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UPD782 fiches techniques PDF

NEC - DOT MATRIX PRINTER CONTROLLER

Numéro de référence UPD782
Description DOT MATRIX PRINTER CONTROLLER
Fabricant NEC 
Logo NEC 





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UPD782 fiche technique
NEe Microcomputers, Inc.
NEe
J-LPD782
rpm~[~~~~ill~W
DOT MATRIX PRINTER CONTROLLER
DESCRIPTION
F EATU RES
PIN CONFIGURATION
The I'PD782 is an LSI Dot Matrix Printer Controller chip which contains all the circuitry and con-
trol functions for interfacing an 8-bit processor to the Epson Model 210,220 and 240 Dot Matrix
Printers. These printers are capable of printing up to 3,1 col umns per row with 7 x 7 dot matri x.
The I'PD782 is ideally suited for low-cost Electronic Cash Registers (ECR) and Point of Sale (POS)
systems because it frees the processor from direct control of the printer and simplifies 110 software.
There are nine separate instructions, which the IJPD782 will execute. Each of these instructions
requires a single a-bit byte from the processor to be executed. Upon receipt of the instruction, the
",PD782 assumes the control of the printer, increments the position of the print head, activates the
print solenoids, performs line feeds in either receipt or journal mode (or both), and performs all
these operations for an entire print line.
The p.PD782 contains its own on-board character generator of 96 symbols. It contains a 31 column
printer buffer and is capable of supplying status information to the host processor on both the
controller itself as well as the printer. After the character buffer is loaded from the host processor
the entire row is printed out with a single print command.
Compatible with most Microprocessors !ncluding 8080A, 8085A, Z-80™ and others
• Capable of Interfacing to Epson Model 210, 210S, 220 and 240 Printers
• Print Technique - Serial Dot Matrix
• Print Font - 7 x 7 Dot Matrix
• Column Print Capacity
Model 210 - 31 Characters with 1 Dot Spacing; 26 Characters with 2 Dot Spacing
Model 210S - 28 Characters with 1 Dot Spacing; 23 Characters with 2 Dot Spacing
Model 220 - 14 + 14 Characters in Receipt/Journal Mode; 31 Characters in Normal Mode
Model 240 - 31 Characters
• 96 Character Set (Alphanumerics Plus Symbols)
• Print Speed - Approximately 3 Lines/Sec.
• Paper Feed Receipt and Journal; Fast Feed
• Paper Release and Ink Ribbon Change-Over Outputs "
• Motor Error and Write Request Interrupt
'.<
• On-Board 6 MHz Oscillator (External Crystal Requir;ed)
• Operates from a Single +5V Power Supply (NMOS'Technology)
• Available in 40 Pin Plastic Package
RIN
Xl
X2
RESET
VCC3
CS
VSS2
RD
C/O
WR
OPENl
DO
Dl
D2
D3
D4
D5
D6
D7
VSSl
2
3
4
5
6
7
8
9
/lPD782
VCCl
TIM
MTD
PR7
PR6
PR5
VDR/TOF
VDJ/TOB
NE
31 PFR
PFJ
RBN/PRS
STM
INT
VCC2
OPEN2
PR4
PR3
PR2
21 PRl
PIN NAMES
RIN
Xl X2
RESET
VCCl-3
VSSl-2
CS
RD
C/D
WR
OPENl_2
DO-D7
PR1-PR7
INT
STM
RBN/PRS
PFJ
PFR
NE
VDJ/BOF
VDR/BO"f
MTD
TIM
Reset In
Crystal Inputs
Reset
DC Power
Signal Ground
Chip Select
Read
Command/Data
Write
No Connection
Data Bus
Print Solenoids
Interrupt
Stamp
Ribbon/Paper Release
Paper Feed Journal
Paper Feed Receipt
Low Paper Detector
I
Validation J/BOF Sensor
Validation R/BOT Sensor
Motor Drive
Timing Signal
II
TM: Z-80 is a registered trademark of Zilog, Inc.
455

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