EP7311-CV Cirrus Logic Inc, EP7311-CV Datasheet - Page 19

• Manufacturer Part Number: EP7311-CV
• Description: Low-Power Processor 208-Pin LQFP
• Manufacturer: Cirrus Logic Inc
• Series: EP7r

Specifications of EP7311-CV

• Core Processor: ARM7
• Core Size: 32-Bit
• Speed: 74MHz
• Connectivity: Codec, EBI/EMI, IrDA, Keypad, Multimedia Codec, 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: 208-LQFP
• Processor Series: EP73xx
• Core: ARM720T
• Data Bus Width: 32 bit
• 3rd Party Development Tools: MDK-ARM, RL-ARM, ULINK2
• 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: 598-1224

SDRAM Burst Write Cycle
DS506F1
SDMWE
SDRAS
SDCAS
SDCLK
SDQM
ADDR
SDCS
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
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RAa
t
t
DAd
ADv
t
CSa
Figure 5. SDRAM Burst Write Cycle Timing Measurement
©
Copyright Cirrus Logic, Inc. 2005
t
t
(All Rights Reserved)
CSd
RAd
ADRAS
t
t
MWa
ADv
t
t
CSa
CAa
0
D1
t
t
CSd
CAd
High-Performance, Low-Power System on Chip
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DAd
t
MWd
D2
t
DAd
ADCAS
D3
t
DAd
D4
EP7311
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