M-959 Clare, M-959 Datasheet

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M-959

Manufacturer Part Number
M-959
Description
IC MONITOR/COUNTER 3STATE 14-DIP
Manufacturer
Clare
Datasheet

Specifications of M-959

Function
Dial Pulse Counter and Hook Status Monitor
Number Of Circuits
1
Voltage - Supply
5V
Current - Supply
2mA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Through Hole
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power (watts)
-
Interface
-
Features
DS-M959-R3
Pin Diagram
Block Diagram
Time-guarded dial pulse counting
10 or 20 PPS dialing speeds pin selectable
Tri-state data outputs
Valid data output strobe
Data strobe control for use in interrupt-driven
environments
Independent hook status monitoring
Low-power CMOS construction
www.clare.com
Dial Pulse Counter and Hook Status Monitor
Ordering Information
Description
The M-959 is a low-power dial pulse counter and
hook status monitor. Contained in a 14-pin package,
the M-959 requires no external components except a
single 3.579 MHz television color burst crystal.
The M-959 is typically connected to a loop current
sensing circuit, which is connected in series with the
voice pair (Tip and Ring) of a telephone line. The M-
959 receives pulses from the loop current sense cir-
cuit and translates them into logic level outputs
indicating hook status and decoded dialed digits.
Logic inputs to the M-959 select dialed digit speeds
and control Data and Strobe outputs supporting bus
interrupt driven implementations.
Part #
M-959
Description
14-pin plastic DIP
M-959
1

Related parts for M-959

M-959 Summary of contents

Page 1

... Logic inputs to the M-959 select dialed digit speeds and control Data and Strobe outputs supporting bus interrupt driven implementations. ...

Page 2

... Absolute Maximum Ratings DC Supply Voltage Any Input Voltage Relative Any Input Voltage Relative Operating Temperature Range Storage Temperature Range * Exceeding these ratings may permanently damage the M-959. Specifications Parameter Signal Timing Break Recognition Spurious Break Rejection Make Recognition Interdigit Time (IDT) ...

Page 3

... Strobe Control Input. Momentary high during digit valid time resets STROBE latch output low until next valid digit is received. Internally pulled low. Strobe Digit Valid Output. Indicates valid digit data present on D3 through D0. Active high. Timing Diagram Rev. 3 Function Digit Dialed www.clare.com M-959 3 ...

Page 4

... M-959 Mechanical Dimensions 4 Tolerances Inches Min A A1 .015 b .014 b2 .045 C .008 D .735 E .300 E1 .240 e 100 BSC ec 0˚ L .115 www.clare.com Metric (mm) Max Min Max .210 5.33 .38 .022 .36 .56 .070 1.14 1.78 .014 .20 .36 .775 18.67 19.70 .325 7.62 8.26 .280 6.10 7 ...

Page 5

... Clare’s product may result in direct physical harm, injury, or death to a person or severe property or environmental damage. Clare, Inc. reserves the right to discontinue or make changes to its products at any time without notice. Specification: DS-M959-R3 ©Copyright 2001, Clare, Inc. ...

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