MAX7456EUI+ Maxim Integrated Products, MAX7456EUI+ Datasheet - Page 37

• Manufacturer Part Number: MAX7456EUI+
• Description: IC ON-SCREEN DISPLAY 28-TSSOP
• Manufacturer: Maxim Integrated Products
• Type: OSD (On-Screen Display) Video Generatorr

Specifications of MAX7456EUI+

• Applications: Security Systems, Video Routing
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP Exposed Pad, 28-eTSSOP, 28-HTSSOP
• Current - Supply: 58mA
• Voltage - Supply: 4.75 V ~ 5.25 V
• Operating Temperature: -40°C ~ 85°C
• Interface: SPI Serial
• Display Type: OSD
• Digits Or Characters: 256 Characters
• Maximum Clock Frequency: 27 MHz
• Operating Supply Voltage: 5 V
• Maximum Power Dissipation: 2162 mW
• Maximum Operating Temperature: + 85 C
• Maximum Supply Current: 25 mA
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Configuration: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Read address = BxH.
Read/write access: read only.
Read address = CxH.
Read/write access: read only.
NA = Not applicable.
X = Don’t care.
NA = Not applicable.
X = Don’t care.
Display Memory Data Out Register (DMDO)
BIT
7–0
BIT
7, 6
5, 4
3, 2
1, 0
Character Memory Data Out Register
DEFAULT
DEFAULT
______________________________________________________________________________________
NA
NA
NA
NA
NA
Single-Channel Monochrome On-Screen
Character Address or Character Attribute byte to be read from the display memory.
8-Bit Operation Mode (DMM[6] = 1):
If DMAH[1] = 0, the content is to be interpreted as a Character Address byte, where
If DMAH[1] = 1, the content is to be interpreted as a Character Attribute byte where
16-Bit Operation Mode (DMM[6] = 0):
The content is to be interpreted as a Character Address byte, where
followed by a Character Attribute byte, where
Leftmost pixel. 00 = Black, 10 = White, 01 or 11 = Transparent (see Figure 11)
Left center pixel. 00 = Black, 10 = White, 01 or 11 = Transparent (see Figure 11)
Right center pixel. 00 = Black, 10 = White, 01 or 11 = Transparent (see Figure 11)
Rightmost pixel. 00 = Black, 10 = White, 01 or 11 = Transparent (see Figure 11)
Bits 7–0 = Character Address bits, CA[7:0] (Figure 12)
Bit 7 = Local Background Control bit, LBC (see Figure 24 and Table 4)
Bit 6 = Blink bit, BLK
Bit 5 = Invert bit, INV (see Figure 24)
Bit 4–0 = 0
The LBC, BLK, and INV bits are described in the Display Memory Mode register.
Bits 7–0 = CA[7:0] (see Figure 12)
Bit 7 = 0
Bit 6 = Local Background Control bit, LBC (see Figure 24 and Table 4)
Bit 5 = Blink bit, BLK
Bit 4 = Invert bit, INV (see Figure 24)
Bit 3–0 = 0
The LBC, BLK, and INV bits are described in the Display Memory Mode register.
Display with Integrated EEPROM
(CMDO)
To write to this register the following condition must be
met:
DMM[2] = 0, the display memory is not in the process
of being cleared.
To write to this register, the following conditions must
be met:
1) STAT[5] = 0, the character memory (NVM) is not
2) VM0[3] = 0, the OSD is disabled.
busy.
FUNCTION
FUNCTION
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