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HT95168
HT95168 Caller ID Telephone IC
Introduction
The HT95168 is a high performance and low cost IC specifically designed for Caller ID telephone applications. The device contains FSK/DTMF receiver, tone/pulse dialer, LCD driver, ringer, real time clock and many more essential features. Besides, it has simple and cost-effective external components which are suitable for high volume production.
Features
* * * * * * * * * * * * * * * * Operating voltage: 2.4V~5.5V DTMF/FSK dual Caller ID standard Stores a maximum of 27 incoming calls (date, time, number) Stores a maximum of 8 outgoing calls (dialing time, number) RTC Indicator (month-day-hour-minute-second) Tone/Pulse dialing 1~99 hours setting for mute function 8-digit area & long distance code screen setting Unauthorized-dialing protection Four-stage ring sound/speech volume adjustment Four-stage LCD brightness adjustment Fixed IP number dialing out (defined by hardware option) Caller ID records, check/delete/call-back Previous edit and immediately dial out Hand-free/redial/pause/flash/Add 0 call back/R key functions Provides chip and package forms
Rev. 1.10
1
March 22, 2004
HT95168 Pin Assignment
CO L3 CO L2 CO L1 CO L0 ROW 3 ROW 2 GND ROW 1 ROW 0 ROUTP ROUTN RDETE COM0 COM1 COM2 COM3 COM4 COM5 COM6 COM7 SEG0 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 8 7 6 5 4 3 2 1 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 CO L4 C ID IN HFC PDETE OSC1 OSC2 XT NC VDD RES DTM F NC NC HFI NC M UTE C ID E N XDP HKS NC SEG 15 SEG 14 SEG 13 SEG 12 SEG 11 SEG 10 SEG9 SEG8
H T95168 5 6 S S O P -A
Rev. 1.10
2
March 22, 2004
HT95168 Pad Assignment
PDETE HFC ROW 3 ROW 2 52 51 GND 1 2 37 ROW 0 ROUTP 4 5 6 ROUTN RDETE 3 36 35 (0 ,0 ) 34 33 32 31 HFI NC M UTE C ID E N XDP HKS DTM F ROW 1 7 8 9 10 11 12 13 14 COM7 15 SEG0 16 17 18 SEG1 SEG2 SEG3 19 SEG4 20 21 22 SEG5 SEG6 SEG7 23 SEG8 24 25 26 SEG9 SEG 10 SEG 11 30 29 28 27 SEG 15 SEG 14 SEG 13 SEG 12 C ID IN CO L4 OSC1 OSC2 CO L1 CO L0 50 49 CO L3 CO L2 48 47 XT
46 45
44 43
42
41
40
39 38
VDD RES
COM0 COM1 COM2 COM3 COM4 COM5 COM6
* The IC substrate should be connected to VSS in the PCB layout artwork.
Rev. 1.10
3
March 22, 2004
HT95168 Pad Description
Pad No. 1 2, 3 4 5 6 7~14 15~30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46~50 51, 52 Pad Name GND ROW1, ROW0 ROUTP ROUTN RDETE COM0~COM7 SEG0~SEG15 HKS XDP CIDEN MUTE NC HFI DTMF RES VDD XT OSC2 OSC1 PDETE HFC CIDIN COL4~COL0 ROW3, ROW2 I/O 3/4 I I/O I/O I O O I O O O 3/4 I O I 3/4 3/4 O I I O I O I Configuration Option 3/4 Pull-high Resistor Input Positive Negative 3/4 3/4 3/4 Low Active High Active 3/4 Low Active 3/4 Power ground Key matrix row lines Ring sound output, volume control Ring sound output, volume control On-hook ring detector, off-hook lock 0 detection LCD common pins LCD segment pins Hook detection Off-hook control Initial state is low Mute function No connection Description
Rising Edge Trigger Hand-free trigger input 3/4 Low Active 3/4 3/4 3/4 3/4 3/4 DTMF generator output Reset pin Power VDD Loop filter pin 32768kHz crystal output 32768kHz crystal input Unauthorized-dialing detection
Rising Edge Trigger Hand-free control pin 3/4 3/4 Pull-high Resistor Input Caller ID signal input Key matrix column lines Key matrix row lines
Key Matrix Description
COL4 (46) ROW3 (51) ROW2 (52) ROW1 (2) ROW0 (3) GND 1 4 7 * Call back/Redial COL3 (47) 2 5 8 0 Flash/ADJ COL2 (48) 3 6 9 # Volume COL1 (49) Up Down Delete Check IP COL0 (50) Pause Set R Key Add 0 Call back Hand-free
Rev. 1.10
4
March 22, 2004
HT95168 Functional Description
Ring Sound/Speech Volume Control
* At On-hook state, press the [Volume] key to adjust the ring sound and each key for changes in the sound volume from loud, medium, low to soft. * At Off-hook state, press the [Volume] key to adjust the speech volume and each key for changes in the volume from loud, medium, low to soft.
