HT1622

HT1622/HT1622G RAM Mapping 32´8 LCD Controller for I/O MCU PATENTED PAT No. : 099352 Features · Operating voltage: 2.7V~5.2V · R/W address auto increment · Built-in RC oscillator · Two selectable buzzer frequencies (2kHz or 4kHz) · 1/4 bias, 1/8 duty, frame frequency is 64Hz · Power down command reduces power consumption · Max. 32´8 patterns, 8 commons, 32 segments · Software configuration feature · Built-in internal resistor type bias generator · Data mode and Command mode instructions · 3-wire serial interface · Three data accessing modes · 8 kinds of time base or WDT selection · VLCD pin to adjust LCD operating voltage · Time base or WDT overflow output · 44/52/64-pin LQFP packages HT1622G: Gold bumped chip · Built-in LCD display RAM General Description HT1622 is a peripheral device specially designed for I/O type MCU used to expand the display capability. The max. display segment of the device are 256 patterns (32´8). It also supports serial interface, buzzer sound, Watchdog Timer or time base timer functions. The HT1622 is a memory mapping and multi-function LCD controller. The software configuration feature of the HT1622 make it suitable for multiple LCD applications including LCD modules and display subsystems. Only three lines are required for the interface between the host controller and the HT1622. The HT162X series have many kinds of products that match various applications. Selection Table HT162X HT1620 HT1621 HT1622 HT16220 HT1623 HT1625 HT1626 COM 4 4 8 8 8 8 16 SEG 32 32 32 32 48 64 48 Built-in Osc. ¾ Ö Ö ¾ Ö Ö Ö Crystal Osc. Ö Ö ¾ Ö Ö Ö Ö Rev. 2.70 1 November 25, 2014 PATENTED HT1622/HT1622G Block Diagram D is p la y R A M O S C I C S C o n a n T im C ir c R D W R tro l d in g u it C O M 0 C O M 7 L C D D r iv e r / B ia s C ir c u it D A T A S E G 0 S E G 3 1 V D D V L C D V S S B Z T o n e F re q u e n c y G e n e ra to r B Z W a tc h d o g T im e r a n d T im e B a s e G e n e r a to r IR Q Pin Assignment S E G S E G S E G S E G S E G S E G S E G S E G S E G S E G S E G 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 2 2 2 3 4 4 4 3 4 2 4 1 4 0 3 9 3 8 3 7 3 6 3 5 3 4 1 2 3 3 3 3 1 3 2 S E G S E G C O M C O M C O M C O M C O M C O M C O M C O M T 3 1 0 7 6 5 4 3 2 1 0 S E G S E G S E G S E G S E G S E G S E G S E G S E G S E G S E G S E G S E G 1 9 2 0 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 3 0 3 1 5 2 5 1 5 0 4 9 4 8 4 7 4 6 4 5 4 4 4 3 4 2 4 1 4 0 1 3 9 3 8 2 3 7 3 3 6 4 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 3 0 3 1 3 2 5 1 7 1 6 1 5 1 4 1 3 1 2 1 1 1 0 9 8 7 6 5 4 3 4 2 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 2 2 2 3 2 4 2 5 2 6 9 1 1 3 H T 1 6 2 2 6 4 L Q F P -A 1 8 7 1 2 8 0 1 1 7 4 3 4 2 4 1 4 0 3 9 3 8 3 7 3 6 3 5 3 4 3 3 1 9 6 1 0 6 S E G S E