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參數(shù)資料
| 型號： | UPD178P018 |
| 廠商： | NEC Corp. |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| 中文描述： | 8位微控制器與2/4/8K字節(jié)在系統(tǒng)可編程閃存 |
| 文件頁數(shù)： | 9/52頁 |
| 文件大?。?/td> | 247K |
| 代理商： | UPD178P018 |
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9
Data Sheet U12920EJ1V0DS00
μ
PD178F098
1. DIFFERENCES BETWEEN
μ
PD178F098 AND MASK ROM MODELS
The
μ
PD178F098 is provided with a flash memory to/from which data can be written/erased with the device
mounted on a printed circuit board. The differences between the flash memory model (
μ
PD178F098) and mask ROM
models (
μ
PD178076, 178078, 178096, and 178098) are shown in Table 1-1.
Table 1-1. Differences between
μ
PD178F098 and Mask ROM Models
Item
μ
PD178F098
μ
PD178076, 178078
μ
PD178096, 178098
Internal memory
ROM structure
Flash memory
Mask ROM
ROM capacity
60K bytes
μ
PD178076: 48K bytes
μ
PD178078: 60K bytes
μ
PD178076: 1024 bytes
μ
PD178078: 2048 bytes
μ
PD178076: CCH
μ
PD178078: CFH
μ
PD178076: 0AH
μ
PD178078: 08H
μ
PD178096: 48K bytes
μ
PD178098: 60K bytes
μ
PD178096: 1024 bytes
μ
PD178098: 2048 bytes
μ
PD178096: CCH
μ
PD178098: CFH
μ
PD178096: 0AH
μ
PD178098: 08H
External
extension RAM
2048 bytes
Internal ROM capacity selected by
memory size select register (IMS)
Equivalent to mask ROM
model
Internal extension RAM capacity
selected by internal extension RAM
size select register (IXS)
Equivalent to mask ROM
model
Serial interface
4 channels
3-wire/SBI/2-wire/I
2
C bus mode selectable
3-wire (with automatic transmit/receive function)
3-wire
UART
3 channels
3-wire/SBI/2-wire/I
2
C bus
mode selectable
3-wire (with automatic
transmit/receive function)
3-wire
IEBus controller
Provided
Not provided
Provided
Interrupt source
24
22
21
IC pin
Not provided
Provided
V
PP
pin
Provided
Not provided
Electrical specifications and
recommended soldering conditions
See the relevant data sheet
Caution The noise resistance and noise radiation differ between flash memory versions and mask ROM
versions. When considering the replacement of flash memory versions with mask ROM versions
in the process from trial manufacturing to mass production, adequate evaluation should be carried
out using CS products (not ES products) of mask ROM versions.
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