Note
The initial setting for ring sound/speech volume is loud.
LCD Brightness Adjustment
At On-hook state, press the [Flash/ADJ] key to adjust the LCD brightness and each key for changes in the state from dim, slightly bright, average to bright.
Note
The initial setting for LCD brightness is slightly bright.
Time Setting
* At On-hook state, press the [Set] key for 2 seconds, the LCD then shows the [Month-Day-Hour-Min-Sec], first the (Month) remains in a flashing state and waiting for adjustments, then press the [Up] or [Down] key to increase or decrease the month from 1 to 12. * Press the [Set] key again, the (Day) remains in a flashing state and waiting for adjustments, then press the [Up] or [Down] key to increase or decrease the day from 1 to 31. * Press the [Set] key again, the (Hour) remains in a flashing state and waiting for adjustments, then press the [Up] or [Down] key to increase or decrease the hour from 0 to 23. * Press the [Set] key again, the (Min) remains in a flashing state and waiting for adjustments, then press the [Up] or [Down] key to increase or decrease the minute from 0 to 59 and the second will be set to zero at the same time.
Note
The initial time setting is [01-01 00-00-00].
Rev. 1.10
5
March 22, 2004
HT95168
Tone/Pulse Mode Setting
The HT95168 provides two kinds of dialing modes, tone mode and pulse mode. At On-hook state, press the [*] key for 2 seconds to select the dialing mode. * Tone Mode
DTMF Output Frequency (Hz) Key Name Specified ROW3 ROW2 ROW1 ROW0 COL4 COL3 COL2 697 770 852 941 1209 1336 1477 Actual 698.8 766.4 847 947.8 1214.4 1331 1470 +0.2% -0.5% -0.5% +0.6% +0.4% -0.3% -0.4% %Error
* Pulse Mode: Pulse rate: 10pps, M/B ratio: 40:60, Pulse to Tone duration: 3.6 seconds
Note
The initial dialing mode setting is tone mode.
Previous Edit and Immediately Dial Out
The HT95168 provides previous edit for dialing convenience and the maximum edit length is 32-digit, once off-hook or hand-free the edited number will be dialed out immediately. Besides, pressing the [Call back/Redial] key or the [Add 0 Call back] key can also be dialed out directly.
Unauthorized-dialing Protection Setting
The meaning of [Unauthorized-dialing] is that the telephone line was illegally shunted by another phone and making the line dial out. * When the protection function is enabled, the HT95168 generates an interference signal to protect the line from being illegally used. * At On-hook state, press the [#] key for 2 seconds, then turn on the LCD [Protection] icon to enable the protection function. * Pressing again the [#] key for 2 seconds, turn off the icon to disable the function.
Note
The initial setting of this function is disabled. To ensure that this function works normally for long distance conditions, fill-in or re-charge the battery.
Rev. 1.10
6
March 22, 2004
HT95168
Mute Function
Sometimes we need quiet and dont want to hear the ring sound at some situations such as during sleeping, meeting or resting. * The HT95168 provides the [Mute] function to stop the ring sound at a certain desired period. * At On-hook state, press the [*], [2], [*], [four-digit number], [#] to set the ring sound mute period. * [Four-digit number] expresses 2-digit hour with 2-digit minute, the setting range is from 99 hours with 99 minutes to 0 hour with 1 minute. * After setting, if the timer counts down to zero, the ring sound function is enabled.
Note
It can receive Caller ID data normally during mute period. The initial setting of this function is disabled.
Area & Long Distance Code Screen Setting
At On hook state, press the [*], [3], [*], [1~8 digits number], [#] to set the local area code or long distance code to store the caller ID phone number. * For example, when pressing the [*] [3] [*] [0755] [#], if theres an incoming call with a number 075527089253, then it will automatically screen the 0755 phone number prefix and it only stores the 27089253. * Press the [*], [3], [*], [#] to disable the screen function and the LCD shows [Loc off].
