參數(shù)資料
型號: EP7312-IV-90
廠商: Cirrus Logic Inc
文件頁數(shù): 1/54頁
文件大?。?/td> 0K
描述: IC ARM720T MCU 90MHZ 208-LQFP
標準包裝: 36
系列: EP7
核心處理器: ARM7
芯體尺寸: 32-位
速度: 90MHz
連通性: 編解碼器,DAI,EBI/EMI,IrDA,鍵盤,SPI/Microwire1,UART/USART
外圍設(shè)備: LCD,LED,MaverickKey,PWM
輸入/輸出數(shù): 27
程序存儲器類型: ROMless
RAM 容量: 56K x 8
電壓 - 電源 (Vcc/Vdd): 2.3 V ~ 2.7 V
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 208-LQFP
包裝: 托盤
配用: 598-1209-ND - KIT DEVELOPMENT EP73XX ARM7
其它名稱: 598-1246
Copyright Cirrus Logic, Inc. 2011
(All Rights Reserved)
MAR ‘11
DS508F2
High-performance,
Low-power, System-on-chip
with SDRAM & Enhanced
Digital Audio Interface
EP7312 Data Sheet
OVERVIEW
BLOCK DIAGRAM
FEATURES
(cont.)
FEATURES
ARM720T Processor
— ARM7TDMI CPU Operating at Speeds of 74 and
90 MHz
— 8 kBytes of Four-way Set-associative Cache
— MMU with 64-entry TLB
— Thumb Code Support Enabled
Ultra low power
— 90 mW at 74 MHz Typical
— 108 mW at 90 MHz Typical
— <.03 mW in the Standby State
Advanced Audio Decoder/decompression Capability
— Supports bit streams with adaptive bit rates.
— Allows for support of multiple audio decompression
algorithms (MP3, WMA, AAC, Audible, etc.).
LCD
Controller
Boot
ROM
M averickKeyTM
ARM 7TDM I CPU Core
MMU
8 KB
Cache
Write
Buffer
Internal Data Bus
EPB Bus
M em ory Controller
SDRAM I/F
SRAM I/F
On-chip SRAM
48 KB
ICE-JTAG
Clocks &
Tim ers
Keypad&
Touch
Screen I/F
Interrupts,
PW M & GPIO
Bus
Bridge
(2) UARTs
w/ IrDA
Power
M anagem ent
Serial
Interface
Digital
Audio
Interface
ARM 720T
S
E
RIAL
PORTS
US
ER
INTERF
ACE
OVERVIEW
The Cirrus Logic EP7312 is designed for ultra-low-power
portable and line-powered applications such as portable
consumer entertainment devices, home and car audio juke box
systems, and general purpose industrial control applications, or
any device that features the added capability of digital audio
compression & decompression. The core-logic functionality of
the device is built around an ARM720T processor with
8 kBytes of four-way set-associative unified cache and a write
buffer. Incorporated into the ARM720T is an enhanced
memory management unit (MMU) which allows for support of
sophisticated operating systems like Microsoft Windows
CE and Linux.
MEMORY and STORAGE
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