EP7312-IV Cirrus Logic Inc, EP7312-IV Datasheet - Page 18
![IC ARM720T MCU 74MHZ 208-LQFP](/photos/12/44/124402/ep7312-iv_sml.jpg)
EP7312-IV
Manufacturer Part Number
EP7312-IV
Description
IC ARM720T MCU 74MHZ 208-LQFP
Manufacturer
Cirrus Logic Inc
Series
EP7r
Datasheet
1.EP7312-CVZ.pdf
(64 pages)
Specifications of EP7312-IV
Core Processor
ARM7
Core Size
32-Bit
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
-40°C ~ 85°C
Package / Case
208-LQFP
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
-
Other names
598-1245
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
EP7312-IV-90
Manufacturer:
Cirrus Logic Inc
Quantity:
10 000
EP7312
High-Performance, Low-Power System on Chip
SDRAM Burst Read Cycle
18
SDMWE
SDCLK
SDRAS
SDCAS
SDQM
ADDR
SDCS
DATA
[0:3]
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
CSd
RAd
t
t
CSa
RAa
ADRAS
t
ADv
Figure 4. SDRAM Burst Read Cycle Timing Measurement
©
Copyright Cirrus Logic, Inc. 2005
t
t
CSd
CAd
t
t
CSa
CAa
(All Rights Reserved)
t
ADv
ADCAS
t
DAs
D1
t
DAh
t
DAs
D2
t
DAh
t
DAs
D3
t
DAh
t
DAs
D4
t
DAh
DS508F1
t
RAnv