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參數(shù)資料
| 型號(hào)： | μPD70P3000 |
| 廠商： | NEC Corp. |
| 英文描述： | 16/32 Bit Single Chip Microcontrollers(16/32位單片微控制器) |
| 中文描述： | 16/32位單片機(jī)微控制器（16/32位單片微控制器） |
| 文件頁(yè)數(shù)： | 7/72頁(yè) |
| 文件大?。?/td> | 334K |
| 代理商： | ΜPD70P3000 |
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μ
PD70P3000
7
1. DIFFERENCES BETWEEN
μ
PD70P3000 and
μ
PD703000
The
μ
PD70P3000 is a PROM version of the
μ
PD703000. Therefore, these two models are identical except
for differences because of the ROM specifications (for example, specifications concerning writing and verifying).
Table 1-1 shows the differences between the two.
Note that this document mainly describes the PROM specifications of the
μ
PD70P3000. For the other
functions, refer to the documents on the
μ
PD703000.
Table 1-1. Differences between
μ
PD70P3000 and
μ
PD703000
Item
Internal program memory
(electrical writing)
Part Number
μ
PD70P3000
μ
PD70P3000
One-time PROM
(can be written only once)
Mask ROM
PROM programming pin
Provided
None
Setting of MODE0 and
In normal operation mode
In normal operation mode
MODE1 pins
MODE0, 1 = LH
MODE0, 1 = LH
In PROM programming mode
In ROM-less mode
MODE0, 1 = HH
MODE0, 1 = LL
Electrical specifications
Current consumption differs
Others
Noise immunity and noise radiation differ because circuit scale and mask layout differ.
Cautions 1. The PROM and mask ROM models differ from each other in terms of noise immunity and noise
radiation. When replacing the PROM model with the mask ROM model in the course of
experimental production to mass production, perform thorough evaluation with the CS model
(not ES model) of the mask ROM model.
2. Directly connect the MODE0 and MODE1 pins to V
DD
or V
SS
.
3. When replacing the PROM model with the mask ROM model, write the same code to the empty
area of the on-chip ROM.
Remark
L : low level
H : high level
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