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UPD78F4216AYGC-8EU Datasheet(PDF) 7 Page - NEC |
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UPD78F4216AYGC-8EU Datasheet(HTML) 7 Page - NEC |
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7 / 60 page  Data Sheet U14125EJ1V0DS00 7 µµµµPD78F4216A, 78F4218A, 78F4216AY, 78F4218AY 1. DIFFERENCES AMONG MODELS IN µµµµPD784216A/784216AY, 784218A/784218AY SUBSERIES The only difference among the µPD784214A, 784215A, 784216A, 784217A, and 784218A lies in the internal memory capacity. The µPD784214AY, 784215AY, 784216AY, 784217AY, and 784218AY are models with the addition of an I2C bus control function. The µPD78F4216A, 78F4216AY, 78F4218A, and 78F4218AY are provided with a 128 KB/256 KB flash memory instead of the mask ROM of the above models. These differences are summarized in Table 1-1. Table 1-1. Differences Among Models in µµµµPD784216A/784216AY, 784218A/784218AY Subseries Part Number Item µPD784214A, µPD784214AY µPD784215A, µPD784215AY µPD784216A, µPD784216AY µPD784217A, µPD784217AY µPD784218A, µPD784218AY µPD78F4216A, µPD78F4216AY µPD78F4218A, µPD78F4218AY Internal ROM 96 KB (Mask ROM) 128 KB (Mask ROM) 192 KB (Mask ROM) 256 KB (Mask ROM) 128 KB (Flash memory) 256 KB (Flash memory) Internal RAM 3,584 bytes 5,120 bytes 8,192 bytes 12,800 bytes 8,192 bytes 12,800 bytes Internal memory size switching register (IMS) Not provided Provided Note ROM correction Not provided Provided Not provided Provided External access status function Not provided Provided Not provided Provided Supply voltage VDD = 1.8 to 5.5 V VDD = 1.9 to 5.5 V Electrical specifications Recommended soldering conditions Refer to the data sheet for each device. EXA pin Not provided Provided Not provided Provided TEST pin Provided Not provided VPP pin Not provided Provided Note The internal flash memory capacity and internal RAM capacity can be changed using the internal memory size switching register (IMS). Caution There are differences in noise immunity and noise radiation between the flash memory and mask ROM versions. When pre-producing an application set with the flash memory version and then mass-producing it with the mask ROM version, be sure to conduct sufficient evaluations on the commercial samples (not engineering samples) of the mask ROM version. |
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