G S E G S E G S E G S E G S E G S E G S E G S E G S E G S E G S E G N C N C N C 5 9 4 4 4 8 6 5 4 5 4 3 H T 1 6 2 2 5 2 L Q F P -A 7 3 4 3 3 3 2 3 1 3 0 2 9 2 8 2 7 7 4 6 2 6 8 3 1 3 5 G 1 G 1 G 1 G 1 G 1 G 1 G 1 G 1 G 1 G 9 G 8 G 7 G 6 4 8 4 7 2 0 5 S E S E S E S E S E S E S E S E S E S E S E S E S E 6 4 6 3 6 2 6 1 6 0 5 9 5 8 5 7 5 6 5 5 5 4 5 3 5 2 5 1 5 0 4 9 1 S E G S E G S E G S E G S E G S E G S E G C O M C O M C O M C O M C O M C O M N C C O M C O M C S R D W R D A T A V S S O S C I V D D V L C D IR Q T 1 T 2 T 3 C O M 0 N 4 N N 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 2 2 2 3 N 1 1 2 4 C S N C R D W R D A T A V S S O S C I V D D V L C D IR Q B Z N C B Z T 1 T 2 T 3 C C C C 2 0 2 5 1 0 5 2 1 9 6 2 2 2 6 2 3 8 7 2 4 2 7 8 2 5 7 2 8 2 6 6 9 2 7 2 9 H T 1 6 2 2 4 4 L Q F P -A 2 8 5 1 0 2 9 3 0 1 1 3 0 4 1 2 3 1 S E G S E G S E G S E G S E G S E G S E G S E G S E G S E G S E G 3 2 S E G S E G S E G S E G S E G S E G S E G S E G S E G S E G S E G S E G C S R D W R D A T A V S S O S C I V D D V L C D IR Q T 1 T 2 3 2 1 0 S E G S E G S E G S E G S E G S E G C O M C O M C O M C O M C O M C O M C O M 5 4 3 2 1 0 7 6 5 4 3 2 1 Rev. 2.70 2 November 25, 2014 PATENTED HT1622/HT1622G Pad Assignment S E G 2 6 S E G 2 5 S E G 2 4 S E G 2 3 S E G 2 2 S E G 2 1 S E G 2 0 5 4 5 3 5 2 5 1 5 0 4 9 4 8 4 7 4 6 4 5 4 4 4 3 3 D A T A V S O S V D V L C IR S E G 2 7 S E G 2 8 2 S E G 2 9 R D W R S E G 3 0 1 S E G 3 1 C S 4 5 S C I D D Q 6 7 8 9 2 1 2 2 2 4 2 5 2 6 2 7 2 8 S E G S E G S E G S E G S E G S E G 1 9 S E G S E G S E G S E G 1 3 3 2 3 1 3 0 S E G 9 S E G 8 S E G 7 1 8 1 7 1 6 1 5 1 4 1 2 1 1 1 0 2 9 S E G 5 S E G 6 2 3 S E G 4 S E G 3 2 0 S E G 2 1 9 C O M 6 1 8 C O M 7 1 7 S E G 1 1 2 1 3 1 4 1 5 1 6 S E G 0 T 1 T 2 T 3 C O M 0 C O M 5 1 1 C O M 4 B Z C O M 3 1 0 C O M 2 B Z C O M 1 (0 ,0 ) 4 2 4 1 4 0 3 9 3 8 3 7 3 6 3 5 3 4 3 3 Chip size: 94 ´ 98 (mil)2 Bump height: 18mm ± 3mm Min. Bump spacing: 23.102mm Bump size: 76 ´ 76mm2 * The IC substrate should be connected to VDD in the PCB layout artwork. Rev. 2.70 3 November 25, 2014 PATENTED HT1622/HT1622G Pad Coordinates Unit: mm Pad No. X Y Pad No. X Y 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 -1077.075 -1077.075 -1077.075 -1077.075 -1077.037 -1077.075 -1077.037 -1077.075 -1077.075 -1077.075 -1077.075 -1077.075 -1077.075 -1077.075 -1077.075 -1077.075 -589.281 -490.179 -304.799 -205.699 -20.319 78.736 225.736 324.836 423.856 522.957 621.975 1090.589 905.211 806.109 594.542 359.680 260.745 162.710 63.734 -34.789 -238.247 -519.705 -677.315 -776.416 -875.435 -974.536 -1073.554 -1129.575 -1129.575 -1129.575 -1129.575 -1129.575 -1129.575 -1129.575 -1129.575 -1129.575 -1129.575 -1129.575 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 721.077 820.095 1076.900 