c
1
C
D
B
A
R
2
16 kΩ
16 kΩ
7
RBI
DM7447A
Comparator Clock Circuits.
2
3
5
© 2007 Microchip Technology Inc.
+
–
LM311
2
3
1
9 15
+5V
7
X7
+
–
LM311
6
4
4
8
56 kΩ
2 kΩ
7
7
R
10 pF
1
16
4
C
7
2
+5V
+5V
+5V
7
R
50 kΩ
1 kΩ
30 kΩ
390 pF
3
V
V
OUT
OUT