EP7312-IV Cirrus Logic Inc, EP7312-IV Datasheet - Page 51
![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
DS508F1
Ball Location
G10
G11
G12
G13
G14
G15
G16
H10
H11
H12
H13
H14
H15
H16
F13
F14
F15
F16
G1
G2
G3
G4
G5
G6
G7
G8
G9
H1
H2
H3
H4
H5
H6
H7
H8
H9
J1
J2
J3
J4
J5
J6
A[13]/DRA[14]
nBATCHG
VSSCore
VSSRTC
VSSRTC
VSSRTC
VSSRTC
VDDIO
VDDIO
TXD[1]
VSSIO
VSSIO
VSSIO
VSSIO
VSSIO
Name
DD[0]
D[11]
PB[1]
PB[4]
PB[6]
D[12]
D[13]
PA[7]
PA[5]
PA[4]
PA[6]
PB[0]
PB[2]
A[10]
A[11]
A[12]
D[14]
D[15]
PA[3]
PA[1]
PA[2]
PA[0]
TDO
D[3]
A[7]
A[8]
A[9]
Strength
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
†
Table 22. 256-Ball PBGA Ball Listing (Continued)
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Reset
State
©
High
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Copyright Cirrus Logic, Inc. 2005
‡
‡
‡
‡
‡
‡
‡
‡
‡
‡
‡
‡
‡
‡
(All Rights Reserved)
Core ground
RTC ground
RTC ground
RTC ground
RTC ground
Pad ground
Pad ground
Pad ground
Pad ground
Pad ground
Pad power
Pad power
Type
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
O
O
O
O
O
O
O
I
I
I
I
Battery changed sense input
I/O ground
Data I/O
Digital I/O power, 3.3V
GPIO port B
Digital I/O power, 3.3V
JTAG data out
GPIO port B
GPIO port B
Core ground
Real time clock ground
LCD serial display data
Data I/O
Real time clock ground
System byte address
System byte address
System byte address
I/O ground
Data I/O
Data I/O
GPIO port A
GPIO port A
I/O ground
GPIO port A
GPIO port A
GPIO port B
GPIO port B
Real time clock ground
Real time clock ground
System byte address
System byte address
System byte address
System byte address / SDRAM address
I/O ground
Data I/O
Data I/O
GPIO port A
GPIO port A
I/O ground
GPIO port A
GPIO port A
UART 1 transmit data out
High-Performance, Low-Power System on Chip
Description
EP7312
51