tc7109a Microchip Technology Inc., tc7109a Datasheet - Page 18

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

TC7109/A
FIGURE 4-2:
FIGURE 4-3:
DS21456C-page 18
Analog In
Analog In
GND
GND
GND
MODE
HBEN
TC7109A
TC7109A
MODE CE/LOAD
HBEN
Converter Select
RUN/HOLD
CE/LOAD
POL, OR
Three-Stating Several TC7109As to a Small Bus
Full Time Parallel Interface to
Byte Select Flags
B
LBEN
B
9
1
RUN/HOLD
- B
- B
LBEN
POL, OR
STATUS
12
B
8
B
9
1
- B
- B
6
8
12
8
+5V
See Text
Analog In
6
8
+5V
GND
MODE
HBEN
PB7 - PB0
PC5
PA5 - PA0
RD WR D7 - D0 A0 - A1
TC7109A
μ
Converter Select
PD8748H/494 Microcontrollers
RUN/HOLD
CE/LOAD
μPD8255A
POL, OR
(Mode 0)
B
LBEN
B
9 -
1
- B
B
12
8
Address Bus
Control Bus
Data Bus
6
8
CS
+5V
Analog In
GND
© 2006 Microchip Technology Inc.
MODE
HBEN
TC7109A
μPD8748H/49H
Converter Select
RUN/HOLD
CE/LOAD
POL, OR
B
LBEN
B
9
1
- B
- B
12
8
6
8
+5V