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CG4103

SMSC
Part Number CG4103
Manufacturer SMSC
Description CHARACTER GENERATOR
Published Dec 9, 2019
Detailed Description 4100 Series CG4103 CHARACTER GENERATOR 2240-Bit Programmable (ROM) 64 Characters of 5 x 7 Bits FEATURES D Static Opera...
Datasheet PDF File CG4103 PDF File

CG4103
CG4103

Overview
4100 Series CG4103 CHARACTER GENERATOR 2240-Bit Programmable (ROM) 64 Characters of 5 x 7 Bits FEATURES D Static Operation, no clocks required.
D 2240-Bit Capacity, fully decoded· D 64 Characters of 35 Bits (5 x 7) D Column by Column Output-Column Scan D TTL Compatible D Wired "OR" Capability for memory expansion D Power Supplies: + 14v, -14v or + 12v, -12v, or +5v, -12v D Eliminates need for + 12v power supply D Single mask custom programming APPLICATIONS D Matrix Printers D Vertical Scan Alphanumeric Displays D Billboard and Stock Market Displays D Strip Printer D LED Matrix Arrays PIN CONFIGURATION 011 NC 2 02 3 NC 4 03 5 NC 6 04 7 NC 8 05 9 NC 10 06 11 NC 12 07 13 Voo 14 28 Chip Enable (Al) 27 A1 26 A2 25 A3 24 A4 23 As 22 Cs 21 C4 20 C3 19 C2 18 C1 17 Vss 16 A6 15 VGG NC = No Connection BLOCK DIAGRAM (/) LSBr----.
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, fB A1 8II: A2 ~ A3 tW; A4 CHARACTER ADDRESS DECODE ~ As ~ A6 U MSB'------J ROM MEMORY MATRIX (2240 Bits) COLUMN SELECT C1 C2 C3 C4CS 357 .
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TOP OUTPUT BUFFERS 02 ~ 03 ~ 5I- 04 05 ~« 06 0 07 BOTTOM CE(Al) CHIP ENABLE Vss Voo VGG AAA General Description The CG41 00 Series MOS Read Only Memories (ROMs) are designed specifically for dot-matrix character generation where column by column output data is desired.
Each ROM contains 2240 bits of programmable storage, organized as 64 characters, each having 5 columns of 7 bits.
The output word appears as a 5 word sequence on each of the output lines.
Sequence is controlled by the 5 Column Select lines.
By strobing the first select line, the first group of 7 bits (first column) is obtained at the output.
By sequentially strobing C, through Cs the font of the addressed character would be displayed.
The character address may remain fixed while the column select changes.
Since only 6 address bits are required in order to decode the 64 stored characters, the seventh bit (A7) may be used as a chip enable.
The chip enable (CE) in conjunction with the single ended open drain output buf...


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