參數(shù)資料
型號： ATR0621N-7FQY
廠商： ATMEL CORP
元件分類： 無繩電話/電話
英文描述： TELECOM, CELLULAR, BASEBAND CIRCUIT, PBGA100
封裝： 9 X 9 MM, 0.80 MM PITCH, ROHS COMPLIANT, LFBGA-100
文件頁數(shù)： 11/31頁
文件大?。?/td> 477K
代理商： ATR0621N-7FQY
19
4890C–GPS–10/06
ATR0621
3.4.1
Connecting an Optional FLASH Memory
The ATR0621 offers the possibility to connect an external FLASH memory. The high perfor-
mance ARM7 32-bit RISC processor of the ATR0621 can be used to run application specific
code, that is stored in the FLASH memory. The 32-bit RISC processor of the ATR0621 accesses
the external memory via the EBI (External Bus Interface). Atmel recommends to use 1.8V
FLASH memory, e.g. the Atmel AT49SV802A. The LDO_OUT pin of the ATR0621 can supply
the external FLASH memory. Figure 3-3 shows an example of the external FLASH memory
connection.
Figure 3-3.
Example of an External FLASH Memory Connection
AT49SV802A
ATR0621
I/O0-15
A0-18
CE_N
WE_N
OE_N
NC
VSS
GND
NC
RESET_N
BYTE_N
READY/BUSY_N
EM_DA0-15
EM_A1-19
P4/NCS0
P5/NWE
(see Power Supply)
+3V
NC: Not connected
LDO_IN
LDOBAT_IN
VDD18
LDO_OUT
LDO_EN
NSHDN
GND
P6/NOE
NRESET
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相關代理商/技術參數(shù)
參數(shù)描述
ATR0621P_08 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:GPS Baseband GPS Baseband
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