NT91315XL Datasheet, PDF (1/22 Pages) List of Unclassifed Manufacturers – Microcontroller for Monitor

PRELIMINARY
Features
n Tone/Pulse switchable
n 32-digit redial memory
n 32-digit save memory (DL version)
n 3 emergency memory banks (16 digits each)
n 10 indirect memory banks (16 digits each)
n Flash, Pause, P→T can be saved as a digit in
memory
n Chain dialing allowed
n None or (0) or (0, 9) or (0, 168) or all digits dialing
inhibition (diode option) for PABX system or long
distance dialing lock out
n Pause time 2.2/3.6 sec selectable (diode option)
n 3 pulse dialing number systems N/N+1/10-N (diode
option)
General Description
The NT91315XL series are single-chip silicon gate
CMOS integrated circuits with on-chip oscillators to be
used with a 3.58 MHz crystal or ceramic resonator. They
provide dialing pulse (DP) or dual tone multi-frequency
(DTMF) dialing. A 24-key (5x5-1) matrix keyboard is
used for either DP or DTMF mode. In on-chip RAM, up to
Pin Configurations
a. NT91315AL
b. NT91315BL
NT91315XL Series
Microcontroller for Monitor
n Dialing rate 10pps, M/B ratio 2/3 & 1/2
selectable/dialing rate 10pps & 20pps selectable, M/B
ratio 1/2 (diode option)
n Hands-Free control function with debouncing (BL, CL
& DL version)
n Hold function with debouncing (CL & DL version)
n Key-tone output for dialing access (DL version)
n One-key redial (DL version)
n Flash time 600ms, 300ms, 100ms (DL version)
n Power-up reset circuit provided
n Key release debouncing
n 32-step synthetic tone output for low DTMF output
harmonic distortion
n 16/18/20/22-pin packages
32 digits can be saved for both redial and save functions,
and up to 16 digits can be saved for 3 direct emergency
and 10 indirect dialing memory banks. In DTMF mode, a
small minimum tone duration and minimum inter-tone
pause allows for rapid dialing. Maximum tone duration
depends on the key depression time in manual dialing.
c. NT91315CL
d. NT91315DL
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