TC850 データシートの表示（PDF） - Microchip Technology

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TC850

15-Bit, Fast Integrating CMOS A/D Converter

Microchip Technology 

TC850

TABLE 2-1: PIN FUNCTION TABLE (CONTINUED)

Pin Number

(40-Pin

PDIP/CERDIP)

Pin Number

(44-Pin PLCC)

Symbol

Description

33

37

REF2+ Positive input for reference voltage VREF2. (VREF2 = VREF1/64)

34

38

CREF2+ Positive connection for VREF2 reference capacitor.

35

39

CREF2– Negative connection for VREF2 reference capacitor.

36

40

REF– Negative input for reference voltages.

Note

37

41

CREF1– Negative connection for VREF1 reference capacitor.

38

42

CREF1+ Positive connection for VREF1 reference capacitor.

39

43

REF1+ Positive input for VREF1.

40

44

VDD

Positive power supply connection, typically +5V.

1: This pin incorporates a pull-down resistor to DGND.

2: This pin incorporates a pull-up resistor to VDD.

3: Pins 1, 23 and 34 (44-PLCC) package are NC “No Internal connection”.

© 2006 Microchip Technology Inc.

DS21479C-page 7

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