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參數(shù)資料
| 型號： | UPD784021GC-3B9 |
| 廠商： | NEC Corp. |
| 英文描述： | 16/8-BIT SINGLE-CHIP MICROCOMPUTER |
| 中文描述： | 16/8-BIT單片機 |
| 文件頁數(shù)： | 6/90頁 |
| 文件大小： | 614K |
| 代理商： | UPD784021GC-3B9 |
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6
m
PD784020, 784021
1. DIFFERENCES BETWEEN
m
PD784026 SUB-SERIES
The only difference between the
m
PD784020,
m
PD784021,
m
PD784025, and
m
PD784026 is their capacity of
internal memory, port functions, and part of their packages.
The
m
PD78P4026 is produced by replacing the masked ROM in the
m
PD784025 or
m
PD784026 with 64K-byte one-
time PROM or EPROM. Table 1-1 shows the differences between these products.
Table 1-1 Differences between the
m
PD784026 Sub-Series
Product
Item
Internal ROM
Internal RAM
P40-P47
P50-P57
P60-P63
P64, P65
Package
m
PD784020
None
512 bytes
80-pin plastic QFP
(14
￥
14 mm)
m
PD784021
2048 bytes
80-pin plastic QFP
(14
￥
14 mm)
80-pin plastic
TQFP (fine pitch)
(12
￥
12 mm)
m
PD784025
48K bytes
(masked ROM)
m
PD784026
64K bytes
(masked ROM)
m
PD78P4026
64K bytes
(one-time PROM
or EPROM)
80-pin plastic QFP
(14
￥
14 mm)
80-pin ceramic
WQFN
(14
￥
14 mm)
Functions only as an address/data bus
Functions only as an address bus
Can be switched to an output-only port
or address bus in units of 2 bits, by
using software
Functions only as the RD or WR pin
Can be switched to a general-purpose port or address/data
bus, by using software
Can be switched to a general-purpose port or address bus in
units of 2 bits, by using software
Functions as the RD or WR pin when the local bus interface
is used. Functions as a general-purpose port in other cases.
80-pin plastic QFP (14
￥
14 mm)
H
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| UPD784020GC-3B9 | 16/8-BIT SINGLE-CHIP MICROCOMPUTER |
| UPD784021GK-BE9 | 16/8-BIT SINGLE-CHIP MICROCOMPUTER |
| UPD784020 | 16/8-BIT SINGLE-CHIP MICROCOMPUTER |
| UPD784021 | 16/8-BIT SINGLE-CHIP MICROCOMPUTER |
| UPD784031GC-3B9 | 16/8-BIT SINGLE-CHIP MICROCONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UPD784031GC-8BT-A | 制造商:Renesas Electronics Corporation 功能描述:MCU 8BIT/16BIT 78K4 CISC ROMLESS 3.3V/5V 80PQFP - Trays 制造商:Renesas Electronics 功能描述:16 制造商:Renesas Electronics 功能描述:16 Cut Tape |
| UPD784031GK-9EU-A | 制造商:Renesas Electronics Corporation 功能描述:16BIT K4 ROMLESS - Bulk |
| UPD784031YGC-8BT | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD784031YGC-8BT-A | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD784031YGK-9EU | 制造商:Renesas Electronics Corporation 功能描述: |
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