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CybraTech (2000) Ltd.
SOC-3000/i Scale-On-Chip
ASIC
Technical Specification
Revision B
Page 1
July, 2002
GENERAL
Features
Scale-On-Chip System
• Single-Chip Scale electronics
• Full OIML R-76 compliance
SOC-3000 - 3000 d
SOC-3000i - 6000 d
• Up to eight load cells
• 6-wire load cell connection (including Sense
inputs)
Peripherals
• Supports LCD and LED displays:
LCD: Up to 20 digits (160 segments, 4×40)
LED: Up to 24 digits
• Keyboard: Up to 64 keys
• Serial communication: RS-232/485
• I/O (set-points): Up to 40 lines
• Temperature sensor input
CPU
• Enhanced 80C51TBO
• 4 cycles/instruction
• 120KByte, field-programmable Flash program
and data memory
• 4KByte RAM
• 4KByte non-volatile Data Flash
Analog–to–Digital Converter
• Resolution-20 bits
• Sample rate-5, 10, 20 samples per second
• Programmable gain-0.5, 0.75, 1, 1.5, 2
Power
• 5/3.3V operation, 15mA
• Battery operation support
• Power failure detector
Applications
• Price computing scales
• Weighing indicators
• Counting scales
• Checkout scales
SOC-3000
8 . . . . . 888
SEN–
SIG+
SEN+
S 0-39
SIG–
LCD (20 digits)
LED (21 digits)
LED/LCD Module
BP 0-3
Buzzer
Load Cell
(Up to 8)
V
IN
V
Inp
5V +
3.3V
TxD
RxD
I/O
Set Point
RS-232
Printer
RS-485
8
KB 1-8
KBI 1-8
Up to 64
keys
+5V
FIGURE 1: SOC-3000 TYPICAL APPLICATION
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