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参数资料
| 型号： | SED1241 |
| 元件分类： | 显示控制器 |
| 英文描述： | 32 X 80 DOTS DOT MAT LCD DSPL CTLR |
| 封装： | TCP |
| 文件页数： | 6/7页 |
| 文件大小： | 71K |
| 代理商： | SED1241 |
6
SED1240 Series
*1: Although a wide operating voltage range is guaranteed, it is not guaranteed in case of sudden voltage change during MPU
access.
The low supply voltage data holding characteristics apply in the sleep mode, where MPU access is disabled.
*2: Be sure for supply voltage VSS2 not to exceed the operating voltage ranges for Vout and V5 during triple boosting.
*3: D0 to D5, D6 (SCL), D7 (SI), A0, RES, CS, WR (E), P/S, IF, C86 and CK.
*4: The resistance value when a voltage of 0.1 V is applied between output pins (SEGn, SEGSn, COMn and COMSn) and each
power supply pin (V1, V2, V3 and V4). Specified in the range of supply voltage (2).
RON = 0.1 V/
I
(where
I = Current flowing when 0.1 V is applied between the power supply and the output)
*5: Applies when there is no access from the MPU, the built-in power and oscillation circuits are operating and HPM = 0 while the
following character is displayed.
*6: Applies when the built-in power circuit is turned off and the oscillation circuit turned on in the standby mode.
*7: Displays the current consumption when writing is always conducted at fcyc.
The current consumption during access is effectively proportional to the access frequency (fcyc).
*8: Specify the minimum pulse width of the RES signal. For resetting, input a pulse width of
tRW or wider.
VDD
VSS
VDD
VSS
RES
Power
supply
t RW
t RES
–2.4V
*9: The boosting circuit boosts using VSS2 as the source voltage. Be sure for the VSS2 input voltage not to exceed the maximum
operating voltage of VOUT.
*10: The oscillation circuit frequency for driving the internal circuit (
fOSC) and the boosting clock (fBST) depend on the machine type.
The relationship between oscillating frequency
fOSC, boosting clock fBST and frame frequency fFR is as follows:
fOSC = (number of digits)
× (1/duty) × fFR
fBST = (1/2)
× (1/number of digits) × fOSC
*11: When using an external clock and not using the built-in oscillation circuit for operation, input the following waveform.
Duty = (
th/tOSC)
× 100 = 20 to 30 %
fOSC = 1/ tOSC
tOSC
th
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相关代理商/技术参数 |
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| SED1278 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:CMOS DOT MATRIX LCD CONTROLLER DRIVER |
| SED1278D | 制造商:EPSON 制造商全称:EPSON 功能描述:Dot Matrix LCD Controller Driver |
| SED1278D0A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:CMOS DOT MATRIX LCD CONTROLLER DRIVER |
| SED1278D0B | 制造商:未知厂家 制造商全称:未知厂家 功能描述:CMOS DOT MATRIX LCD CONTROLLER DRIVER |
| SED1278D0C | 制造商:未知厂家 制造商全称:未知厂家 功能描述:CMOS DOT MATRIX LCD CONTROLLER DRIVER |
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