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AT75C221 데이터시트 PDF




ATMEL Corporation에서 제조한 전자 부품 AT75C221은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 AT75C221 기능
기능 Smart Internet Appliance Processor
제조업체 ATMEL Corporation
로고 ATMEL Corporation 로고


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AT75C221 데이터시트, 핀배열, 회로
Features
ARM7TDMI® ARM® Thumb® Processor Core
– In-Circuit Emulator, 40 MHz operation
16-bit Fixed-point OakDSPCore®
– Up to 60 MHz operations
– 104K bytes of Integrated Fast RAM, Codec Interface
Ethernet Bridge
– Dual Ethernet 10/100 Mbps MAC Interface
– 16-Kbyte Frame Buffer
1 K-Byte Boot ROM, Embedding a Boot Program
– Enable Application Download from DataFlash®
External Bus Interface
– On-chip 32-bit SDRAM Controller
– 4 Chip Select Static Memory Controller
Multi-level Priority, Individually Maskable, Vectored Interrupt Controller
Three 16-bit Timer/Counters
Two UARTs with Modem Control Lines
Serial Peripheral Interface (SPI)
Two PIO Controllers, Managing up to 48 General-purpose I/O Pins
Supported by a Wide Range of Ready-to-use Application Software
– Multi-tasking Operating System, Networking
– Voice-processing Functions
Available in a 208-lead PQFP Package and 256-ball BGA Package
Power Supplies
– VDDIO 3.3V nominal
– VDDCORE and VDDOSC 1.8V nominal
0°C to + 70°C Operating Temperature Range
Smart Internet
Appliance
Processor
(SIAP)
AT75C221
Summary
Description
The AT75C221, Atmel’s latest device in the family of smart internet appliance proces-
sors (SIAP), is a high-performance processor designed for professional internet
appliance applications such as the Ethernet IP phone. The AT75C221 is built around
an ARM7TDMI microcontroller core running at 40 MHz with an OakDSPCore copro-
cessor running at 60 MHz and a dual Ethernet 10/100 Mbits/sec MAC interface.
In a typical standalone IP phone, the DSP handles the voice processing functions
(voice compression, acoustic echo cancellation, etc.) while the dual-port Ethernet
10/100 Mbits/sec MAC interface establishes the connection to the Ethernet physical
layer (PHY) that links the network and the PC. In such an application, the power of the
ARM7TDMI allows it to run a VoIP protocol stack as well as all the system control
tasks.
Atmel provides the AT75C221 with several software modules, including:
• A set of drivers for a Linux® kernel capable of driving the embedded peripherals.
• A comprehensive set of tunable DSP algorithms for voice processing, tailored to
be run by the DSP subsystem.
6033CS–INTAP–05/04




AT75C221 pdf, 반도체, 판매, 대치품
Table 1. Pinout for 208-lead PQFP Package (Continued)
Pin
Number Signal Name
Pin
Number Signal Name
145 SPCK
161 TMS
146 PA22
162 TCK
147 VDDIO
163 PA19
148 GND
164 VDDCORE
149 NRST
165 GND
150 FIQ
166 PA12
151 IRQ0
167 GND
152 TST
168 VDDIO
153 GND
169 PA11
154 VDDCORE
155 NC(1)
170 PA10
171 PA9
156 VDDIO
172 PA8
157 GND
173 PA7
158 VDDIO
174 PA6
159
160
Note:
TDO
175 VDDIO
TDI 176 NC(1)
1. NC pins should be left unconnected.
Pin
Number
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
Signal Name
PA5
PA4
PA3
PA2
PA1
PA0
GND
RXDA
TXDA
NRSTA
NCTSA
NDTRA
NDSRA
NDCDA
RXDB
TXDB
Pin
Number
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
Signal Name
GND
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PB8
PB9
VDDIO
DBW32
GND
BO256
VDDIO
Figure 1. 208-lead PQFP Package Orientation (Top View)
156 105
157 104
208
1
53
52
4 AT75C221 Summary
6033CS–INTAP–05/04

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AT75C221 전자부품, 판매, 대치품
AT75C221 Summary
Figure 2. 256-ball Package Orientation (Top View)
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
T
U
V
W
Y
6033CS–INTAP–05/04
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