LS7166_06 LSI [LSI Computer Systems], LS7166_06 Datasheet - Page 10

• Manufacturer Part Number: LS7166_06
• Description: 24-BIT QUADRATURE COUNTER
• Manufacturer: LSI [LSI Computer Systems]

7166-110103-10
(LOAD CTR/LOAD LATCH) LCTR/LLTC
(AB GATE/LOAD LATCH) ABGT/RCTR
LS7166 BLOCK DIAGRAM
(CONTROL /DATA INPUT) C/D
(GND) V
(+5V) V
(CHIP SELECT INPUT) CS
(DATA-BUS)
DD
SS
FIGURE 8.
(WRITE INPUT) WR
(COUNT INPUT) A
(COUNT INPUT) B
(READ INPUT) RD
20
5
8-15
18
19
6
4
7
3
2
1
PR/OL
ADDRESS
BUFFER
INPUT
BUFFER
AND
DECODE
LOGIC
I/O
D0 - D7
D0, D6,D7
D0 - D7
D0 - D7
D0 - D7
D0 -D7
UP CLOCK
DN CLOCK
D0 - D7
PR/OL ADDRESS
OCCR
MCR
B16 - B23
B8 - B15
QR
ICR
B0 - B7
D0 -D4
PR2
PR1
PR0
B0 - B23
CONTROL
LOGIC
N1
CNTR
STATUS
LOGIC
N1=N2
OSR
N2
COMPARATOR
Q0 -Q23
16
17
CY (CARRY OUT)
BW (BORROW OUT)
OL0
OL2
OL1