Dual System Caller ID Setting
* When you plug the phone line into RJ11 jack to power-on reset the telephone, once a first caller ID incoming call occurs, the HT95168 can automatically fix the caller ID receiving format whether FSK or DTMF standard. * You can alternately change the caller ID receiving format by pressing the [*] [*] [#] input. * Each incoming call can be stored with a maximum of 14-digit phone number including one of the digits with automatically added 0 when the phone number length is more than 9-digit, except for area code set to screen 0 and mobile phone number with 13 prefix.
Incoming Call Check and Call Back
The HT95168 stores 27-set incoming calls and each call with 8-digit length or 21-set with 12-digit or 19-set with 14-digit length. * When the [Up] key is pressed, the LCD shows the [Incoming] icon and incoming call records through last in first out, LIFO rule from latest record to earliest record until the end pointer. Each incoming call is divided into two records, first is [Pointer-Date-Time], last is [Incoming phone number which has a maximum of 14-digit]. * Oppositely, when the [Down] key is pressed, it shows first is [Incoming phone number], last is [Pointer-Date-Time] through LIFO rule from the earliest record to the latest record until the end pointer. * Each incoming call record can be erased by pressing the [Delete] key. * Each incoming call record can be dialed out by pressing the [Call back/Redial] key or the [Add 0 Call back] key.
Rev. 1.10
7
March 22, 2004
HT95168
Outgoing Call Check and Call Back
The HT95168 stores 8-set outgoing calls and each call with 14-digit maximum length. * When the [Check] key is pressed, the LCD shows the [Outgoing] icon and outgoing call records through LIFO rule from the latest record to the earliest record until the end pointer. Each outgoing call is divided into two records, first is [Pointer-dialing time], last is [outgoing phone number which has a maximum of 14 digits]. * Each outgoing call record can be erased by pressing the [Delete] key. * Each outgoing call record can be dialed out by pressing the [Call back/Redial] key or the [Add 0 Call back] key.
Redial
The Redial memory stores the latest phone called and the maximum digits are 32. When you press the [Redial] key at off-hook state then the latest number will be dialed out immediately.
Add 0 Call Back
For convenience on having long distance calls, when you press the [Add 0 call back] key , it will automatically dial out and add 0 prefix number before the phone numbers which are incoming call or outgoing call or previous edit call.
Flash
When the [Flash] key is pressed, it will generate a 600ms break time.
R Key
When the [R] key is pressed, it will generate a 95ms break time.
Pause Key
When the [Pause] key is pressed, it will generate a 3.6 sec stop timing during Tone/Pulse dialing.
Long Distance Call Lock Function
When PDETE (Pad 43) is high at off-hook state, all the 0 prefixed phone numbers are inhibited to be dialed out including recently dialed, previously dialed, incoming call call-back, outgoing call call-back and add 0 call back, which means that long distance call function is locked.
Hand-free
The HT95168 provides hand-free function for talking convenience, which replaced the earpiece with a speaker phone.
Rev. 1.10
8
March 22, 2004
HT95168
Fixed IP Number Dialing Out Setting
The [IP] is abbreviation of Internet Phone, which is serviced by ISP vendors. The ISP vendors provide customers with different specific prefix phone number (namely IP number) to dial the international call or long distance call from PSTN through their dedicated Internet to PSTN for the purpose of reducing long distance cost. For dialing out convenience, the HT95168 provides 11-set popular IP numbers defined by hardware as shown below in the diode connection figure. By means of diode connection placement between COL0~COL3 and COL1~COL4, it can define 11 kinds of IP numbers as shown in the table below.
Dnm IP No. 3/4 17909 D01 17920 D02 17931 D12 17930 D03 17921 D13 17951 D23 17950 D04 17908 D14 17911 D24 17910 D34 193
CO L0 D01 CO L1
CO L1
CO L2
CO L3
D02
D12
CO L2
D03
D13
D23
CO L3
D04
D14
D24
D34
CO L4
* At On-hook state, press the [IP on/off] key for 2 seconds, then the LCD shows [IP on] and enable the fixed IP dialing out function. Oppositely, pressing again the [IP on/off] key for 2 seconds, the LCD shows [IP off] and disable this function. * When the IP function is enabled, all long distance phone number prefixed with 0 are automatically dialed out with a specific IP number before the original phone numbers. * For example 1, if no diode connects to Columns and IP function is enabled, checking an incoming call [02152204293] then call back this number. What is the number dialed out? The correct answer is [1790902152204293]. * For example 2, if the diode is crossed to COL1 and COL3 namely D13 and IP function is enabled, checking an outgoing call 07522829029 then call back this number. What is the number dialed out? The correct answer is 1795107522829029.
