24-Bit Quadrature Counter
(20 Pins, 24-Pins TSSOP)

LS7166B-S, LS7166B-TS, LS7166B

Category: Incremental Encoder Interface, Counters

Status: In Production

Stock Availability: DIP, SOIC

All of our Standard Products are RoHS Compliant

For pricing and availability you may contact us, or request a quote. Most of our standard parts are available for purchase on Digi-Key, and through our Distributors.

Features:

• Programmable count modes: non-quadrature, up/down, quadrature x1, x2, or x4, binary, BCD, 24-hour clock, mod-N and single cycle.
• Up to 40MHz count frequency in non-quandrature mode.
• 24-bit counter, 24-bit preset register and 24-bit comparator.
• 8-bit bi-directional data bus for uC interface.
• Readable status register.
• Carry, borrow, carry toggle, and borrow toggle outputs
• Compare and compare toggle outputs for counter to preset register equality
• Programmable inputs for dynamic hardware control.
• TTL and CMOS compatible IOs.
• Operating voltage: 3V to 5.5V.
• Package types: DIP (LS7166B), SOIC (LS7166B-S), TSSOP (LS7166B-TS24)

Description:

The LS7166B is a CMOS, 24-bit counter which can be programmed to operate in several functional modes. The operating modes are set up by writing configuration data into control registers. There are three 6-bit and one 2-bit control registers for configuring the functional modes. In addition to the control registers there is a 5-bit status register which indicates the instantaneous device status. A 24-bit preset register is available for presetting the counter. It also serves as the division factor in the mod-N count mode. The device communicates with a host controller over an 8-bit 3-state bidirectional data bus through read/written operations. In addition, a number of discrete inputs and outputs facilitate instantaneous hardware control functions and instantaneous status indication.

Ordering Info

Code
Package
Notes

P/N

RoHS Compliant Standard plastic DIP

1, 2, 3

P/N – S

RoHS Compliant Standard SOIC

1, 2, 3, 4

P/N – SW

RoHS Compliant Widebody SOIC option

1, 2, 3, 4

P/N – S14

RoHS Compliant 14-pin SOIC version of 8-pin part

1, 2, 3, 4

P/N – TS

RoHS Compliant TSSOP

1, 2, 3, 4

P/N – TS24

RoHS Compliant 24-pin TSSOP version of 20-pin part

1, 2, 3, 4

Example: LSxxxx-TS = the LSxxxx in the RoHS Compliant TSSOP package-type

Note 1: See Table for package body widths

Note 2: Package outline drawings conform to JEDEC standards

Note 3: Packages shipped in anti-static tubes

Note 4: Tape and Reel option available. Contact factory for details

ADDITIONAL ORDERING OPTIONS:

Probed Wafers (P/N-PW), Waffle Packed Die (P/N-WP)

Package Body Widths
# of Pins
P/N, -C, -CM
mils
-S
mils
-SW
mils
-TS
mils

8

300

150

14

300

150

173

16

300

150

300

173

18

300

300

20

300

300

173

24

600

300

173

28

600

300

173

38

173

40

600

48

240

LSI/CSI