tc7109a Microchip Technology Inc., tc7109a Datasheet - Page 19

• Manufacturer Part Number: tc7109a
• Description: 12-bit ?-compatible Analog-to-digital Converters
• Manufacturer: Microchip Technology Inc.

FIGURE 4-4:
FIGURE 4-5:
© 2006 Microchip Technology Inc.
Analog In
Analog In
GND
GND
TC7109A
TC7109A
MODE CE/LOAD
HBEN
Full Time Parallel Interface to
TC7109A Handshake Interface to
RUN/HOLD
RUN/HOLD
CE/LOAD
LBEN
POL, OR
POL, OR
STATUS
B
B
B
B
9
MODE
9
SEND
1
1
- B
- B
- B
- B
12
12
8
8
1mF
6
8
(See Text)
STB
+5V
6
8
STB
10kW
A
IBF
A
A
PC6
PB7 - PB0
PC4
PA5 - PA0
RD WR D7 - D0
PA7 - PA0
PC4
PC5
PC
PC6
PC7
RD WR D7 - D0
μ
PD8748H/494 Microcontrollers
μPD8255A
μ
PD8748H/494 Microcontrollers
μPD8255A
(Mode 1)
Address Bus
Control Bus
Data Bus
A0 - A1
Address Bus
Control Bus
CS
Data Bus
A0 - A1
PC6
CS
PC3
INTR
A
INTR
INTR
μPD8748H/49H
TC7109/A
μPD8748H/49H
DS21456C-page 19