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参数资料
| 型号： | SAA1064 |
| 厂商： | NXP Semiconductors N.V. |
| 元件分类： | LED驱动器 |
| 英文描述： | 4-digit LED-driver with I2C-bus interface |
| 封装： | SAA1064/N2<SOT101-1 (DIP24)|<<http://www.nxp.com/packages/SOT101-1.html<1<Always Pb-free,;SAA1064T/N2<SOT137-1 (SO24)|<<http://www.nxp.com/packages/SOT137-1.html<1< |
| 文件页数： | 6/19页 |
| 文件大小： | 122K |
| 代理商： | SAA1064 |
February 1991
6
Philips Semiconductors
Product specification
4-digit LED-driver with I
2
C-Bus interface
SAA1064
Status byte
Only one bit is present in the status byte, the POWER RESET flag. A logic 1 indicates the occurence of a power failure
since the last time it was read out. After completion of the READ action this flag will be set to logic 0.
Subaddressing
The bits SC, SB and SA form a pointer and determine to which register the data byte following the instruction byte will
be written. All other bytes will then be stored in the registers with consecutive subaddresses. This feature is called
Auto-Increment (AI) of the subaddress and enables a quick initialization by the master.
The subaddress pointer will wrap around from 7 to 0.
The subaddresses are given as follows:
Control bits
(see Fig.4)
The control bits C0 to C6 have the following meaning:
Note
1.
At a current determined by C4, C5 and C6.
Data
A segment is switched ON if the corresponding data bit is logic 1. Data bits D17 to D10 correspond with digit 1, D27 to
D20 with digit 2, D37 to D30 with digit 3 and D47 to D40 with digit 4.
The MSBs correspond with the outputs P8 and P16, the LSBs with P1 and P9. Digit numbers 1 to 4 are equal to their
subaddresses (hex) 1 to 4.
SC
SB
SA
SUB-ADDRESS
FUNCTION
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
00
01
02
03
04
05
06
07
control register
digit 1
digit 2
digit 3
digit 4
reserved, not used
reserved, not used
reserved, not used
C0 = 0
C0 = 1
C1 = 0/1
C2 = 0/1
C3 = 1
C4 = 1
C5 = 1
C6 = 1
static mode, i.e. continuous display of digits 1 and 2
dynamic mode, i.e. alternating display of digit 1 + 3 and 2 + 4
digits 1 + 3 are blanked/not blanked
digits 2 + 4 are blanked/not blanked
all segment outputs are switched-on for segment test
(1)
adds 3 mA to segment output current
adds 6 mA to segment output current
adds 12 mA to segment output current
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SAA1064/N2 | 制造商:NXP Semiconductors 功能描述:IC LED DRIVER 4DGT I2C 24DIP 制造商:NXP Semiconductors 功能描述:IC, LED DRIVER, 4DGT, I2C, 24DIP |
| SAA1064/N2,112 | 功能描述:LED显示驱动器 LED DRVR 4DGT W/I2C RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube |
| SAA1064/N2112 | 制造商:NXP Semiconductors 功能描述:SAA1064/DIP24/TUBE-BULK//N2 |
| SAA1064N | 制造商:NXP Semiconductors 功能描述: |
| SAA1064N2 | 制造商:NXP Semiconductors 功能描述:4 digit LED display driver IC,SAA1064N2 |
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