tenx technology GENERAL DESCRIPTION TM6820 embedded high-performa
|
|
|
Top Searches for this datasheet
TM6820
tenx technology
GENERAL DESCRIPTION TM6820 embedded high-performance 4-bit microcomputer with driver. contains necessary functions, such 4-bit parallel processing ALU, ROM, RAM, ports, timer, clock generator, dual clock operation, Resistance Frequency Converter(RFC), panel driver, driver, look-up table, watchdog timer matrix scanning circuitry signal chip. FEATURE power dissipation. Powerful instruction (142 instructions). Binary addition, subtraction, adjust, logical operation direct index addressing mode. Single-bit manipulation (set, reset, decision branch). Various conditional branch. working registers manipulation. Table look-up. driver data transfer. Memory capacity. capacity capacity 2048 bits. bits.
Microcontroller
driver output. common outputs segment outputs drive segments). Duty, Duty, Duty Duty selected mask option. Bias Bias selected mask option. Single instruction turn segments. Segment outputs(SEG1~35) could defined CMOS P_open drain output type mask option. Input/output ports. Port pins (with internal pull-low), muxed with SEG24~27. Port pins (with internal pull-low), muxed with SEG28~31. Port pins (with internal pull-low/low-level-hold), muxed with SEG32~35. port built input signal chattering prevention circuitry. level subroutine nesting. Interrupt function. External factor Internal factor (INT pin, Port IOC). (Pre-Divider, Timer1, Timer2 RFC).
Built-in panel driver. ELC, (Muxed with SEG28, SEG29).
tenx technology, inc.
V1.4 10/08/01
TM6820
Built Alarm, clock single tone melody generator. BZB, (Muxed with SEG30, SEG31). Built-in Converter circuit. (Muxed with SEG24~SEG27). 6-bit programmable timer with programmable clock source. Watch timer. Built-in Voltage doubler, tripler charge pump circuit. Dual clock operation slow clock oscillation defined X'tal external type oscillator mask option. fast clock oscillation defined 3.58MHz ceramic resonator, internal external type oscillator mask option. HALT function. STOP function. Built-in control circuitry switch internal operating voltage order perform power consumption provide stable operating voltage. Built-in Battery Detect function Heavy Loading protection function
APPLICATION Timer Calendar Calculator Thermometer
tenx technology, inc.
V1.4 10/08/01
TM6820
BLOCK DIAGRAM
B1-4 ELC,ELP BZ,BZB A1-4 RR,RT,RH C1-4 COM1-5 SEG1-35 VL1-3
VBAT POWER SWITCH Lower Battery Detect
B-PORT DRIVER ALARM
DRIVER A-PORT C-PORT SEGMENT BITS DATA
FREQUENCY GENERATOR
INDEX 256(16-N) BITS
DATA BITS
PRE-DIVIDER
BITS PRESET TIMER CONTROL CIRCUIT RESET
LEVELS STACK
INSTRUCTION DECODER MASK 128N BITS
OSCILLATOR
BITS PROGRAM COUNTER
CUP1,2
XTIN,OUT
TM6820 BLOCKDIAGRAM
N:1->16
DIAGRAM
(ROM)
tenx technology, inc.
V1.4 10/08/01
TM6820
substrate chip should connected GND. COORDINATE Name XOUT CUP1 CUP2 COM1 COM2 COM3 COM4 COM5 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 197.5 77.5 77.5 77.5 77.5 77.5 77.5 77.5 77.5 77.5 77.5 77.5 77.5 77.5 427.5 542.5 657.5 772.5 887.5 1002.5 1117.5 1232.5 1347.5 1462.5 1577.5 1692.5 1602.5 1576.5 1446.5 1331.5 1216.5 1101.5 986,5 871.5 756.5 641.5 526.5 411.5 296.5 166.5 77.5 77.5 77.5 77.5 77.5 77.5 77.5 77.5 77.5 77.5 77.5 77.5 Name SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24/IOA1/CX SEG25/IOA2/RR SEG26/IOA3/RT SEG27/IOA4/RH SEG28/IOB1/ELC SEG29/IOB2/ELP SEG30/IOB3/BZB SEG31/IOB4/BZ SEG32/IOC1 SEG33/IOC2 SEG34/IOC3 SEG35/IOC4 RESET TEST VBAT 1822.5 1822.5 1822.5 1822.5 1822.5 1822.5 1822.5 1822.5 1822.5 1822.5 1822.5 1822.5 1822.5 1822.5 1692.5 1577.5 1462.5 1347.5 1232.5 1117.5 1002.5 887.5 772.5 657.5 542.5 427.5 312.5 77.5 207.5 322.5 437.5 552.5 667.5 782.5 897.5 1012.5 1127.5 1242.5 1357.5 1472.5 1602.5 1602.5 1602.5 1602.5 1602.5 1602.5 1602.5 1602.5 1602.5 1602.5 1602.5 1602.5 1602.5 1602.5
tenx technology, inc.
V1.4 10/08/01
TM6820
DESCRIPTION
Name VBAT VL1,2,3 RESET Description Positive supply voltage. Positive Back-up voltage. Connected 0.1u capacitor GND. supply voltage. Connect 0.1u capacitors between VL1,2,3 GND. Input external reset request signal, built-in internal pull-down resistor. Reset cycle time defined "PH15/2" "PH12/2" mask option. Reset Type defined "Level reset" "Pulse reset" mask option. Input external request signal. Falling edge rising edge triggered defined mask option. Internal pull-down pull-up resistor defined mask option. Test signal input pin. Switching pins supply driving voltage VL1,2,3 pins. Connect CUP1 CUP2 pins with non-polarized electrolytic capacitor when chip operated bias mode. BIAS mode application, leave these pins opened. Time base counter frequency (clock specified. alternating frequency. Alarm signal frequency) system clock oscillation. 32KHz Crystal oscillator. FAST mode, connect external resistor could compose oscillator(mask option). SLOW mode, connect external resistor could compose oscillator(mask option). Output pins driving common pins panel. Output pins driving panel segment. Input Output port (Muxed with SEG24~SEG27) Input Output port (Muxed with SEG28~SEG31) Input Output port (Muxed with SEG32~SEG35) input output pins application. (Muxed with SEG24~SEG27) Output port panel driver. (Muxed with SEG28,SEG29) Output port alarm, clock single tone melody generator. (Muxed with SEG30~SEG31) Negative supply voltage.
