參數(shù)資料
型號(hào)： MAX7456EUI+T
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 28/44頁(yè)
文件大小： 0K
描述： IC DISPLAY 1CH W/EEPROM 28TSSOP
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 2,500
類型： OSD（屏幕顯示）視頻發(fā)生器
應(yīng)用： 安全系統(tǒng)，視頻路由
安裝類型： 表面貼裝
封裝/外殼： 28-SOIC（0.173"，4.40mm 寬）裸露焊盤
供應(yīng)商設(shè)備封裝： 28-TSSOP 裸露焊盤
包裝： 帶卷 (TR)
Single-Channel Monochrome On-Screen
Display with Integrated EEPROM
Character Memory Address High Register
(CMAH)
Write address = 09H, read address = 89H.
Read/write access: unrestricted.
To write to this register, the following conditions must
be met:
1) STAT[5] = 0, the character memory (NVM) is not
busy.
2) VM0[3] = 0, the OSD is disabled.
BIT
DEFAULT
FUNCTION
7–0
0000 0000
Character Memory Address Bits
These 8 bits point to a character in the character memory (256 characters total in NVM) (Figures 10
and 12).
Character Memory Address Low Register
(CMAL)
Write address = 0AH, read address = 8AH.
Read/write access: unrestricted.
To write to this register, the following conditions must
be met:
1) STAT[5] = 0, the character memory (NVM) is not
busy.
2) VM0[3] = 0, the OSD is disabled.
BIT
DEFAULT
FUNCTION
7, 6
00
Don’t Care
5–0
00 0000
Character Memory Address Bits
These 6 bits point to one of the 64 bytes (only 54 used) that represent a 4-pixel group in the
character (Figures 10 and 11).
Character Memory Data In Register (CMDI)
Write address = 0BH, read address = 8BH.
Read/write access: unrestricted.
To write to this register, the following conditions must
be met:
1) STAT[5] = 0, the character memory (NVM) is not
busy.
2) VM0[3] = 0, the OSD is disabled.
BIT
DEFAULT
FUNCTION
7, 6
NA
Leftmost pixel. 00 = Black, 10 = White, 01 or 11 = Transparent (see Figure 11)
5, 4
NA
Left center pixel. 00 = Black, 10 = White, 01 or 11 = Transparent (see Figure 11)
3, 2
NA
Right center pixel. 00 = Black, 10 = White, 01 or 11 = Transparent (see Figure 11)
1, 0
NA
Rightmost pixel. 00 = Black, 10 = White, 01 or 11 = Transparent (see Figure 11)
NA = Not applicable.
MAX7456
34
Maxim Integrated
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