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NT91315BL Datasheet

  • NT91315BL

  • Microcontroller for Monitor

  • 22頁(yè)

  • ETC

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NT91315XL Series
PRELIMINARY
Microcontroller for Monitor
Features
n
n
n
n
n
n
n
n
n
n
Tone/Pulse switchable
32-digit redial memory
32-digit save memory (DL version)
3 emergency memory banks (16 digits each)
10 indirect memory banks (16 digits each)
Flash, Pause, P鈫扵 can be saved as a digit in
memory
Chain dialing allowed
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
Pause time 2.2/3.6 sec selectable (diode option)
3 pulse dialing number systems N/N+1/10-N (diode
option)
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
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
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.
Pin Configurations
a. NT91315AL
b. NT91315BL
c. NT91315CL
d. NT91315DL
1

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