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AT89C5130A-M 데이터시트(PDF) 28 Page - ATMEL Corporation

부품명 AT89C5130A-M
상세설명  8-bit Flash Microcontroller with Full Speed USB Device
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제조업체  ATMEL [ATMEL Corporation]
홈페이지  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

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AT89C5130A/31A-M
4337G–USB–11/06
Program/Code
Memory
The AT89C5130A/31A-M implement 16/ 32 Kbytes of on-chip program/code memory.
Figure 13 shows the split of internal and external program/code memory spaces
depending on the product.
The Flash memory increases EPROM and ROM functionality by in-circuit electrical era-
sure and programming. Thanks to the internal charge pump, the high voltage needed for
programming or erasing Flash cells is generated on-chip using the standard VDD volt-
age. Thus, the Flash Memory can be programmed using only one voltage and allows In-
application Software Programming commonly known as IAP. Hardware programming
mode is also available using specific programming tool.
Figure 13.
Program/Code Memory Organization
Note:
If the program executes exclusively from on-chip code memory (not from external mem-
ory), beware of executing code from the upper byte of on-chip memory (3FFFh/7FFFh)
and thereby disrupting I/O Ports 0 and 2 due to external prefetch. Fetching code constant
from this location does not affect Ports 0 and 2.
External Code Memory
Access
Memory Interface
The external memory interface comprises the external bus (Port 0 and Port 2) as well as
the bus control signals (PSEN, and ALE).
Figure 14 shows the structure of the external address bus. P0 carries address A7:0
while P2 carries address A15:8. Data D7:0 is multiplexed with A7:0 on P0. Table 33
describes the external memory interface signals.
Figure 14.
External Code Memory Interface Structure
0000h
32 Kbytes
7FFFh
Flash
32 Kbytes
External Code
FFFFh
AT89C5131A
8000h
0000h
16 Kbytes
3FFFh
Flash
48 Kbytes
External Code
FFFFh
AT89C5130A
4000h
Flash
EPROM
AT89C5130A
AT89C5131
P2
P0
AD7:0
A15:8
A7:0
A15:8
D7:0
A7:0
ALE
Latch
OE
PSEN


유사한 부품 번호 - AT89C5130A-M_06

제조업체부품명데이터시트상세설명
logo
ATMEL Corporation
AT89C5130A-M ATMEL-AT89C5130A-M_08 Datasheet
1Mb / 188P
   8-bit Flash Microcontroller with Full Speed USB Device
More results

유사한 설명 - AT89C5130A-M_06

제조업체부품명데이터시트상세설명
logo
ATMEL Corporation
AT89C5130A-M ATMEL-AT89C5130A-M_08 Datasheet
1Mb / 188P
   8-bit Flash Microcontroller with Full Speed USB Device
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