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Single Cycle 8051 CPU core, maximum operating clock up to 20 MHz |
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Single + 5V (CS8957H) or +3.3V (CS8957) power supply |
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Embedded 64K-byte Flash ROM |
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1024-byte RAM
-256-byte Internal RAM
-768-byte Auxiliary RAM
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Expandable 64K-byte external data memory |
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9 channels general PWM outputs
-7 channels of 8 bit supporting Programmable PWM output frequency
-2 channels of 14 bit supporting Programmable PWM output frequency (36Hz ~ 78KHz when operating clock = 20 MHz)
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Maximum 36 I/O pins |
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Three 16-bit Counters/Timers |
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One programmable buffered clock output ports to drive peripheral devices |
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I2C commend interfaces with built-in I²C input pins |
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Built-in two Slave I²C ports |
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Maximum 10-channel 12-bit A/D converters with Flag indication
-Conversion time: 10 ms
-Input voltage level: 0 ~ +VDD
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Hardware ISP (In-System-Programming), no Boot Code required |
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Full-duplex UART |
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6 External interrupt pins |
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Programmable Watch Dog Timer |
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Dual Data Pointer (DPTR) |
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Flash-ROM program code protection |
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44-pin PLCC and 44-pin PQFP packages |
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Operating temperature:
-CS8957xx: 0oC~70oC
-CS8957xx-I: -40oC~85oC
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Green product, RoHS compliance |
