tc7129 Microchip Technology Inc., tc7129 Datasheet - Page 6

• Manufacturer Part Number: tc7129
• Description: 4-1/2 Digit Analog-to-digital Converters With On-chip Lcd Drivers
• Manufacturer: Microchip Technology Inc.

TABLE 2-1:
DS21459D-page 6
TC7129
40-Pin PDIP
Pin No.
36
37
38
39
40
—
44-Pin PQFP
6,17, 28, 39
Pin No.
PIN FUNCTION TABLE (CONTINUED)
34
35
36
37
38
44-Pin PLCC
12, 23, 34, 1
Pin No.
40
41
42
43
44
Symbol
RANGE
DGND
OSC2
DP
NC
DP
2
1
Internal ground reference for digital section. See Section 4.2.1
“±5V Power Supply”.
3 A pull-down for 200 mV scale. Pulled high externally for 2V
scale.
Internal 3 A pull-down. When high, decimal point 2 will be on.
Internal 3 A pull-down. When high, decimal point 1 will be on.
Output of first clock inverter. Input of second clock inverter.
No connection.
Function
© 2006 Microchip Technology Inc.