TC14433ELI Microchip Technology, TC14433ELI Datasheet - Page 7

• Manufacturer Part Number: TC14433ELI
• Description: IC ADC 3 1/2 DIGIT 28PLCC
• Manufacturer: Microchip Technology

Specifications of TC14433ELI

• Display Type: LED
• Configuration: 7 Segment
• Interface: BCD
• Digits Or Characters: A/D 3.5 Digits
• Current - Supply: 1.8mA
• Voltage - Supply: 4.5 V ~ 8 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

© 2008 Microchip Technology Inc.
TABLE 3-1:
24-Pin PDIP,
Pin No.
SOIC
16
17
18
19
20
21
22
23
24
—
—
—
—
PIN FUNCTION TABLE (CONTINUED)
Pin No.
28-Pin
PLCC
19
20
21
23
24
25
26
27
28
15
22
1
8
Symbol
DS
DS
DS
DS
V
NC
NC
NC
NC
Q
Q
Q
Q
DD
0
1
2
3
4
3
2
1
Digit select pin. The digit select output goes high when the respective digit is
selected. The MSD (1/2 digit turns on immediately after an EOC pulse).
The remaining digits turn on in sequence from MSD to LSD.
To ensure that the BCD data has settled, an inter digit blanking time of two
clock periods is included.
Clock frequency divided by 80 equals multiplex rate. For example, a system
clock of 60 kHz gives a multiplex rate of 0.8 kHz.
See
BCD data output pin. Multiplexed BCD outputs contain three full digits of
information during digit select DS
During DS
available.
Refer to the Truth
Positive power supply. This is the most positive power supply pin.
Not Used.
Not Used.
Not Used.
Not Used.
Figure 5-4
1
, the 1/2 digit, overrange, underrange and polarity information is
for digit select timing diagram.
Table
5-1.
Description
2
, DS
3
, DS
4
.
TC14433/A
DS21394D-page 7