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PMC271引脚定义图：
PMC271产品描述：
2 FPP units, 8 bit ADC, 16 IO, 1KW OTP, FPPATM controller **
(1) Operating modes: Two processing units FPPATM mode or Traditional one processing unit mode
(2) 1KW OTP program memory
(3) 64 Bytes data RAM
(4) Programmable stack pointer and adjustable stack level ?
(5) All data memories are ***ailable for use as an index pointer ?
(6) Clock sources: internal high RC oscillator, internal low RC oscillator and external crystal oscillator ?
(7) Band-gap circuit to provide 1.20V reference voltage ?
(8) One ha***are 16-bit timer ?
(9) Total 8-channel 8-bit ADC, including one channel for band-gap reference voltage input ?
(10) Built-in half VDD bias voltage generator for LCD application ?
(11) Support fast wake-up ?
(12) Eight levels of LVD reset ~ 4.1V, 3.6V, 3.1V, 2.8V, 2.5V, 2.2V, 2.0V, 1.8V ?
(13) 16 IO pins with 10mA capability and optional pull-high resistor ?
(14) Two external interrupt pins ?
(15) Every IO pin can be configured to enable wake-up function ?
(16) Operating voltage range: 2.2V ~ 5.5V
(17) PMC271 is high EFT series with -40°C ~ 85°C operating temperature range
(18) PMS271 is general purpose series with -20°C ~ 70°C operating temperature range
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