MAX7456EUI+T Maxim Integrated Products, MAX7456EUI+T Datasheet - Page 32

• Manufacturer Part Number: MAX7456EUI+T
• Description: IC DISPLAY 1CH W/EEPROM 28TSSOP
• Manufacturer: Maxim Integrated Products
• Type: OSD (On-Screen Display) Video Generatorr

Specifications of MAX7456EUI+T

• 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
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Configuration: -
• Lead Free Status / Rohs Status: Details

Single-Channel Monochrome On-Screen
Display with Integrated EEPROM
Write address = 07H, read address = 87H.
Read/write access: unrestricted.
32
Display Memory Data In Register (DMDI)
BIT
7–0
______________________________________________________________________________________
DEFAULT
0000 0000
Character Address or Character Attribute byte to be stored in 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 always interpreted as a Character Address byte where bits 7–0 =
CA[7:0] (Figure 12).
Auto-Increment Mode (DMM[0] = 1)
The character address CA[7:0] = FFH is reserved for use as an escape character that terminates
the auto-increment mode. Therefore, the character located at address FFH is not available for
writing to the display memory when in auto-increment mode. In all other modes, character FFH is
available.
Bits 7–0 = Character Address bits, CA[7:0] (Figure 12).
Bit 7 = Local Background Control bit, LBC (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.)
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.
FUNCTION