LSI Computer Systems LS7166
The LS7166 is a CMOS, 24-bit counter that can be programmed to operate in several different modes. The IC communicates with external circuits through an 8-bit three state I/O bus. Control and data words are written into the LS7166 through the bus.| Part No. | LS7166 |
|---|---|
| Datasheet | LS7166 Download |
| Manufacturer |  LSI Computer Systems |
| Description | 24-BIT QUADRATURE COUNTER |
| Buy | Stock & Price |
FEATURES
:● Programmable modes are: Up/Down, Binary, BCD, 24 Hour Clock, Divide-by-N, x1 or x2 or x4 Quadrature and Single-Cycle.
● DC to 25MHz Count Frequency.
● 8-Bit I/O Bus for uP Communication and Control.
● 24-Bit comparator for pre-set count comparison.
● Readable status register.
● Input/Output TTL and CMOS compatible.
● 3V to 5.5V operation (VDD - VSS).
● LS7166 (DIP); LS7166-S (SOIC); LS7166-TS24 (24-Pin TSSOP) - See Figure 1
GENERAL DESCRIPTION
: The operating mode is set up by writing control words into internal control registers (see Figure 8). There are three 6-bit and one 2-bit control registers for setting up the circuit functional characteristics. In addition to the control registers, there is a 5-bit output status register (OSR) that indicates the current counter status. In addition to the I/O bus, there are a number of discrete inputs and outputs to facilitate instantaneous hardware based control functions and instantaneous status indication. REGISTERDESCRIPTION
: Internal hardware registers are accessible through the I/O bus (D0 - D7) for READ or WRITE when CS = 0.