1076.900 1076.900 1076.900 1076.900 1076.900 1076.900 1076.900 1076.900 1076.900 1076.900 1076.900 1076.900 213.669 114.650 15.550 -83.469 -182.570 -281.590 -380.690 -479.710 -578.810 -677.829 -776.931 -875.949 -1129.575 -1129.575 -141.904 -42.885 56.215 155.234 254.335 353.354 452.456 551.474 650.576 749.594 848.695 947.714 1046.816 1127.150 1127.150 1127.150 1127.150 1127.150 1127.150 1127.150 1127.150 1127.150 1127.150 1127.150 1127.150 Pad Description Pad No. 1 Pad Name CS I/O Description I Chip selection input with Pull-high resistor. When the CS is logic high, the data and command read from or written to the HT1622 are disabled. The serial interface circuit is also reset. But if CS is at logic low level and is input to the CS pad, the data and command transmission between the host controller and the HT1622 are all enabled. 2 RD I READ clock input with Pull-high resistor. Data in the RAM of the HT1622 are clocked out on the falling edge of the RD signal. The clocked out data will appear on the data line. The host controller can use the next rising edge to latch the clocked out data. 3 WR I WRITE clock input with Pull-high resistor. Data on the DATA line are latched into the HT1622 on the rising edge of the WR signal. 4 DATA I/O Serial data input or output with Pull-high resistor 5 VSS ¾ Negative power supply, ground 6 OSCI I 7 VDD ¾ 8 VLCD I LCD operating voltage input pad If the system clock comes from an external clock source, the external clock source should be connected to the OSCI pad. Positive power supply 9 IRQ O Time base or Watchdog Timer overflow flag, NMOS open drain output 10, 11 BZ, BZ O 2kHz or 4kHz tone frequency output pair 12~14 T1~T3 I Not connected 15~22 COM0~COM7 O LCD common outputs 23~54 SEG0~SEG31 O LCD segment outputs Rev. 2.70 4 November 25, 2014 PATENTED HT1622/HT1622G Absolute Maximum Ratings Supply Voltage ...........................VSS-0.3V to VSS+5.5V Storage Temperature ............................-50°C to 125°C Input Voltage.............................VSS-0.3V to VDD+0.3V Operating Temperature...........................-40°C to 85°C Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maximum Ratings² may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability. D.C. Characteristics Symbol Parameter VDD Operating Voltage IDD1 Operating Current Ta=25°C Test Conditions VDD Conditions ¾ ¾ 3V 5V IDD2 3V Operating Current 5V ISTB No load/LCD ON On-chip RC oscillator No load/LCD OFF On-chip RC oscillator 3V Standby Current No load, Power Down Mode 5V VIL 3V Input Low Voltage 3V Input High Voltage IOH1 IOL2 IOH2 IOL3 IOH3 IOL4 IOH4 RPH Unit 2.7 ¾ 5.2 V ¾ 80 210 mA ¾ 135 415 mA ¾ 8 30 mA ¾ 20 55 mA ¾ 1 8 mA ¾ 2 16 mA 0 ¾ 0.6 V 0 ¾ 1.0 V 2.4 ¾ 3.0 V 4.0 ¾ 5.0 V 3V VOL=0.3V 0.9 1.8 ¾ mA 5V VOL=0.5V 