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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1.3.2 Specifications of 7188XB & 7188XBD
System
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Module name: embedded controller
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CPU: Am188™ES, 40M Hz
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SRAM: 256K bytes
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FLASH ROM: 512K bytes
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COM port: COM1, COM2
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Built-in RTC, NVRAM, EEPROM, D/I, D/O
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User defined pins:14, pin-15 ~ pin-28
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Supports I/O Expansion Bus
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Program download port: COM1
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
Flash Memory
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512K bytes
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Erase unit is one sector(64K bytes)
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100,000 erase/write cycles
D/I: 1 channel
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High:3.5V ~ 30V, Low:0 ~ 1V
D/O: 1 channel
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100 mA, 30V max.
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