參數(shù)資料
型號： ST6240B
廠商： 意法半導(dǎo)體
英文描述： Replaced by PT6302 : 5Vout 3A Wide Input Positive Step-Down ISR 3-SIP MODULE -40 to 70
中文描述： 8位檢察官辦公室/存儲器與LCD驅(qū)動器，EEPROM和一個微處理器/ D轉(zhuǎn)換器
文件頁數(shù)： 49/76頁
文件大?。?/td> 1280K
代理商： ST6240B
49/76
ST62T40B/E40B
LCD CONTROLLER-DRIVER (Continued)
4.5.1 Multiplexing ratio and frame frequency
setting
Up to 4 common plates COM1..COM4 can be
used for multiplexing ratio ranging from 1/1 to 1/4.
The selection is made by the bits DS0 and DS1 of
the LCDCR as shown in the
Table 20
.
Table 20. Multiplexing ratio
If the 1/1 multiplexing ratio is chosen, LCD seg-
ments are refreshed with a frame frequency Flcd
derived from 32Khz clock with a division ratio de-
fined by the bits LF0..LF2 of the LCDCR.
When a higher multiplexing ratio is set, refreshment
frequency is decreased accordingly (
Table 21
).
Table 21. LCD Frame Frequency Selection
4.5.2 Segment and common plates driving
LCD panels physical structure requires precise
timings and stepped voltage values on common
and segment outputs. Timings are managed by
the LCD controller, while voltages are derivated
from the VLCD value through internal resistive di-
vision. This internal divider is disabled when the
LCD driver is OFF in order to avoid consumption
on VLCD pin.
The 1/3 VLCD and 2/3 VLCD values used in 1/1,
1/3 and 1/4 multiplexing ratio modes are internally
generated and issued on external pins, while 1/2
VLCD value used in 1/2 mode is obtained by exter-
nal connection of the 1/3VLCD and 2/3VLCD pins
(
Figure 27
).
Figure 27. Bias Config for 1/2 Duty
Figure 28. Typical Current consumption on
VLCD Pin (25°C, no load, fLCD=512Hz, mux=1/3-
1/4)
Note
: For display voltages V
LCD
< 4.5V the resis-
tivity of the divider may be too high for some appli-
cations (especially using 1/3 or 1/4 duty display
mode). In that case an external resistive divider
must be used to achieve the desired resistivity.
DS1 DS0
0
0
1
1
Display Mode
1/4 mux.ratio
1/1 mux.ratio
1/2 mux.ratio
1/3 mux.ratio
Active backplanes
COM1, 2, 3, 4
COM1
COM1, 2
COM1, 2, 3
0
1
0
1
LF2
LF1
LF0
Base
f
LCD
(Hz)
Frame Frequency f
F
(Hz)
1/1
mux.
ratio
ratio
64
32
85
43
128
64
171
85
256
128
341
171
512
256
Reserved
1/2
mux.
1/3
mux.
ratio
21
28
43
57
85
114
171
1/4
mux.
ratio
16
21
32
43
64
85
128
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
64
85
128
171
256
341
512
V
LCD
V
LCD1/3
V
SS
V
LCD2/3
R
H
R
H
R
H
LCDOFF
VR01367
I
LCD
(μA)
V
LCD
(V)
70
60
50
40
30
20
10
3
4
5
6
7
8
9
10
VR01838
621
相關(guān)PDF資料
PDF描述
ST62E18C 16-Bit Registered Transceivers With 3-State Outputs 56-SSOP -40 to 85
ST62T18C 8-BIT MCUs WITH A/D CONVERTER, AUTO-RELOAD TIMER, UART, OSG, SAFE RESET AND 20-PIN PACKAGE
ST62E40B The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each
ST62T40B The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each
ST62T10 8-BIT OTP/EPROM MCUs WITH A/D CONVERTER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST6240B-EMU2 功能描述:仿真器/模擬器 ST62 Emulator Board RoHS:否 制造商:Blackhawk 產(chǎn)品:System Trace Emulators 工具用于評估:C6000, C5000, C2000, OMAP, DAVINCI, SITARA, TMS470, TMS570, ARM 7/9, ARM Cortex A8/R4/M3 用于:XDS560v2
ST6240BQ1 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT MICROCONTROLLER ( MCU ) WITH OTP. ROM. FASTROM. EPROM. LCD DRIVER. EEPROM. A/D CONVERTER AND 80 PINS
ST6240BQ1/XXX 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
ST6240BQ6 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT MICROCONTROLLER ( MCU ) WITH OTP. ROM. FASTROM. EPROM. LCD DRIVER. EEPROM. A/D CONVERTER AND 80 PINS
ST6240BQ6/XXX 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*