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參數資料
| 型號： | μPD78P078Y |
| 廠商： | NEC Corp. |
| 英文描述： | 8 Bit Single Chip Microcontrollers(8位單片微控制器) |
| 中文描述： | 8位單片機微控制器（8位單片微控制器） |
| 文件頁數： | 1/84頁 |
| 文件大小： | 472K |
| 代理商： | ΜPD78P078Y |
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DATA SHEET
8-BIT SINGLE-CHIP MICROCONTROLLER
MOS INTEGRATED CIRCUIT
m
PD78P078Y
The information in this document is subject to change without notice.
DESCRIPTION
The
m
PD78P078Y is a member of the
m
PD78078Y Subseries of the 78K/0 Series, in which the on-chip mask ROM
of the
m
PD78078Y is replaced with a one-time PROM or EPROM.
Because this device can be programmed by users, it is ideally suited for system evaluation, small-lot and multiple-
device production, and early development and time-to-market.
The μPD78P078Y can be also used for system evaluation of a μPD78075BY Subseries device.
Cautions 1. The specifications of the
μ
PD78075BY Subseries are not the same as those of the
μ
PD78078Y
Subseries. Therefore, if a
μ
PD78P078Y is used to evaluate a
μ
PD78075BY Subseries product, refer
to the
μ
PD78075B, 78075BY Subseries User’s Manual (U12560E).
2.
The reliability of the μPD78P078YKL-T is not guaranteed for use in mass-produced products. Please
use only experimentally or for evaluation purposes during trial manufacture.
The details of functions are described in the user’s manuals. Be sure to read the following manuals before
designing.
m
PD78078, 78078Y Subseries User’s Manual : U10641E
78K/0 Series User’s Manual: Instructions
: U12326E
FEATURES
Y
Pin-compatible with mask ROM version (except V
PP
pin)
Y
Internal PROM: 60 Kbytes
Note 1
m
PD78P078YKL-T: Reprogrammable (ideally suited for system evaluation)
m
PD78P078YGC,
m
PD78P078YGF: One-time programmable (ideally suited for small-lot production)
Y
Internal high-speed RAM: 1024 bytes
Y
Internal expansion RAM: 1024 bytes
Note 2
Y
Internal buffer RAM: 32 bytes
Y
Operable in the same supply voltage as the mask ROM version (V
DD
= 1.8 to 5.5 V)
Y
Corresponding to QTOP
TM
Microcontrollers
Notes 1.
The internal PROM capacity can be changed by setting the memory size switching register (IMS).
2.
The internal expansion RAM capacity can be changed by the internal expansion RAM size switching register
(IXS).
Remarks
1.
Refer to
1. DIFFERENCES BETWEEN THE
m
PD78P078Y AND MASK ROM VERSIONS
for the
differences between the PROM version and the mask ROM version.
QTOP microcontroller is a general term for microcontrollers which incorporate one-time PROM and
are totally supported by NEC’s programming service (from programming to marking, screening and
verification).
2.
In this document, the term PROM is used in parts common to one-time PROM versions and EPROM versions.
Document No. U10606EJ3V0DS00 (3rd edition)
Date Published July 1997 N
Printed in Japan
The mark
shows major revised points.
1996
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