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參數(shù)資料
| 型號(hào)： | ST62T42BQ6 |
| 英文描述： | 8-BIT MICROCONTROLLER ( MCU ) WITH OTP. ROM. FASTROM. EPROM. LCD DRIVER. EEPROM. A/D CONVERTER AND 64 PINS |
| 中文描述： | 8位微控制器（MCU）的與檢察官辦公室。光盤(pán)。 FASTROM。存儲(chǔ)器。液晶顯示驅(qū)動(dòng)程序。 EEPROM中。的A / D轉(zhuǎn)換器和64個(gè) |
| 文件頁(yè)數(shù)： | 48/74頁(yè) |
| 文件大?。?/td> | 733K |
| 代理商： | ST62T42BQ6 |
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ST62T46B/E46B
4.5 LCD CONTROLLER-DRIVER
On-chip LCD driver includes all features required
for LCD driving, including multiplexing of the com-
mon plates. Multiplexing allows to increase display
capability without increasing the number of seg-
ment outputs. In that case, the display capability is
equal to the product of the number of common
plates with the number of segment outputs.
A dedicated LCD RAM is used to store the pattern
to be displayed while control logic generates ac-
cordingly all the waveforms sent onto the segment
or common outputs. Segments voltage supply is
MCU supply independant, and included driving
stages allow direct connection to the LCD panel.
The multiplexing ratio (Number of common plates)
and the base LCD frame frequency is software
configurable to achieve the best trade-off con-
trast/display capability for each display panel.
The 32KHz clock used for the LCD controller is
derivated from the MCU’s internal clock and there-
fore does not require a dedicated oscillator. The
division factor is set by the three bits HF0..HF2 of
the LCD Mode Control Register LCDCR as sum-
marized in
Table 15
for recommanded oscillator
quartz values. In case of oscillator failure, all seg-
ment and common lines are switched to ground to
avoid any DC biasing of the LCD elements.
Table 15. Oscillator Selection Bits
Notes
:
1.
defined in this table cause the LCD to operate at a
reference frequency different from 32.768KHz, ac-
cording to division factor of
Table 15
.
2.
It is not recommended to select an internal
frequency lower than 32KHz as the clock supervi-
sor circuit may switch off the LCD peripheral if low-
er frequency is detected.
The usage f
values different from those
Figure 25. LCD Block Diagram
MCU
Oscillator
f
OSC
HF2 HF1 HF0
Division Factor
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
Clock disabled: Display off
Auxiliary 32KHz oscillator
Reserved
32
64
128
256
Reserved
1.048MHz
2.097MHz
4.194MHz
8.388MHz
DATA BUS
CONTROL
REGISTER
LCD
RAM
SEGMENT
DRIVER
COMMON
DRIVER
VOLTAGE
DIVIDER
CONTROLLER
CLOCK
SELECTION
VLCD
1/3
VLCD VLCD
2/3
BACKPLANES
SEGMENTS
f
int
OSC 32KHz
(When available)
VR02099
32KHz
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ST62T45BQ6 | 功能描述:8位微控制器 -MCU OTP EPROM 8K RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線(xiàn)寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| ST62T45Q6 | 制造商:STMicroelectronics 功能描述:8BIT MCU - Bulk |
| ST62T46BB6 | 功能描述:8位微控制器 -MCU OTP EPROM 4K SPI RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線(xiàn)寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| ST62T52CB6 | 功能描述:8位微控制器 -MCU OTP EPROM 2K No Intf RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線(xiàn)寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| ST62T52CM3 | 制造商:STMicroelectronics 功能描述: 制造商:STMicroelectronics 功能描述:MCU 8BIT ST6 CISC 1836BYTE EPROM 5V 16SOIC - Rail/Tube |
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