1.7 3.0 ¾ mA 3V VOH=2.7V -0.9 -1.8 ¾ mA 5V VOH=4.5V -1.7 -3.0 ¾ mA 3V VOL=0.3V 200 450 ¾ mA 5V VOL=0.5V 250 500 ¾ mA 3V VOH=2.7V -200 -450 ¾ mA 5V VOH=4.5V -250 -500 ¾ mA 3V VOL=0.3V 15 40 ¾ mA 5V VOL=0.5V 100 200 ¾ mA 3V VOH=2.7V -15 -30 ¾ mA 5V VOH=4.5V -45 -90 ¾ mA 3V VOL=0.3V 15 30 ¾ mA 5V VOL=0.5V 70 150 ¾ mA 3V VOH=2.7V -6 -13 ¾ mA 5V VOH=4.5V -20 -40 ¾ mA 100 200 300 kW 50 100 150 kW BZ, BZ, IRQ BZ, BZ DATA DATA LCD Common Sink Current LCD Common Source Current LCD Segment Sink Current LCD Segment Source Current 3V Pull-high Resistor DATA, WR, CS, RD 5V Rev. 2.70 Max. DATA, WR, CS, RD 5V IOL1 Typ. DATA, WR, CS, RD 5V VIH Min. 5 November 25, 2014 PATENTED HT1622/HT1622G A.C. Characteristics Symbol Parameter Ta=25°C Test Conditions Min. Typ. Max. Unit On-chip RC oscillator 24 32 40 kHz External clock source ¾ 32768 ¾ Hz On-chip RC oscillator 48 64 80 Hz ¾ External clock source ¾ 64 ¾ Hz ¾ n: Number of COM ¾ n/fLCD ¾ sec 4 ¾ 150 kHz 4 ¾ 300 kHz ¾ ¾ 75 kHz ¾ ¾ 150 kHz CS 500 600 ¾ ns Write mode 3.34 ¾ 125 Read mode 6.67 ¾ ¾ Write mode 1.67 ¾ 125 Read mode 3.34 ¾ ¾ VDD Conditions 3V fSYS System Clock 5V ¾ 3V fLCD LCD Frame Frequency tCOM LCD Common Period fCLK1 Serial Data Clock (WR pin) 5V 3V Duty cycle 50% 5V 3V fCLK2 Serial Data Clock (RD pin) Duty cycle 50% 5V Serial Interface Reset Pulse Width (Figure 3) tCS ¾ 3V tCLK WR, RD Input Pulse Width (Figure 1) 5V ms ms t r, t f Rise/Fall Time Serial Data Clock Width (Figure 1) ¾ ¾ ¾ 120 160 ns tsu Setup Time for DATA to WR, RD Clock Width (Figure 2) ¾ ¾ 60 120 ¾ ns th Hold Time for DATA to WR, RD, Clock Width (Figure 2) ¾ ¾ 500 600 ¾ ns tsu1 Setup Time for CS to WR, RD Clock Width (Figure 3) ¾ ¾ 500 600 ¾ ns th1 Hold Time for CS to WR, RD Clock Width (Figure 3) ¾ ¾ 700 800 ¾ ns On-chip RC oscillator 1.5 2.0 2.5 kHz On-chip RC oscillator 3 4 5 kHz 20 ¾ ¾ ms 0.05 ¾ ¾ V/ms 1 ¾ ¾ ms 3V Tone Frequency (2kHz) 5V fTONE 3V Tone Frequency (4kHz) 5V tOFF VDD OFF Times (Figure 4) ¾ VDD drop down to 0V tSR VDD Rising Slew Rate (Figure 4) ¾ ¾ tRSTD Delay Time after Reset (Figure 4) ¾ Note: ¾ 1. If the conditions of Power-on Reset timing are not satisfied in power On/Off sequence, the internal Power-on Reset (POR) circuit will not operate normally. 2. If the VDD drops below the minimum voltage of operating voltage spec. during operating, the conditions of Power-on Reset timing must be satisfied also. That is, the VDD must drop to 0V and keep at 0V for 20ms (min.) before rising to the normal operating voltage. Rev. 2.70 6 November 25, 2014 PATENTED HT1622/HT1622G V A L ID D A T A D B tf W R , R D C lo c k 9 0 % 5 0 % 1 0 % tr tC V tC L K G N D W R , R D C lo c k W R , R D C lo c k V D D S V th G N D 0 V 1 V 5 0 % F ir s t C lo c k tS D D 5 0 % u 1 D D G N D Figure 2 tC ts V 5 0 % Figure 1 