參數(shù)資料
型號: STLED316SMTR
廠商: STMICROELECTRONICS
元件分類: 顯示控制器
英文描述: 4 X 17 SEGMENTS SEGMENT LED DRVR AND DSPL CTLR, PDSO24
封裝: ROHS COMPLIANT, SOP-24
文件頁數(shù): 18/33頁
文件大小: 438K
代理商: STLED316SMTR
STLED316S
Key-scanning and display timing
25/33
9
Key-scanning and display timing
During the first cycle, the 16 channels are used for the keyscan. The keyscan duration is
made up of 64 s. The second cycle is used for the display of the LED (discrete). The
maximum time is 512s and the 3rd-8th cycles are used for the 7-segment display. The
number of cycles will increase or decrease depending upon the user configuration.
By default, the configuration is made up of 4 cycles. If any data is written to the discrete
LED, only then the 2nd cycle is valid. Otherwise the 7-segment moves from 2nd-7th cycle.
This is a continuous operation. During the normal operation, the user cannot control or stop
the timing generation.
One cycle of key scanning consists of one frame, and data of 8 x 2 matrices are stored in
the RAM.
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