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UPD780021AY

Description
8-BIT SINGLE-CHIP MICROCONTROLLERS
File Size410KB,90 Pages
ManufacturerNEC ( Renesas )
Websitehttps://www2.renesas.cn/zh-cn/
Download Datasheet View All

UPD780021AY Overview

8-BIT SINGLE-CHIP MICROCONTROLLERS

DATA SHEET
MOS INTEGRATED CIRCUIT
µ
PD78F0034B, 78F0034BY, 78F0034B(A), 78F0034BY(A)
8-BIT SINGLE-CHIP MICROCONTROLLERS
DESCRIPTION
The
µ
PD78F0034B is a member of the
µ
PD780034A Subseries in the 78K/0 Series, and is equivalent to the
µ
PD780034A (expanded-specification product) but with flash memory in place of internal ROM.
The
µ
PD78F0034BY is a member of the
µ
PD780034AY Subseries, featuring flash memory in place of the internal
ROM of the
µ
PD780034AY.
The
µ
PD78F0034B(A) and 78F0034BY(A) are products to which a quality assurance program more stringent than
that used for the
µ
PD78F0034B and 78F0034BY (standard models) is applied (NEC Electronics classifies these
products as "special" quality grade models).
The
µ
PD78F0034B, 78F0034BY, 78F0034B(A), and 78F0034BY(A) incorporate flash memory, which can be
programmed and erased while mounted on the board.
Detailed function descriptions are provided in the following user’s manuals. Be sure to read them before
designing.
µ
PD780024A, 780034A, 780024AY, 780034AY Subseries User’s Manual: U14046E
78K/0 Series Instruction User’s Manual: U12326E
FEATURES
• Pin-compatible with mask ROM versions (except V
PP
pin)
• Flash memory:
• Supply voltage:
Note
32 KB
Note
V
DD
= 1.8 to 5.5 V
• Internal high-speed RAM: 1,024 bytes
Note
The flash memory and internal high-speed RAM capacities can be changed with the memory size switching
register (IMS).
Remark
For the differences between the flash memory and the mask ROM versions, refer to
4. DIFFERENCES
BETWEEN
µ
PD78F0034B, 78F0034BY, AND MASK ROM VERSIONS.
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all products and/or types are available in every country. Please check with an NEC Electronics
sales representative for availability and additional information.
Document No. U16369EJ1V0DS00 (1st edition)
Date Published January 2003 N CP(K)
Printed in Japan
©
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