Note
The initial setting is IP off.
Rev. 1.10
9
March 22, 2004
HT95168 LCD Panel Configuration
The advantages of the LCD panel shown below are bigger display and having a simple-clear feeling.
14 1 A F B G In c o m in g S1 O u tg o in g S2 1 SE SE CO CO CO CO G1 G0 M7 M6 M5 M4 Repeat S3 New S4 M essage S5 P r o te c tio n S6 24 D COM0 COM1 COM2 COM3 SEG 15 SEG 14 SEG 13 S7 E C
PIN COM0 COM1 COM2 COM3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24 COM0
2A 2F 3A 3F
7F 7A 6F 6A 5F 5A 4F 4A 1F 1A COM1 COM2
2B 2G 3B 3G 7G 7B 6G 6B 5G 5B 4G 4B 1G 1B 2C 2E 3C 3E 7E 7C 6E 6C 5E 5C 4E 4C 1E 1C 2D S6 3D 7D 6D 5D S5 4D 1D S7 COM3
COM4 COM4 COM5 COM6 COM7 COM5 COM6
14F 14A 13F 13A 12F 12A 8A 8F 9A 9F 10A 10F 11A 11F 14G 14B 13G 13B 12G 12B 8B 8G 9B 9G 10B 10G 11B 11G 14E 14C 13E 13C 12E 12C 8C 8E 9C 9E 10C 10E 11C 11E COM7 14D S1 13D S2 12D 8D S4 9D S3 10D 11D
Note
The recommended optimal operating voltage for the LCD panel is 0.93VDD and choose 3V/4.5V LCD panel to fit 2-pcs or 3-pcs battery where VDD is 3.2V/4.8V.
Rev. 1.10
10
March 22, 2004
HT95168
1N4007X4 L IN E R25 22M
R67 220kW
D21 4007 R2 220kW Q6 9014 R29 120kW R69 2 .2 M W + E5 47mF
C4 102 R6 150W
M UTE Z1 12V R26 820W C11 103 Q8 9014 R34 100W R28 22kW R11 33kW C9 2A103 M2 R77 510kW L IN E HOOK R50 5 .1 k W R5 220R R32 R33 75W 470W R31 18W C20 333 M UTE + D12 4007 R39 510W Q9 8550
C16 103
D19 4007 IN U S E
D1 D2 Q1 A92 R22 100kW Q3 9014 C23 103 1 S1 XDP V
DD
R54 12M W
T RUZ 201 R C31 2 0 3 /2 5 0 D3 D4 C21 472 L6 D20 4007 R44 390kW C ID IN Q 19 9014 C ID E N R20 620kW D23 4007 GD PDETE LO CK D11 4148 C2 2 2 2 /2 5 0 R10 100kW R1 150kW R37 1 .2 M W R14 1 .5 M W C33 56pF R61 510kW RDETE C 22 103 3V BAT 5 6 7 8 10 D6 D13 4148 R9 1kW R15 1kW D14 4148 1N4007X4 R13 10kW Q 18 5551 E1 1 0 U /1 0 0 R7 100kW ROUTN C27 2A102 + D5 C7 2A102 ROUTP R8 10kW Q 17 5401 E9 2A104 + 11 12 13 14 9 3 4 2 R62 100kW D16 4007 V
DD DD
Q5 A92 R24 3K3 1 R68 10M W R53 39kW Q7 A42 DTM F R57 5 .1 k W R40 5 .1 k W R41 100W D9 4007 E6 470mF E2 4 .7 m F + M1 58db + R37 5 .1 W
E12 1000mF
R38 9 .1 k W
RUZ2 181 R55 47W V R56 + 4 .3 M W E3 220mF CON2 Q2 A42
E4 0 .4 7 m F +
R42 120kW R47 510W C17 103
R58 120kW
Q 11 9015
C19 222 R65 220W C13 104
R46 100kW
R45 1kW R64 220W
Q 12 9014
R63 1M 5
R18 680W
R3 680kW R4 680kW C1 103 R48 2 .2 M W R27 R36 1M W 510kW C14 151
SP1 ROUTN Z2 5 .1 V GD R74 1M W V
DD
R49 1kW R52 1 .5 k W R66 680W ROUTP R43 510W LED + Q 10 9014 R75 510kW Q 13 8050 HKS R19 1kW D22 4007 E8 2A104 IN U S E
C5 2 2 2 /2 5 0 C3 2A103 R59 510kW R60 510kW C10 2A103 C12 1 U /2 5 0 V P IN 2 1 RDETE ROUTN ROUTP GND C ID IN PDETE RE DTM MUT C ID E XD HK LE D S N E S P F V
DD
R12 100kW D10 4007
Q 20 9014
R51 680W
V Q 16 9015
DD
SP R21 1M W RES SP C6 472 T2 SP2 GD C15 1 0 3 /2 5 0 R30 510kW R76 1M W
E7 100mF +
D17 4007 D18 4007 Q 14 8050 GD C8 102
R16 270kW
Application Circuits
D8 D7
Q 15 9014
Rev. 1.10
11
March 22, 2004
PDETE
