参数资料
型号: MC14489BPE
厂商: Freescale Semiconductor
文件页数: 16/22页
文件大小: 0K
描述: IC LED DRIVER 5-CH CMOS 20-DIP
标准包装: 18
显示器类型: LED
配置: 7 段显示
接口: 串行
电流 - 电源: 5.5mA
电源电压: 4.5 V ~ 5.5 V
工作温度: -40°C ~ 130°C
安装类型: 通孔
封装/外壳: 20-DIP(0.300",7.62mm)
供应商设备封装: 20-PDIP
包装: 管件
产品目录页面: 809 (CN2011-ZH PDF)
Table 2. Register Access for Two or More Cascaded Devices
Configuration Register Access
Number of Leading
Display Register Access
Number of Leading
Criteria*
If 3N is a Multiple of 4
If 3N – 1 is a Multiple of 4
If 3N – 2 is a Multiple of 4
If 3N – 3 is a Multiple of 4
Total Number of Bytes
3N
3N – 1
3N – 2
3N – 2
“Don’t Care” Bytes
2
1
0
0
Total Number of Bytes
3N + 2
3N + 1
3N
3N
“Don’t Care” Bytes
2
1
0
0
* N = number of devices that are cascaded. For example, to drive 10 digits, 2 devices are cascaded; therefore, N = 2. To drive 35 digits, seven
devices are cascaded; therefore N = 7.
LED DISPLAY
+5V
8
5
+5V
VDD
CMOS
MCU/MPU
MC14489B
Rx
R1
R2
VSS
NOTE: R1 limits the maximum current to avoid damaging the display and/or the MC14489B
due to overheating. See the Thermal Considerations section. An 1/8 watt resistor
may be used for R1. R2 is a 1 k ? or 5 k ? potentiometer ( ≥ 1/8 watt). R2 may be a
light–sensitive resistor.
Figure 15. Common–Cathode LED Display with Dial–Adjusted Brightness
MC14489B
16
MOTOROLA
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MC14489P 制造商:Motorola Inc 功能描述:
MC14490DW 功能描述:算数逻辑单元 - ALU LOG CMOS 3-18V HEX BOUNCE ELIMINATOR RoHS:否 制造商:ON Semiconductor 高电平输出电流: 低电平输出电流: 传播延迟时间: 电源电压-最大:18 V 电源电压-最小:3 V 封装 / 箱体:SOIC-16 Wide 最大工作温度:+ 125 C 封装:Reel
MC14490DWG 功能描述:算数逻辑单元 - ALU LOG CMOS 3-18V HEX BOUNCE ELIMINATOR RoHS:否 制造商:ON Semiconductor 高电平输出电流: 低电平输出电流: 传播延迟时间: 电源电压-最大:18 V 电源电压-最小:3 V 封装 / 箱体:SOIC-16 Wide 最大工作温度:+ 125 C 封装:Reel
MC14490DWG 制造商:ON Semiconductor 功能描述:Gate / Inverter Logic IC Package/Case:16
MC14490DWR2 功能描述:算数逻辑单元 - ALU LOG CMOS 3-18V HEX BOUNCE ELIMINATOR RoHS:否 制造商:ON Semiconductor 高电平输出电流: 低电平输出电流: 传播延迟时间: 电源电压-最大:18 V 电源电压-最小:3 V 封装 / 箱体:SOIC-16 Wide 最大工作温度:+ 125 C 封装:Reel