C S D D G N D th tsu D D L K V 5 0 % tO R F F D D 0 .9 V D D tR S T D G N D L a s t C lo c k C S Figure 3 Figure 4. Power-on Reset Timing RC Oscillator Frequency Deviation Operating Temperature -40°C 0°C 25°C 70°C 75°C 80°C 85°C Average Deviation 19.85% 2.98% 0 -21.14% -22.50% -23.82% -25.35% Rev. 2.70 7 November 25, 2014 PATENTED HT1622/HT1622G Functional Description Display Memory - RAM Structure remain at logic low level until the CLR WDT or the IRQ DIS command is issued. The static display RAM is organized into 64´4 bits and stores the display data. The contents of the RAM are directly mapped to the contents of the LCD driver. Data in the RAM can be accessed by the READ, WRITE and READ-MODIFY-WRITE commands. The following is a mapping from the RAM to the LCD patterns. If an external clock is selected as the source of system frequency, the SYS DIS command turns out invalid and the power down mode fails to be carried out until the external clock source is removed. Buzzer Tone Output Time Base and Watchdog Timer (WDT) A simple tone generator is implemented in the HT1622. The tone generator can output a pair of differential driving signals on the BZ and BZ which are used to generate a single tone. The time base generator and WDT share the same divided (¸256) counter. TIMER DIS/EN/CLR, WDT DIS/EN/CLR and IRQ EN/DIS are independent from each other. Once the WDT time-out occurs, the IRQ pin will C O M 7 C O M 6 C O M 5 C O M 3 C O M 4 C O M 2 C O M 1 C O M 0 S E G 0 1 0 S E G 1 3 2 S E G 2 5 4 S E G 3 7 6 S E G 3 1 6 3 6 2 D 3 D 2 D 1 D 0 A d d r D a ta D 3 D 2 D 1 D 0 A d d r e s s 6 B its (A 5 , A 4 , ...., A 0 ) A d d r D a ta D a ta 4 B its (D 3 , D 2 , D 1 , D 0 ) RAM Mapping T im e B a s e C lo c k S o u r c e T IM E R ¸ 2 5 6 V C L R T im e r W D T ¸ 4 D D Q D C K C L R IR Q E N /D IS W D T E N /D IS IR Q E N /D IS R W D T Timer and WDT Configurations Rev. 2.70 8 November 25, 2014 PATENTED Command Format If successive commands have been issued, the command mode ID can be omitted. While the system is ope r a t i n g i n a n o n - su cce ssi ve co m m a n d o r a non-successive address data mode, the CS pin should be set to ²1² and the previous operation mode will be reset also. The CS pin returns to ²0², a new operation mode ID should be issued first. The HT1622 can be configured by the software setting. There are two mode commands to configure the HT1622 resource and to transfer the LCD display data. The following are the data mode ID and the command mode ID: Mode ID READ Operation Data 110 WRITE Data 101 READ-MODIFY-WRITE COMMAND Name Data 101 Command 100 HT1622/HT1622G Command Code Function TONE OFF 0000-1000-X Turn-off tone output TONE 4K 010X-XXXX-X Turn-on tone output, tone frequency is 4kHz TONE 2K 0110-XXXX-X Turn-on