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MC141540 bảng dữ liệu(PDF) 1 Page - Motorola, Inc |
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MC141540 bảng dữ liệu(HTML) 1 Page - Motorola, Inc |
1 / 12 page MC141540 1 MOTOROLA Monitor On-Screen Display CMOS The MC141540 is a high performance HCMOS device designed to interface with a microcontroller unit to allow colored symbols or characters to be displayed on a color monitor. The on–chip PLL allows both multi–system operation and self–generation of system timing. It also minimizes the MCU’s burden through its built–in 273 bytes display/control RAM. By storing a full screen of data and control information, this device has a capability to carry out ‘screen–refresh’ without MCU supervision. Since there is no spacing between characters, special graphics–oriented characters can be generated by combining two or more character blocks. Special functions such as character bordering or shadowing, multi–level windows, double height and double width, and programmable vertical length of character can also be incorporated. Furthermore, neither massive information update nor extremely high data transmission rate are expected for normal on– screen display operation, and serial protocols are implemented in lieu of any parallel formats to achieve minimum pin count. • Fixed Resolution: 320 (CGA) Dots per Line • Fully Programmable Character Array of 10 Rows by 24 Columns • 273 Bytes Direct Mapping Display RAM Architecture • Internal PLL Generates a Wide–Ranged System Clock • For High–End Monitor Application, Maximum Horizontal Frequency is 100 kHz (32 MHz Dot Clock) • Programmable Vertical Height of Character to Meet Multi–Sync Requirement • Programmable Vertical and Horizontal Positioning for Display Center • 128 Characters and Graphic Symbols ROM • 10 x 16 Dot Matrix Character • Character–by–Character Color Selection • A Maximum of Four Selectable Colors per Row • Double Character Height and Double Character Width • Character Bordering or Shadowing • Three Fully Programmable Background Windows with Overlapping Capability • Single Positive 5 V Supply • MC141540P4 is a Replacement for XC141540P with Two Symbols Added in ROM Addresses ‘5C’ and ‘5E’ Order this document by MC141540/D MOTOROLA SEMICONDUCTOR TECHNICAL DATA PIN ASSIGNMENT MC141540 P SUFFIX PLASTIC DIP CASE 648 ORDERING INFORMATION MC141540P4 Plastic DIP 13 14 15 16 9 10 11 12 5 4 3 2 1 8 7 6 FBKG B G R VSS VDD VFLB HTONE VDD(A) RP VCO SCL(SCK) SDA(MOSI) SS HFLB VSS(A) © Motorola, Inc. 1997 REV 1 2/97 TN97031200 |
Số phần tương tự - MC141540 |
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Mô tả tương tự - MC141540 |
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