전자부품 데이터시트 검색엔진 |
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LC74761 데이터시트(PDF) 11 Page - Sanyo Semicon Device |
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LC74761 데이터시트(HTML) 11 Page - Sanyo Semicon Device |
11 / 20 page Second byte Register content DA0 to DA7 Register name State Function Note 7 — 0 Second byte identification code 6 TST 0 Normal operation Test mode should not be used. This bit 1 Test mode should always be zero. 5 CHAL 0 Sets the character intensity level to about 85 IRE (bright white). Switches the character intensity level. 1 Sets the character intensity level to about 72 IRE (white with a touch of grey). 4 BKL 0 Sets the blanking intensity level to about 3 IRE (a deep black Switches the blanking intensity level. as a frame level). 1 Sets the blanking intensity level to about 13 IRE (a dark grey as a frame level). 3 RSL1 0 1 Switches the background intensity level. 2 RSL0 0 1 1 CVoutmt 0 Normal CVout output 1 CVout pedestal level output 0 XTALsel 0 Selects XTAL1 Switches the oscillator circuit 1 Selects XTAL2 Note: When the chip is reset by the RST pin, the register states (bits) are all cleared to 0. 7 COMMAND6: Display Control Setting Command 3 First byte Register content DA0 to DA7 Register name State Function Note 7 — 1 6 — 1 The command 6 identification code: 5 — 1 sets display control parameters. 4 — 0 3 MOD3 0 Sets Fsc to 3.58 MHz. The logical or of this bit and the Fsc 1 Sets Fsc to 4.43 MHz. switching input pin (pin 14) is used. 2 MOD2 0 Sets the color mode to NTSC. The logical or of this bit and the color 1 Sets the color mode to PAL. mode switching input pin (pin 13) is used. 1 MOD1 0 Sets the number of scan lines to 525 lines. The logical or of this bit and the scan 1 Sets the number of scan lines to 625 lines. line count switching input pin (pin 12) is used. 0 MOD0 0 Sets the mode to a mode other than SECAM. The logical or of this bit and the mode 1 Sets the mode to SECAM mode. switching input pin (pin 11) is used. No. 4846-11/20 LC74761, 74761M RSL1 RSL0 Intensity level Amplitude 0 0 About 15 IRE About 60 IRE 0 1 About 30 IRE About 60 IRE 1 0 About 45 IRE About 60 IRE 1 1 About 55 IRE About 65 IRE |
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