参数资料
型号: EP7312-IBZ
厂商: Cirrus Logic Inc
文件页数: 1/54页
文件大小: 0K
描述: IC ARM720T MCU 74MHZ 256-PBGA
标准包装: 90
系列: EP7
核心处理器: ARM7
芯体尺寸: 32-位
速度: 74MHz
连通性: 编解码器,DAI,EBI/EMI,IrDA,键盘,SPI/Microwire1,UART/USART
外围设备: LCD,LED,MaverickKey,PWM
输入/输出数: 27
程序存储器类型: ROMless
RAM 容量: 56K x 8
电压 - 电源 (Vcc/Vdd): 2.3 V ~ 2.7 V
振荡器型: 外部
工作温度: -40°C ~ 85°C
封装/外壳: 256-BGA
包装: 托盘
配用: 598-1209-ND - KIT DEVELOPMENT EP73XX ARM7
其它名称: 598-1242
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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