ht9320b Holtek Semiconductor Inc., ht9320b Datasheet
ht9320b
Available stocks
Related parts for ht9320b
ht9320b Summary of contents
Page 1
... The HT9320 series are offered in six different versions. The different functions of the six versions are listed in the selection table. The HT9320A, HT9320H versions provide the on-hook store function; the HT9320B ver- sion provides the LCD interface function; the HT9320K version provides the keytone function; the HT9320L ver- sion provides both the LCD interface function and IDD Rev ...
Page 2
... Selection Table Function Memory Hold- Hand- LCD Flash Dialing Line Free Interface Function Part No. Control SA, R HT9320A M1~M20 Digit Control SA, R HT9320B M1~M20 Digit Control SA, R HT9320C M1~M20 Digit SA, R HT9320H Digit M1~M20 Control SA, R HT9320K M1~M20 Digit Control SA, R HT9320L ...
Page 3
Pin Assignment Keyboard Information HT9320A/B/C/K Rev. 1.10 HT9320 Series HT9320H 3 October 1, 2002 ...
Page 4
Memory dialing vs. keyboard form table One-Touch Dialing Output Memory Keyboard M1~M10 M1 ~ M10 M11~M20 M11 ~ M20 Pin Description Internal Pin Name I/O Connection These pins form keyboard matrix which can perform keyboard input de- ...
Page 5
Internal Pin Name I/O Connection This pin is a Schmitt trigger input structure. Active low. Applying a negative going pulse to this pin can toggle the HDO output once. CMOS IN HDI I An external RC network is recommended for ...
Page 6
Approximate internal connection circuits Absolute Maximum Ratings Supply Voltage ........................................... 0. Input Voltage .............................. V 0 Note: These are stress ratings only. Stresses exceeding the range specified under Absolute Maximum Ratings may cause substantial damage ...
Page 7
... Conditions DD =2V 0.2 OH =0.5V 0.2 OL MODE pin is connected MODE pin is opened A resistor is linked between R2 and C1 (HT9320B/C/K/L) M/B=VSS (HT9320A) M/B=VDD (HT9320H) No resistor is linked between R2 and C1 (HT9320B/C/K/L) M/B=Floating (HT9320A) M/B=VSS (HT9320H) 40 (10pps) M/B ratio=40:60 20 (20pps) 33 (10pps) M/B ratio=33:66 17 (20pps) 7 HT9320 Series Typ. Max. Unit 200 k 40 ...
Page 8
... R2 and C1 (HT9320B/C/K/L) 40 (10pps) M/B=Floating (HT9320A) 20 (20pps) M/B=VSS (HT9320H) A resistor is linked between R2 and C1 (HT9320B/C/K/L) 66 (10pps) M/B=VSS (HT9320A) 33 (20pps) M/B=VDD (HT9320H) No resistor is linked between R2 and C1 (HT9320B/C/K/L) 60 (10pps) M/B=Floating (HT9320A) 30 (20pps) M/B=VSS (HT9320H) Pulse mode (HT9320K) Pulse mode (HT9320K) f Test Conditions Min. Conditions DD 0.45V DD =0 ...
Page 9
... Inter-digit- R K51 Pause Time for 800ms (HT9320A /B/C/K) 10pps R K51 International Normal dialing R K61 Direct Dialing R (unlock) K71 Lock Selection (HT9320L) M/B ratio selection table HT9320A M/B Pin M/B Ratio (%) VSS 33.3:66.6 Floating 40:60 HT9320B/C/K/L R M/B Ratio (%) K12 No 40:60 Yes 33.3:66.6 HT9320H M/B Pin M/B Ratio (%) VDD 33.3:66.6 VSS 40:60 9 October 1, 2002 Default = 3. 3. ...
Page 10
Flash function/time (duration) selection table HT9320A/B/C/K/L Flash Flash Time R R K13 K14 Function No No Control No Yes Digit Yes No Digit Yes Yes Digit HT9320H Flash Flash Time M/B Pin Function (T VSS Digit 600ms VDD Digit 100ms ...
Page 11
Lock function (HT932L) This function aims to detect lock dialing numbers to pre- vent from an unauthorized long distance call. The dialing output of this chip is disabled if the first input key after on-off hook is the lock number ...
Page 12
SA Pressing this key can save the preceding dialing tele- phone numbers. The saved number is redialed pressed again. SA will also redial the saved number the first key pressed at the off-hook state. ...
Page 13
Keyboard operation The following operations are described under an on-off-hook or on-hook condition with the hand-free active condition. Rev. 1.10 HT9320 Series 13 October 1, 2002 ...
Page 14
Rev. 1.10 HT9320 Series 14 October 1, 2002 ...
Page 15
Rev. 1.10 HT9320 Series 15 October 1, 2002 ...
Page 16
Rev. 1.10 HT9320 Series 16 October 1, 2002 ...
Page 17
Rev. 1.10 HT9320 Series 17 October 1, 2002 ...
Page 18
Timing Diagrams Normal dialing Pulse mode Tone mode Rev. 1.10 HT9320 Series 18 October 1, 2002 ...
Page 19
Dialing with Pause key Pulse mode Tone mode Rev. 1.10 HT9320 Series 19 October 1, 2002 ...
Page 20
Flash key operation Pulse Tone operation Rev. 1.10 HT9320 Series 20 October 1, 2002 ...
Page 21
One key redial operation CLOCK & DOUT operating Rev. 1.10 HT9320 Series 21 October 1, 2002 ...
Page 22
Application Circuits Application circuit 1 Rev. 1.10 HT9320 Series 22 October 1, 2002 ...
Page 23
Application circuit 2 Rev. 1.10 HT9320 Series 23 October 1, 2002 ...
Page 24
Application circuit 3 Rev. 1.10 HT9320 Series 24 October 1, 2002 ...
Page 25
Application circuit 4 Rev. 1.10 HT9320 Series 25 October 1, 2002 ...
Page 26
Application circuit 5 Rev. 1.10 HT9320 Series 26 October 1, 2002 ...
Page 27
Package Information 28-pin DIP (600mil) outline dimensions Symbol Min. A 1445 B 535 C 145 D 125 595 I 635 0 Rev. 1.10 HT9320 Series Dimensions in mil Nom. Max. 1465 555 155 145 ...
Page 28
SKDIP (300mil) outline dimensions Symbol Min. A 1085 B 253 C 125 D 125 295 I 330 0 Rev. 1.10 HT9320 Series Dimensions in mil Nom. Max. 1105 263 135 145 20 70 ...
Page 29
... Tel: 510-252-9880 Fax: 510-252-9885 http://www.holmate.com Copyright Ó 2002 by HOLTEK SEMICONDUCTOR INC. The information appearing in this Data Sheet is believed to be accurate at the time of publication. However, Holtek as- sumes no responsibility arising from the use of the specifications described. The applications mentioned herein are used ...