tone output, tone frequency is 2kHz Timing Diagrams READ Mode (Command Code : 1 1 0) C S W R R D D A T A 1 0 1 A 5 A 4 A 3 A 2 A 1 A 0 D 0 D 1 D 2 D 3 M e m o ry A d d re s s 1 (M A 1 ) D a ta (M A 1 ) 1 1 0 A 5 A 4 A 3 A 2 A 1 A 0 D 0 D 1 D 2 D 3 M e m o r y A d d r e s s 2 ( M A 2 )D a t a ( M A 2 ) READ Mode (Successive Address Reading) C S W R R D D A T A Rev. 2.70 1 1 0 A 5 A 4 A 3 A 2 A 1 A 0 D 0 D 1 D 2 D 3 D 0 D 1 D 2 D 3 D 0 D 1 D 2 D 3 D 0 D 1 D 2 D 3 D 0 D a ta (M A + 1 ) D a ta (M A + 2 ) D a ta (M A + 3 ) M e m o ry A d d re s s (M A ) D a ta (M A ) 9 November 25, 2014 PATENTED HT1622/HT1622G WRITE Mode (Command Code : 1 0 1) C S W R 1 D A T A 1 0 A 5 A 4 A 3 A 2 A 1 A 0 D 0 D 1 D 2 D 3 M e m o r y A d d r e s s 1 ( M A 1 )D a t a ( M A 1 ) 1 1 0 A 5 A 4 A 3 A 2 A 1 A 0 D 0 D 1 D 2 D 3 M e m o r y A d d r e s s 2 ( M A 2 )D a t a ( M A 2 ) WRITE Mode (Successive Address Writing) C S W R 1 D A T A 1 0 A 5 A 4 A 3 A 2 A 1 A 0 D 0 D 1 D 2 D 3 D 0 D 1 D 2 D 3 D 0 D 1 D 2 D 3 D 0 D 1 D 2 D 3 D 0 D a ta (M A + 1 ) D a ta (M A + 2 ) D a ta (M A + 3 ) M e m o ry A d d re s s (M A ) D a ta (M A ) READ-MODIFY-WRITE Mode (Command Code : 1 0 1) C S W R R D D A T A 1 1 0 A 5 A 4 A 3 A 2 A 1 A 0 D 0 D 1 D 2 D 3 D 0 D 1 D 2 D 3 M e m o r y A d d r e s s 1 ( M A 1 )D a t a ( M A 1 ) D a ta (M A 1 ) 1 0 1 A 5 A 4 A 3 A 2 A 1 A 0 D 0 D 1 D 2 D 3 M e m o r y A d d r e s s 2 ( M A 2 )D a t a ( M A 2 ) READ-MODIFY-WRITE Mode (Successive Address Accessing) C S W R R D D A T A Rev. 2.70 1 0 1 A 5 A 4 A 3 A 2 A 1 A 0 D 0 D 1 D 2 D 3 D 0 D 1 D 2 D 3 D 0 D 1 D 2 D 3 D 0 D 1 D 2 D 3 D 0 D 1 D 2 D 3 D 0 D a ta (M A ) D a ta (M A + 1 ) D a ta (M A + 1 ) D a ta (M A + 2 ) M e m o ry A d d re s s (M A ) D a ta (M A ) 10 November 25, 2014 PATENTED HT1622/HT1622G Command Mode (Command Code : 1 0 0) C S W R D A T A 1 0 0 C 8 C 7 C 6 C 5 C 4 C 3 C 2 C 1 C 0 C 8 C 7 C 6 C 5 C 4 C 3 C 2 C 1 C 0 C o m m a n d 1 C o m m a n d ... C o m m a n d i C o m m a n d o r D a ta M o d e Mode (Data and Command Mode) C S W R D A T A C o m m a n d o r D a ta M o d e A d d re s s a n d D a ta C o m m a n d o r D a ta M o d e A d d re s s a n d D a ta C o m m a n d o r D a ta M o d e A d d re s s a n d D a ta R D Rev. 2.70 11 November 25, 2014 PATENTED HT1622/HT1622G Application Circuits C S * V D D R D H T 1 6 2 2 D A T A * V R V L C D W R M C U * B Z P ie z o R IR Q B Z C O M 0 ~ C O M 7 S E G 0 ~ S E G 3 1 1 /4 B ia s , 1 /8 D u ty L C D Note: P a n e l The connection of IRQ and RD pin can be selected depending on the requirement of the MCU. The voltage applied to VLCD pin must be equal to or lower than VDD. Adjust VR to fit user's LCD panel display voltage (VLCD). Adjust R (external pull-high resistance) to fit user¢s time base clock. Command Summary Name ID