EP7312-CR-90 Cirrus Logic Inc, EP7312-CR-90 Datasheet - Page 17

• 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

SDRAM Load Mode Register Cycle
DS508F1
SDRAS
SDCAS
SDMWE
SDCLK
SDCS
SDQM
ADDR
DATA
Note:
1. Timings are shown with CAS latency = 2
2. The SDCLK signal may be phase shifted relative to the rest of the SDRAM control and data signals due to uneven loading.
Designers should take care to ensure that delays between SDRAM control and data signals are approximately equal
t
t
t
t
MWa
t
CSa
RAa
CAa
ADv
Figure 3. SDRAM Load Mode Register Cycle Timing Measurement
©
Copyright Cirrus Logic, Inc. 2005
(All Rights Reserved)
t
t
t
CSd
RAd
CAd
t
MWd
t
ADx
High-Performance, Low-Power System on Chip
EP7312
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