R2F+LCD MCU. TTU712 Datasheet

TTU712 MCU. Datasheet pdf. Equivalent


TONTEK TTU712
Preliminary
TTR712/ TTU712
R2F+LCD MCU
2005/11/21
Page1--33
Ver.0.2


TTU712 Datasheet
Recommendation TTU712 Datasheet
Part TTU712
Description R2F+LCD MCU
Feature TTU712; Preliminary TTR712/ TTU712 R2F+LCD MCU 2005/11/21 Page:1--33 Ver.:0.2 Preliminary TTR712/ TTU.
Manufacture TONTEK
Datasheet
Download TTU712 Datasheet




TONTEK TTU712
Preliminary
TTR712/ TTU712
. General Description:................................................. 3
. Features: ........................................................... 3
. Application: ........................................................ 3
. Pin Assignment ...................................................... 4
. Pin Description (TTU711)............................................. 5
. Pin Description (TTU712/ TTR712)..................................... 6
. AC / DC Characteristics.............................................. 7
1 Absolutely max. ratings .................................................................................................................7
2 D.C. Characteristics .......................................................................................................................7
3 A.C. Characteristics .......................................................................................................................8
. Block Diagram ....................................................... 9
. Function Description................................................ 10
1 Map of memory and I/Os.............................................................................................................10
2 CONTROL REGISTER TABLE .................................................................................................12
3 SYSTEM CONTROL REGISTER..............................................................................................13
4 Low voltage detector ...................................................................................................................14
5 SYSTEM CLOCK CONTROL REGISTER ...............................................................................14
6 LCD CONTROL REGISTER .....................................................................................................16
7 I/O REGISTER............................................................................................................................16
A. Port A ...................................................................................................................................16
B. Port B ...................................................................................................................................17
C. Port C/DTTU712/ TTR712..........................................................................................19
8 RFC/TMR circuit.........................................................................................................................20
9 TIMER BASE CONTROL REGISTER......................................................................................23
10 WDT CONTROL REGISTER ....................................................................................................23
11 EL timing .....................................................................................................................................24
12 LCD RAM ...................................................................................................................................25
13 LCD PATTERN ...........................................................................................................................27
A. 1/4 duty, 1/2 bias..................................................................................................................27
B. 1/3 duty, 1/2 bias..................................................................................................................28
. Application Circuit................................................. 29
. Mask Option Table................................................... 31
. Application Note.................................................... 32
. Order Information................................................... 32
. Package Information................................................. 33
. Revise History ..................................................... 33
2005/11/21
Page2--33
Ver.0.2



TONTEK TTU712
Preliminary
TTR712/ TTU712
. General Description:
The MCU provides high cost-performance for thermometer application. It designs by LSI high
technology with low power CMOS process.
. Features:
— Use 4 bits microprocessor core
— Operating Voltage:
- (TTU711/ TTU712) 2.2v-5.5v
- (TTR712) 2.4v-5.5v
— Low speed oscillator:
--- 32768Hz Crystal oscillator(內建電容,有快速起振功能,當讀 PS resister 後,
切換為正常 mode
----RC oscillator(from 32/64/128/256Khz,外掛電阻)(MASK OPTION) ,
— High speed system oscillator:
- Built-in internal RC oscillator ( ~ 4MHz)
- external adjustable type RC oscillator (150K~ 4MHz)
- 400KHz ~ 8MHz resonator/crystal oscillator
— R2F Oscillator
- 10Khz-100Khz RC oscillator
— User ROM (TTU711)1K*16, RAM 64*4(TTU712/TTR712) 4K*16, RAM 128*4
— Built-in (TTU711) 2 stacks(TTU712/ TTR712)4 stacks
— Built-in 12-bit programmable timer with internal overflow interrupt
— Built-in 12-bit counter for R2F circuit
— Built-in watch dog timer
— Built-in time base timer
— Built-in EL control timing
— Built-in Buzzer output (2Khz/4Khz/5.3Khz) from low speed clock
— Built-in low battery detect function (LVD with enable ctrl)
— Provide TTU7114 I/O ports, 4 input ports, TTU712/ TTR712) 10 I/O ports, 4 input
ports
— LCD TTU7114COM/14SEGor 3COM/15SEG1/2 biasTTU712/ TTR712)
4COM/31SEG or 3COM/32SEG, 1/4 dutyframe frequency is 64Hz, 1/3 dutyframe
frequency is 86Hz, 1/3 bias for R-type bias, 1/2 bias for C-type bias selected by mask
option
— Provide internal/external reset function
— Provide 64 pin QFP package (TTR712)
. Application:
z TTU711)快速體溫計(4 秒)
z TTU711)室內外溫度計
z TTU711)室內溫度計 + CLOCK
z TTU712/ TTR712)室內外溫度計 + 濕度計 + CLOCK
2005/11/21
Page3--33
Ver.0.2







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