Command Code D/C Function Def. READ 1 1 0 A5A4A3A2A1A0D0D1D2D3 D Read data from the RAM WRITE 1 0 1 A5A4A3A2A1A0D0D1D2D3 D Write data to the RAM READ-MODIFYWRITE 1 0 1 A5A4A3A2A1A0D0D1D2D3 D Read and Write data to the RAM SYS DIS 1 0 0 0000-0000-X C Turn off both system oscillator and LCD bias Yes generator SYS EN 1 0 0 0000-0001-X C Turn on system oscillator LCD OFF 1 0 0 0000-0010-X C Turn off LCD display LCD ON 1 0 0 0000-0011-X C Turn on LCD display TIMER DIS 1 0 0 0000-0100-X C Disable time base output Yes WDT DIS 1 0 0 0000-0101-X C Disable WDT time-out flag output Yes TIMER EN 1 0 0 0000-0110-X C Enable time base output WDT EN 1 0 0 0000-0111-X C Enable WDT time-out flag output TONE OFF 1 0 0 0000-1000-X C Turn off tone outputs CLR TIMER 1 0 0 0000-1101-X C Clear the contents of the time base generator CLR WDT 1 0 0 0000-1111-X C Clear the contents of WDT stage RC 32K 1 0 0 0001-10XX-X C System clock source, on-chip RC oscillator EXT 32K 1 0 0 0001-11XX-X C System clock source, external clock source TONE 4K 1 0 0 010X-XXXX-X C Tone frequency output: 4kHz TONE 2K 1 0 0 0110-XXXX-X C Tone frequency output: 2kHz IRQ DIS 1 0 0 100X-0XXX-X C Disable IRQ output IRQ EN 1 0 0 100X-1XXX-X C Enable IRQ output Rev. 2.70 12 Yes Yes Yes Yes November 25, 2014 PATENTED Name ID Command Code D/C HT1622/HT1622G Function Def. F1 1 0 0 101X-0000-X C Time base clock output: 1Hz The WDT time-out flag after: 4s F2 1 0 0 101X-0001-X C Time base clock output: 2Hz The WDT time-out flag after: 2s F4 1 0 0 101X-0010-X C Time base clock output: 4Hz The WDT time-out flag after: 1s F8 1 0 0 101X-0011-X C Time base clock output: 8Hz The WDT time-out flag after: 1/2s F16 1 0 0 101X-0100-X C Time base clock output: 16Hz The WDT time-out flag after: 1/4s F32 1 0 0 101X-0101-X C Time base clock output: 32Hz The WDT time-out flag after: 1/8s F64 1 0 0 101X-0110-X C Time base clock output: 64Hz The WDT time-out flag after: 1/16s F128 1 0 0 101X-0111-X C Time base clock output: 128Hz The WDT time-out flag after: 1/32s TEST 1 0 0 1110-0000-X C Test mode, user don¢t use. NORMAL 1 0 0 1110-0011-X C Normal mode Note: Yes Yes X : Don¢t care A5~A0 : RAM address D3~D0 : RAM data D/C : Data/Command mode Def. : Power on reset default All the bold forms, namely 1 1 0, 1 0 1, and 1 0 0, are mode commands. Of these, 1 0 0 indicates the command mode ID. If successive commands have been issued, the command mode ID except for the first command will be omitted. The source of the tone frequency and of the time base or WDT clock frequency can be derived from an on-chip 32kHz RC oscillator or an external 32768Hz clock. Calculation of the frequency is based on the system frequency sources as stated above. It is recommended that the host controller should initialize the HT1622 