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NJU3151 датащи(PDF) 3 Page - New Japan Radio |
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NJU3151 датащи(HTML) 3 Page - New Japan Radio |
3 / 11 page NJU3151 - 3 - s TERMINAL DESCRIPTION IN OTP PROGRAMMING MODE No. SYMBOL INPUT/OUTPUT F U N C T I O N 9 RESET INPUT RESET terminal. When the low-level input-signal, the system is initialized. 1 - 4, 10 - 13, D0 - D7 INPUT/OUTPUT Data bus 14, CNT1 INPUT 15 CNT2 INPUT OTP control input terminal 7 REQ OUTPUT Request output terminal 6 CLK INPUT Clock input terminal 5 PROM INPUT OTP programming enable terminal 16 VDD - Power Source (5V) 8 VSS - Power Source (0V) Note 1) Use at VDD=5V in OTP programming mode. 2) Non connect anything to the other terminals. s Difference between NJU3151 (OTP version) and NJU3101 (MASK version) q Operating mode NJU3151 has two operating modes. One is ”Normal operating mode” and the other is “OTP programming mode”. • Normal operating mode The ”TEST” terminal is set to low level. (The terminal is recommended to connect to GND.) Operating voltage range; 2.7V ~ 5.5V. • OTP Programming mode User program is read out from or written into the OTP by the universal programmer “SUPERPRO/L” and converting adapter made by XELTEK co,.(USA). q Option information set in the initialization When the initialization is performed(RESET terminal is “L”), the operation information stored in option area is set as shown in the following timing chart . The option information is set in the term of 1 / fOSC x 256clock after RESET releasing and oscillation stability time. After information set, the program counter is set to 0000H and the NJU3151 operates in normal. [ TIMING CHART ] Option information setting 1/fOSCx256clock Oscillator Clock RESET Normal Operation Oscillation Stability Time Oscillation Start PC=0000H fOSC=4MHz about 64 µsec |
Аналогичный номер детали - NJU3151 |
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Аналогичное описание - NJU3151 |
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