C ID IN
X1 32768H z R1 15k9 40 XT VDD RES DTM F HFI NC 39 38 37 36 35 MUT C ID E XD HK G1 G1 G1 G1 E N P S SE SE SE SE 5 4 34 MUT C ID E XD HK E RDETE ROUTN ROUTP GND C ID IN PDETE P IN 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 CO N14 RES DTM F V C2 563 C1 472 C3 104
DD
41
42
43
44
45
46
47
48
49
50
51
1 2 3 2 ROW 3 4 5 5 DOW N 6 SET 4 RDETE 7 8 ROW 1 * 0 # ROW 0 12 13 14 RD FLASH VOL HF IP 11 4 5 COM6 COM7 8 0 1 2 3 4 5 6 7 9 3 CHK +0 10 2 9 1 6 3 1 0 TP TN TE 0
UP PAUSE GND ROW ROW ROU ROU RDE COM COM COM COM COM COM
1
7 8 9 DEL R
0 6'#$&
ROW 2
ROW 3 CO L0 CO L1 CO L2 CO L3 CO L4 C ID IN HFC PDETE OSC1 OSC2
ROW 2
52
LED
33 32 31 30 29 3 2 10 11 28 27
N P S
V
DD
COL COL COL COL COL 1 2 3 4
15
16
17
18
19
20
21
22
23
24
25
LCD
26
0
RES DTM F M UTE C ID E N XDP HKS LED SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG
Rev. 1.10
12
March 22, 2004
HT95168
HT95168
Holtek Semiconductor Inc. (Headquarters) No.3, Creation Rd. II, Science Park, Hsinchu, Taiwan Tel: 886-3-563-1999 Fax: 886-3-563-1189 http://www.holtek.com.tw Holtek Semiconductor Inc. (Taipei Sales Office) 4F-2, No. 3-2, YuanQu St., Nankang Software Park, Taipei 115, Taiwan Tel: 886-2-2655-7070 Fax: 886-2-2655-7373 Fax: 886-2-2655-7383 (International sales hotline) Holtek Semiconductor Inc. (Shanghai Sales Office) 7th Floor, Building 2, No.889, Yi Shan Rd., Shanghai, China 200233 Tel: 021-6485-5560 Fax: 021-6485-0313 http://www.holtek.com.cn Holtek Semiconductor Inc. (Shenzhen Sales Office) 43F, SEG Plaza, Shen Nan Zhong Road, Shenzhen, China 518031 Tel: 0755-8346-5589 Fax: 0755-8346-5590 ISDN: 0755-8346-5591 Holtek Semiconductor Inc. (Beijing Sales Office) Suite 1721, Jinyu Tower, A129 West Xuan Wu Men Street, Xicheng District, Beijing, China 100031 Tel: 010-6641-0030, 6641-7751, 6641-7752 Fax: 010-6641-0125 Holmate Semiconductor, Inc. (North America Sales Office) 46712 Fremont Blvd., Fremont, CA 94538 Tel: 510-252-9880 Fax: 510-252-9885 http://www.holmate.com Copyright O 2004 by HOLTEK SEMICONDUCTOR INC. The information appearing in this Data Sheet is believed to be accurate at the time of publication. However, Holtek assumes no responsibility arising from the use of the specifications described. The applications mentioned herein are used solely for the purpose of illustration and Holtek makes no warranty or representation that such applications will be suitable without further modification, nor recommends the use of its products for application that may present a risk to human life due to malfunction or otherwise. Holteks products are not authorized for use as critical components in life support devices or systems. Holtek reserves the right to alter its products without prior notification. For the most up-to-date information, please visit our web site at http://www.holtek.com.tw.
Rev. 1.10
13
March 22, 2004

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