Document
( DataSheet : www.DataSheet4U.com )
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→T 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
www.DataSheet4U.com
www.DataSheet4U.com
NT91315XL Series
Keyboard Assignments
C1 R1 R2 R3 R4
C2
C3
GND ST A/L F1 RD/P
C4
1 4 7 */T M1
2 5 8 0 M2
3 6 9 # M3
RD P F2 F3 SAVE VDD
D
COL1
COL2 SW12 D2 IN4148 D3 IN4148
COL3 SW13
Flash time, F1: 600ms( default ), F2: 300ms, F3: 100ms Diode options (switch closed): D1. Lock 0 D2. Pause time 2.2sec D3. Flash time 300ms for F1 D4. Lock 0, 9 D5. Pulse dialing 10-N D6. Pulse dialing N+1 D7. Lock 0, 168 D8. Flash time 100ms for F1 D9. Dialing rate 10pps & 20pps selectable, M/B ratio 1/2 D10. Lock all digits
SW11 D1 IN4148 ROW1 SW14 D4 IN4148 ROW2 SW17 D7 IN4148 ROW3 SW20 D10 IN4148 ROW4 D8 IN4148 D5 IN4148
SW15 D6 IN4148 SW18 D9 IN4148
SW16
SW19
2
NT91315XL Series
Block Diagram
DIALING BUFFER
R1 : R4 KEYBOARD DECODER C1 : C4
REDIAL BUFFER
DP
SAVE MEMORY
DIALING LOGIC
XUMTE
MEMORIES
DTMF GENERATOR TONE
MODE IN HFI INPUTS HK HDI
CONTROL LOGIC TIMING GENERATOR
OSCI OSOO
KT
HFO
HDO
3
NT91315XL Series
* Comments
Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only. Functional operation of this device at these or any other conditions above those indicated in the operational sections of this specification is not implied and exposure to absolute maximum rating conditions for extended periods may affect device reliability.
Absolute Maximum Ratings*
Supply Voltage (VDD) . . . . . . . . . . . . . .-0.3V to +6.0V Input Voltage (VIN) . . . . . .. . . . VSS - 0.3V to VDD + 0.3V Output Voltage (VOUT) . . . . . . .VSS - 0.3V to VDD + 0.3V Output Voltage (VOUT)( DP , XMUTE ) . . . . . . . . .<1.2V Tone Output Current (ITONE) . . . . . . . . . . . . . . <50 mA Power Dissipation (PD) . . . . . . . . . . . . . . . . . <500 mW Operating Temperature (TOP) . . . . . . . .-20°C to +70°C Storage Temperature (Tstg) . . . . . . . . .-40°C to +125°C
DC Electrical Characteristics (VDD = 2.5V, VSS = 0V, Fosc = 3.579MHz, Top = 25°C, unless otherwise specified.)
Parameter Operating Voltage Symbol VDD Min. 2.0 2.0 Memory Retention Voltage Memory Retention Current Operating Current VMR IMR IDDP IDDT Standby Current ISC 0.3 0.8 0.5 1.0 2.0 0.5 20 Input Voltage VIH VIL
R1 - R4 Input Current
Typ.
Max. 5.5 5.5
Unit V
Conditions PULSE mode TONE mode
Test CKT. A
V µA mA VDD = 1.0V, HK = VDD All outputs unloaded PULSE mode TONE mode µA
HK =VDD=1.5V HK = VSS
A
All outputs unloaded All outputs unloaded No key selected ---
0.8 0 16 720 560 2.4
1 0.2
VDD
IR VOC VOR
µA mVp.p Column Row µA VDD = 2.5V RL = 5K
C D
Tone Out Voltage
HFI Pull Low Current
IHFI
VDD = 2.5V (Note 1) HFI pin connected to 0V
C
4
NT91315XL Series
DC Electrical Characteristics (continued)
Parameter HFO, HDO Source Current HFO, HDO, KT , XMUTE Sink Current
DP Sink Current
Symbol IOH1 IOL1 IOL2 DIS%
Min. 0.25 0.8 0.8
Typ. 0.85 2.5 2.2 1
Max.
Unit mA mA mA
Conditions VDD = 2.5V VOH = VDD - 0.4V VDD = 2.5V VOL = 0.4V VOL = 0.4V * (See note below)
Test CKT. B B B
Distortion *Note:
5
%
100 * (V12+V22+ . . . +Vn2)1/2 DIS% = (VIL2+ VIH2)1/2
1. V1 . . . . Vn are the.