TC7109 View Datasheet(PDF) - Microchip Technology

Part Name

Description

MFG CO.

TC7109

12-Bit μA-Compatible Analog-to-Digital Converters

Microchip Technology 

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TC7109/A

6402 CMOS UART

Serial Output

Serial Input

TBRL DRR TBRE RBR1 - RBR8 SFD TBR1 - TBR8

2

3 GND

8-Bit Data Bus

Analog In

MODE CE/ SEND

LOAD

B9 - B12 6

POL, OR

TC7109A B1 - B8 8

Analog In

MODE CE/ SEND

LOAD

B9 - B12 6

POL, OR

TC7109A B1 - B8 8

Analog In

MODE CE/ SEND

LOAD

B9 - B12 6

POL, OR

TC7109A B1 - B8 8

RUN/HOLD

+5V

HBEN

LBEN

RUN/HOLD

+5V

HBEN

LBEN

RUN/HOLD

+5V

HBEN

LBEN

FIGURE 4-7:

Handshake Interface for Multiplexed Converters

2

3

XTAL1

XTAL2

+5V

1 T0

2

4 RESET

21-24,

5

6

SS

P20 - P27

INT μPD8748H/49H

35-38

8

CMOS

Microcomputer

GND 7 EA

10 WR

9 PSEN

11 ALE

+5V 25 PROG

+5V 26 VDD

+5V 39 T1

+5V 40 VCC

P14 - P17 31-34 5

P13 30

P12 29

P11 28

P10 27

GND 20 GND

DB0 - DB7 12-19

RD 8

+5V 40 V+

REF IN- 39

–

GND 1 GND

17 TEST

REF CAP- 38

REF CAP+ 37

1μF

External

Reference

Other I/O

REF IN+ 36

IN HI 35

HI LO 34

1MΩ

0.01μF

+

+

Input

–

TC7109A

COM 33

INT 32

AZ 31

26 RUN/HOLD

BUFF 30

CINT

CAZ 0.15μF

0.33μF

Analog

GND

2 STATUS

REF OUT 29

RINT

18 LBEN

19 HBEN

V- 28 -5V

SEND 27

20kΩ 0.2 VREF

10 kΩ 1 VREF

BUFF OSC OUT 25

3-8 B9 - B12,

6

POL, OR

OSC SEL 24 GND

23

OSC OUT

3.58MHz

8

8

9-16

20

B1 - B8

CE/LOAD

OSC IN 22

MODE 21

Crystal

FIGURE 4-8:

Connection Diagram

© 2006 Microchip Technology Inc.

DS21456C-page 21

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