EP7312-CR-90 Cirrus Logic Inc, EP7312-CR-90 Datasheet - Page 12

• Manufacturer Part Number: EP7312-CR-90
• Description: IC ARM720T MCU 90MHZ 204-TFBGA
• Manufacturer: Cirrus Logic Inc
• Series: EP7r

Specifications of EP7312-CR-90

• Core Processor: ARM7
• Core Size: 32-Bit
• Speed: 90MHz
• Connectivity: Codec, DAI, EBI/EMI, IrDA, Keypad, SPI/Microwire1, UART/USART
• Peripherals: LCD, LED, MaverickKey, PWM
• Number Of I /o: 27
• Program Memory Type: ROMless
• Ram Size: 56K x 8
• Voltage - Supply (vcc/vdd): 2.3 V ~ 2.7 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 204-TFBGA
• Processor Series: EP73xx
• Core: ARM720T
• Data Bus Width: 32 bit
• 3rd Party Development Tools: MDK-ARM, RL-ARM, ULINK2
• Development Tools By Supplier: EDB7312
• For Use With: 598-1209 - KIT DEVELOPMENT EP73XX ARM7
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: No
• Other names: 598-1236

EP7312
High-Performance, Low-Power System on Chip
System Design
As shown in system block diagram, simply adding desired
memory and peripherals to the highly integrated EP7312
12
Note:
EXTERNAL MEMORY-
MAPPED EXPANSION
ADDITIONAL I/O
A system can only use one of the following peripheral interfaces at any given time: SSI2,CODEC or DAI.
CRYSTAL
CRYSTAL
SDRAM
SDRAM
FLASH
FLASH
×16
×16
×16
×16
BUFFERS
BUFFERS
LATCHES
AND
SDRAM
SDRAM
FLASH
FLASH
×16
×16
×16
×16
Figure 1. A Fully-Configured EP7312-Based System
©
Copyright Cirrus Logic, Inc. 2005
(All Rights Reserved)
nCS[2]
nCS[3]
MOSCIN
RTCIN
LEDFLSH
D[0-31]
A[0-27]
nMOE
WRITE
nCS[0]
nCS[1]
CS[n]
WORD
SDRAS/
SDCAS
SDCS[0]
SDQM[0-3]
SDCS[1]
SDQM[0-3]
completes a low-power system solution. All necessary
interface logic is integrated on-chip.
DRIVE[0-1]
nEXTPWR
nBATCHG
SSIRXDA
WAKEUP
SSITXDA
SSIRXFR
RXD[[1/2]
SSITXFR
LEDDRV
ADCOUT
COL[0-7]
ADCCLK
SMPCLK
nPWRFL
nADCCS
TXD[1/2]
SSICLK
DD[0-3]
PB[0-7]
BATOK
PA[0-7]
PD[0-7]
PE[0-2]
FB[0-1]
PHDIN
ADCIN
nPOR
FRM
RUN
DSR
DCD
CTS
CL1
CL2
M
COMPARATORS
TRANSCEIVERS
ADC
CONVERTERS
PHOTODIODE
SUPPLY UNIT
CODEC/SSI2/
KEYBOARD
IR LED AND
DC-TO-DC
2× RS-232
POWER
LCD
AND
DAI
DIGITIZER
BATTERY
INPUT
DC
DS508F1