EP7312-CR Cirrus Logic Inc, EP7312-CR Datasheet - Page 46

• Manufacturer Part Number: EP7312-CR
• Description: IC ARM720T MCU 74MHZ 204-TFBGA
• Manufacturer: Cirrus Logic Inc
• Series: EP7r

Specifications of EP7312-CR

• 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: 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: 598-1235

EP7312
High-Performance, Low-Power System on Chip
256-Ball PBGA Package Characteristics
46
Y11
Y12
Y13
Y14
Y15
Y16
Y17
Y18
Y19
Y20
Ball Location
* “With p/u” means with internal pull-up of 100 KOhms on the pin.
†
‡
Input. Port A,B,D,E GPIOs default to input at nPOR and URESET conditions.
Strength 2 = 12 ma
Strength 1 = 4 ma
Note:
1) For pin locations see
2) Dimensions are in millimeters (inches), and controlling dimension is millimeter
3) Before beginning any new EP7312 design, contact Cirrus Logic for the latest package information.
SMPCLK
FB[1]
COL[6]
COL[3]
COL[1]
D[31]
D[28]
D[27]
A[25]/DRA[2]
VDDIO
Name
Table
Strength
1
1
1
1
1
1
1
2
22.
Table 21. 204-Ball TFBGA Ball Listing (Continued)
†
©
Figure 18. 256-Ball PBGA Package
Copyright Cirrus Logic, Inc. 2005
Reset
State
High
High
High
Low
Low
Low
Low
Low
(All Rights Reserved)
Pad power
Type
I/O
I/O
I/O
O
O
O
O
O
I
SSI1 ADC sample clock
PWM feedback input
Keyboard scanner column drive
Keyboard scanner column drive
Keyboard scanner column drive
Data I/O
Data I/O
Data I/O
System byte address / SDRAM address
Digital I/O power, 3.3V
Description
DS508F1