EP7312-CB Cirrus Logic Inc, EP7312-CB Datasheet - Page 19

• Manufacturer Part Number: EP7312-CB
• Description: IC ARM720T MCU 74MHZ 256-PBGA
• Manufacturer: Cirrus Logic Inc
• Series: EP7r

Specifications of EP7312-CB

• Core Size: 32-Bit
• Core Processor: ARM7
• Speed: 74MHz
• 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: 256-BGA
• Controller Family/series: (ARM7)
• No. Of Timers 8/12/16/32 Bits: 0 / 0 / 2 / 0
• Interface: SSI, UART
• Embedded Interface Type: SSI, UART
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With: 598-1209 - KIT DEVELOPMENT EP73XX ARM7
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant, Contains lead / RoHS non-compliant
• Other names: 598-1232

SDRAM Burst Write Cycle
DS508F1
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
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Figure 5. SDRAM Burst Write Cycle Timing Measurement
DAd
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CSa
ADv
©
Copyright Cirrus Logic, Inc. 2005
(All Rights Reserved)
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RAd
CSd
ADRAS
0
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MWa
CSa
CAa
ADv
D1
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CSd
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DAd
CAd
High-Performance, Low-Power System on Chip
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MWd
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D2
DAd
ADCAS
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D3
DAd
D4
EP7312
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