LS7166
Description:
Encoder to Microprocessor Interface Chip
Chips
Features:
脴
X4 or X1 resolution multiplication.
脴
Preloadable 24-bit up/down counter.
脴
Choice of two 20-pin packages: SOIC surface mount or DIP (600mil).
脴
X1 or X2 or X4 resolution multiplier.
脴
Binary or BCD.
脴
Divide-by-N.
脴
24-Bit comparator register.
脴
4 control registers.
脴
Readable status register.
脴
8-Bit tri-state I/O bus.
脴
DC to 10 MHz count frequency.
脴
Latched counter outputs.
脴
Input/output TTL & CMOS compatible.
脴
5 volt operation.
脴
200 uA supply current.
脴
No external clock required.
The
LS7166
is an LSI monolithic CMOS building block useful in motion control
applications. The 24-bit multi-mode counter register and logic enables a microproces-
sor to track the speed, direction, and position of an optical incremental shaft encoder.
In addition to an 8-bit data bus, programmable realtime inputs and outputs are provided
for hardware based control functions and status indication.
Note:
US Digital has already designed the ICs on this data sheet into various products.
Please see the
PC7166, AD4-A
and
AD6
data sheets.
Absolute Maximum Ratings:
Parameter
Operating temperature
Storage temperature
Voltage at any input
Supply voltage (VCC)
Min.
0
-65
-.5
Max.
70
150
VCC+.5
7
Units
擄C
擄C
Volts
Volts
Block Diagram of Counter & Registers:
Ordering Information:
DIP Package (300mil):
LS7166-DIP
Surface Mount Package:
LS7166-SOIC
Price:
$11.65 / 1
$9.35 / 25
$7.45 / 100
$6.35 / 500
$5.40 / 1k
Technical Data, Rev. 01.22.01, January 2001
All information subject to change without notice.
phone: 360.260.2468
l
sales: 800.736.0194
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fax: 360.260.2469
email: sales@usdigital.com
l
website: www.usdigital.com
11100 ne 34th circle
l
vancouver, washington 98682 USA
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