TESTA CUP1,2
XOUT
COM1~5 SEG1-35 IOA1-4 IOB1-4 IOC1-4 RR/RT/RH ELC/ELP BZB/BZ
tenx technology, inc.
V1.4 10/08/01
TM6820
ABSOLOUTE MAXIMUM RATINGS
70,GND= Name Maximum Supply Voltage Maximum Input Voltage Maximum output Voltage Maximum Operating Temperature Maximum Storage Temperature Symbol VBAT Vout Topg Tstg Range -0.3 -0.3 VBAT +0.3 -0.3 BAK,VL1/2/3+0.3 +125 Unit
POWER CONSUMPTION
Ta=-20 70,GND= Name HALT mode Condition Only 32.768KHz Crystal oscillator operating, IHALT1 without loading. mode, VBAT =1.5V, Only 32.768KHz Crystal oscillator operating, IHALT2 without loading. mode, VBAT =3.0V, ISTOP Sym. Min. Typ. Max. Unit
STOP mode
Note When oscillator function operating, current consumption will depend frequency oscillation.
tenx technology, inc.
V1.4 10/08/01
TM6820
ALLOWABLE OPERATING CONDITIONS
70,GND= Name Oscillator Start-Up Voltage Oscillator Sustain Voltage Supply Voltage Supply Voltage Input Voltage Input Voltage Input Voltage Input Voltage Input Voltage Input Voltage Operating Freq VBAT VBAT Vih1 Vil1 Vih2 Vil2 Vih3 Vil3 Fopg1 Fopg2 Crystal Mode Mode Mode OSCIN Crystal Mode Mode Mode Crystal Mode Symb. Condition Min. Max. Unit
VBAT-0.7 VBAT+0.7 -0.7 0.8xBAK 0.8xBAK 0.2xBAK 0.2xBAK
ELECTRICAL CHARACTERISTICS
at#1:VBAT=1.2V(Ag); at#2:VBAT=2.4V(Li):
Input Resistance
Name Level Hold Tr.(IOC) Sym. Rllh1 Rllh2 IOA/B/C Pull-Down Rmad1 Rmad2 Pull-up Rintu1 Rintu2 Pull-Down Rintd1 Rintd2 Pull-Down Rres1 Rres2 Condition Vi=0.2VBAT,#1 Vi=0.2VBAT,#2 Vi=VBAT,#1 Vi=VBAT#2 Vi=VBAT,#1 Vi=VBAT,#2 Vi=GND,#1 Vi=GND,#2 Vi=GND VBAT,#1 Vi=GND VBAT,#2 Min. Typ. Max. 1000 1000 1000 1000 1000 1000 Unit Kohm Kohm Kohm Kohm Kohm Kohm Kohm Kohm Kohm Kohm
tenx technology, inc.
V1.4 10/08/01
TM6820
Output Characteristics
Name Symb. Condition Port Min. SEG1~35 Typ. Max. Unit Voh1c Ioh=-200uA,#1 Output Voltage Voh2c Ioh=-1mA,#2 Vol1c Output Voltage Vol2c Iol=400uA,#1 Iol=2mA,#2
Analog Circuit Characteristics operation mode) (VBAT=3.0V Li-B 1.5V Ag-B, GND=0V, fosc=32,768Hz,Ta=25)
Name Internal Voltage Symb. Condition Connects load resistance between panel load) Connects load resistance between panel load) 1/2Bias Display Mode(VL3 connect VL2) Connects load resistance between panel load) 1/3Bias Display Mode Connects load resistance between panel load) voltage VBLD VBLD circuit response time TBLD Li-B Ag-B 2.25 1.10 2.40 1.20 2.55 1.30 3xVL1 x0.9 3xVL1 +0.1 2xVL1 x0.9 2xVL1 +0.1 2xVL1 x0.9 2xVL1 +0.1 Min. 0.95 Typ. 1.05 Max. 1.15 Unit
tenx technology, inc.
V1.4 10/08/01
TM6820
TYPICAL APPLICATION CIRCUIT
This application circuit simply example, guaranteed work.
Panel
32.768KHz Crystal XOUT
COM1~5, SEG1~35 CUP1
0.1u
CUP2 VBAT
0.1u 0.1u 0.1u 0.1u 1.5V
0.1u
TM6820
0.1u
RESET
Plant
External INT.
Port
IOA,IOB,IOC Choke BZ(BZB) Buzzer
power mode, Bias, Duty
tenx technology, inc.
V1.4 10/08/01
Other recent searches
WMS256K4-XDSX - WMS256K4-XDSX WMS256K4-XDSX Datasheet
RM912 - RM912 RM912 Datasheet
PE43502 - PE43502 PE43502 Datasheet
NESG3031M05 - NESG3031M05 NESG3031M05 Datasheet
L6562 - L6562 L6562 Datasheet
DMV1500H - DMV1500H DMV1500H Datasheet
BID2108 - BID2108 BID2108 Datasheet
AVR1008 - AVR1008 AVR1008 Datasheet
Privacy Policy | Disclaimer
© 2012 Datasheet Archive
