Preliminary
15780Ap m 2.5
August 20, 2002
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MXED203
160-Channel OLED Row Driver
FEATURES:
•
For all Passive-Matrix Organic Light Emitting Diode (OLED) Displays •Monochome and Color
•Small Molecule and Polymer
•Common-Cathode Row Switching
• CMOS High Voltage Process: 5V-30V
Display Panel Supply Compatible •160 Output Channels, Cascadable;Configurable 144-Output Mode
•150mA Maximum Current Capability per Channel (two channels maximum active simultaneously)
•20 Ohm Maximum Row Switch “On”Resistance
•Token-Based Control; Bidirectional data transfer; Single- and Dual-Token Modes •3V to 5.5V logic supply
•Up to 100 kHz Clock Frequency
•Gold-Bumped Die @ 60 micron Output Pitch
•TCP Package Option
•Compatible with Clare Micronix 100 Series OLED Column Drivers OVERVIEW:对外开放
格局的
形成 Clare Micronix’s MXED203 is a row-multiplexed display driver for OLED panel displays. The MXED203 directly supports up to 160-row OLED panel displays, or can be cascaded for controlling additional rows. The MXED203’s low “on” switch resistance ensures uniform luminance at rapid row scan rates. The MXED203 is the second genera-tion device in Clare’s family of row drivers for OLED displays.
FUNCTIONAL DESCRIPTION
The MXED203 is capable of sinking current for up to 160 rows (LED cathodes) of an OLED display.One or two outputs may be active at a time. For displays requiring more than 150mA sink current per row, multiple MXED203’s may be placed in parallel.
Device settings, such as token direction, number of active rows, dual or single-token mode, and others,are set by dedicated input pins.
Figure 1 is a block diagram of the MXED203. Each row output has two possible sources: ground, to turn the LED on, and VOH (Voltage Output High) to turn the LED off. To begin a scan of the rows, th
e user inputs a token bit so that it is high at the rising edge of CLK, which is typically provided by the MXED102 or similar column driver or controller. In “normal mode” (single token), the token may be entered at either end of the MXED203 row shift register (SRIN or SLIN), depending on the shift direc-tion selection control “Shift Right” (SHR). The token bit is shifted one row (one channel) per clock cycle (CLK), during which time only one row maximum is active at a time. In “dual mode” (DUAL), the token bit is entered at one end and automatically in the center, and again the token bits may be selectively shifted left or right at the CLK rate; during which time only two rows maximum are active at a time. The MXED203 may be used for either 160- or 144-row display panels. When the “Select 160” (S160)
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FUNCTIONAL DESCRIPTION - continued
FIGURE 1 - MXED203 BLOCK DIAGRAM
control input is low, the MXED203 is set for 144 outputs. When S160 is low, Rows 8 through 151 must be used. (Note: A lesser number of rows may be used by resetting the MXED202 (RSTB) at any time,truncating the shift cycle.) Please refer to the table of Token Shift Options.
The MXED203 fully supports column precharge of OLED display panels. During column precharge the active row output will be high (VOH) from the time CLK occurs until PCB (typically provided by the column driver) goes high. When PCB goes high, indicating that precharge is completed, the active row output will go low, allowing the diode to turn on. All inactive row outputs will remain high.
The “off” output voltage, VOH, is connected to the output of an internal op-amp. This op-amp may be used to generate VOH, or it may be bypassed. If it is bypassed, VOH is tied directly to VMAX, as are inputs VDRV and INV. If the op-amp is to be used to generate VOH, VDRV is used as the non-inverting op-amp input, and INV is used as the inverting op-amp input. External resistors are used to set the gain, and thus VOH. Figure 4 shows the circuit options for generating VOH.
SLIN
VMAX DRV GND
INV ROW 80(Only 1 Row Output is shown)
SHR
VCC
Ropt
RSTB CLK PCB 元器件交易网b2b
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MXED203 DATA SHEET Table of Contents
FEATURES ..............................................................................................................1OVERVIEW ..............................................................................................................1FUNCTIONAL DESCRIPTION .............................................................................1-2FIGURE 1 - MXED203 BLOCK
<2TABLE 1 - TOKEN 4TABLE 2 - INPUT/OUTPUT 4-5ELECTRICAL SPECIFICATIONS ........................................................................6-9FIGURE 2 - TYPICAL ROW 8FIGURE 3 - 10-11FIGURE 4 - VOH GENERATION OPTIONS .........................................................12FIGURE 5 - TCP ASSEMBLY DRAWING .............................................................14FIGURE 6 - DIE 20ORDERING INFORMATION. (22)
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MXED203
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刘瑞龙
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INPUT/OUTPUT PAD DESCRIPTIONS
TABLE 1 - TOKEN SHIFT OPTIONS
I = INPUT, O = OUTPUT, A = ANALOG
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INPUT/OUTPUT PAD DESCRIPTIONS (continued)
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ELECTRICAL SPECIFICATION
磷酸肌酸激酶Note: Positive currents flow into the part, negative currents flow out of the part.Absolute Maximum Ratings:
Stresses beyond “Absolute Maximum Ratings” may cause damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to abso-lute maximum rating conditions for extended periods may permanently affect device reliability.
Operating Conditions: Unless otherwise stated, all parameters are specified for the following operating conditions.
Chip Supply Currents – Exclusive of Load桂林
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Note: Failure to apply both VCC & VMAX may cause damage to this device.
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