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參數(shù)資料
| 型號： | μPD78P058FY |
| 廠商： | NEC Corp. |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8 Bit Single Chip Microcontrollers |
| 中文描述： | 8位單片機(jī)微控制器 |
| 文件頁數(shù)： | 11/74頁 |
| 文件大?。?/td> | 520K |
| 代理商： | ΜPD78P058FY |
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11
μ
PD78P058FY
1.
DIFFERENCES BETWEEN
μ
PD78P058FY AND MASK ROM VERSIONS
The
μ
PD78P058FY is a single-chip microcontroller with an on-chip one-time PROM.
Setting the memory size switching register (IMS) and internal expansion RAM size switching register (IXS) enables
identical functions to mask ROM versions (
μ
PD78056FY and 78058FY) except the functions of PROM specifications
and of mask options for P60 to P63.
Differences between the
μ
PD78P058FY and mask ROM versions are shown in Table 1-1.
Table 1-1. Differences between
μ
PD78P058FY and Mask ROM Versions
Item
μ
PD78P058FY
Mask ROM Versions
Internal ROM structure
One-time PROM
Mask ROM
Internal ROM capacity
60 Kbytes
μ
PD78056FY : 48 Kbytes
μ
PD78058FY : 60 Kbytes
Internal expansion RAM capacity
1024 bytes
μ
PD78056FY : None
μ
PD78058FY : 1024 bytes
Change of internal ROM capacity by
memory size switching register (IMS)
Can be changed
Note
Cannot be changed
Change of internal expansion RAM
capacity by internal expansion
RAM size switching register (IXS)
Can be changed
Note
Cannot be changed
IC pin
None
Provided
V
PP
pin
Provided
None
Pull-up resistor on-chip mask
option of P60 to P63 pins
None
Provided
Electrical specifications,
recommended soldering conditions
See each Data Sheet.
Note
The RESET input sets the internal PROM capacity and internal expansion RAM capacity to 60 Kbytes and
1024 bytes, respectively.
Caution
The PROM version and mask ROM version differ in noise tolerance and noise emission. When
replacing a PROM version with a mask ROM version when switching from experimental production
to mass production, make a thorough evaluation with a CS version (not ES version) of the mask
ROM version.
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