7188XA/B/C & 7521/2/2A/3/4/7 Series Hardware User’ s Manual, Ver. 2.0 Sep/2002, 7Mh-001-20 -----
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1.3
Specifications
General environment
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Operating temperature: -25°C to +75°C
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Storage temperature:-40°C to +85°C
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Humidity: 0 to 90 %
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Built-in Watch Dog Timer (1.6 seconds)
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Built-in power protection & network protection circuit
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Program downloadable from PC
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Built-in I/O expansion bus interface
1.3.1 Specifications of 7188XA & 7188XAD
System
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Module name: embedded controller
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CPU: Am188™ES, 40M Hz
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SRAM: 512K bytes
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FLASH ROM: 512K bytes
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COM port: COM1, COM2, COM3, COM4
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Built-in RTC, NVRAM & EEPROM
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Supports I/O Expansion Bus
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Program download port: COM4
Real Time Clock
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Year-2000 compliance
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Seconds, minutes, hours, date of the month
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Month, year, valid
from 1980 to 2079
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NVSRAM: 31 bytes, battery backup, data valid up to 10 years
EEPROM
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2048 bytes ( 8 blocks, each block has 256 bytes)
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Data retention > 100 years
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1,000,000 erase/write cycles
D/I: 2 channels
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High:3.5V ~ 30V, Low:0 ~ 1V
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