TC7109 TelCom, TC7109 Datasheet - Page 17

• Manufacturer Part Number: TC7109
• Description: 12-BIT UP-COMPATIBLE ANALOG-TO-DIGITAL CONVERTERS
• Manufacturer: TelCom

12-BIT P-COMPATIBLE
ANALOG-TO-DIGITAL CONVERTERS
ANALOG
ANALOG
TELCOM SEMICONDUCTOR, INC.
GND
GND
IN
GND
GND
IN
TC7109A
MODE
TC7109A
HBEN
MODE
HBEN
Figure 15. Full-Time Parallel Interface to MCS-48, -80, -85 Microcomputers With Interrupt
CE/LOAD
RUN/HOLD
CE/LOAD
LBEN
RUN/HOLD
POL, OR
LBEN
STATUS
Figure 14. Full-Time Parallel Interface to MCS-48, -80, -85 Microcomputers
B9–B12
POL, OR
STATUS
B1–B8
B9–B12
B1–B8
1 F
(SEE TEXT)
SEE TEXT
STB A
+5V
6
8
6
8
10k
+5V
PA5–PA0
PC6
PB7–PB0
PC4
RD WR
PA5–PA0
PB7–PB0
PC5
RD WR
D7–D0
D7–D0
(MODE 0)
8255
8255
CONTROL BUS
ADDRESS BUS
ADDRESS BUS
CONTROL BUS
DATA BUS
DATA BUS
A0–A1
A0–A1
CS
CS
PC6
INTR A
INTR
8085, 8048, ETC.
8085, 8048, ETC.
8008, 8080,
8008, 8080,
87C48
87C48
TC7109A
TC7109
3-107
1
2
3
4
5
6
7
8