after power on reset, for power on reset may fail, which in turn leads to the malfunctioning of the HT1622. Rev. 2.70 13 November 25, 2014 PATENTED HT1622/HT1622G Package Information Note that the package information provided here is for consultation purposes only. As this information may be updated at regular intervals users are reminded to consult the Holtek website for the latest version of the package information. Additional supplementary information with regard to packaging is listed below. Click on the relevant section to be transferred to the relevant website page. · Further Package Information (include Outline Dimensions, Product Tape and Reel Specifications) · Packing Meterials Information · Carton information Rev. 2.70 14 November 25, 2014 PATENTED HT1622/HT1622G 44-pin LQFP (10mm´10mm) (FP2.0mm) Outline Dimensions H C D G 2 3 3 3 I 3 4 2 2 F A B E 1 2 4 4 K a J 1 Symbol A Dimensions in inch Min. Nom. Max. ¾ 0.472 BSC ¾ B ¾ 0.394 BSC ¾ C ¾ 0.472 BSC ¾ D ¾ 0.394 BSC ¾ E ¾ 0.032 BSC ¾ F 0.012 0.015 0.018 G 0.053 0.055 0.057 H ¾ ¾ 0.063 I 0.002 ¾ 0.006 J 0.018 0.024 0.030 K 0.004 ¾ 0.008 a 0° ¾ 7° Symbol Rev. 2.70 1 1 Dimensions in mm Min. Nom. Max. A ¾ 12.00 BSC ¾ B ¾ 10.00 BSC ¾ C ¾ 12.00 BSC ¾ D ¾ 10.00 BSC ¾ E ¾ 0.80 BSC ¾ F 0.30 0.37 0.45 G 1.35 1.40 1.45 H ¾ ¾ 1.60 I 0.05 ¾ 0.15 J 0.45 0.60 0.75 K 0.09 ¾ 0.20 a 0° ¾ 7° 15 November 25, 2014 PATENTED HT1622/HT1622G 52-pin LQFP (14mm´14mm) Outline Dimensions C H D 3 9 G 2 7 I 2 6 4 0 F A B E 1 4 5 2 K J 1 Symbol A Dimensions in inch Min. Nom. Max. 0.622 0.630 0.638 B 0.547 0.551 0.555 C 0.622 0.630 0.638 D 0.547 0.551 0.555 E ¾ 0.039 BSC ¾ F 0.015 ¾ 0.019 G 0.053 0.055 0.057 H ¾ ¾ 0.063 I 0.002 ¾ 0.008 J 0.018 ¾ 0.030 K 0.005 ¾ 0.007 a 0° ¾ 7° Symbol A Rev. 2.70 1 3 Dimensions in mm Min. Nom. Max. 15.80 16.00 16.20 B 13.90 14.00 14.10 C 15.80 16.00 16.20 D 13.90 14.00 14.10 E ¾ 1.0 BSC ¾ F 0.39 ¾ 0.48 G 1.35 1.40 1.45 H ¾ ¾ 1.60 I 0.05 ¾ 0.20 J 0.45 ¾ 0.75 K 0.13 ¾ 0.18 a 0° ¾ 7° 16 November 25, 2014 PATENTED HT1622/HT1622G 64-pin LQFP (7mm´7mm) Outline Dimensions C D 4 8 G 3 3 H I 3 2 4 9 F A B E 6 4 1 7 K a J 1 6 1 Symbol Nom. Max. A ¾ 0.354 BSC ¾ B ¾ 0.276 BSC ¾ C ¾ 0.354 BSC ¾ D ¾ 0.276 BSC ¾ E ¾ 0.020 BSC ¾ F 0.005 0.007 0.009 G 0.053 0.055 0.057 H ¾ ¾ 0.063 I 0.002 ¾ 0.006 J 0.018 0.024 0.030 K 0.004 ¾ 0.008 a 0° ¾ 7° Symbol Rev. 2.70 Dimensions in inch Min. Dimensions in mm Min. Nom. Max. A ¾ 9.00 BSC ¾ B ¾ 7.00 BSC ¾ C ¾ 9.00 BSC ¾ D ¾ 7.00 BSC ¾ E ¾ 0.40 BSC ¾ F 0.13 0.18 0.23 G 1.35 1.40 1.45 H ¾ ¾ 1.60 I 0.05 ¾ 0.15 J 0.45 0.60 0.75 K 0.09 ¾ 0.20 a 0° ¾ 7° 17 November 25, 2014 PATENTED HT1622/HT1622G Copyright Ó 2014 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. Holtek¢s 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. 2.70 18 November 25, 2014