EP7312-IV-90 Cirrus Logic Inc, EP7312-IV-90 Datasheet - Page 34
![IC ARM720T MCU 90MHZ 208-LQFP](/photos/12/44/124403/ep7312-iv-90_sml.jpg)
EP7312-IV-90
Manufacturer Part Number
EP7312-IV-90
Description
IC ARM720T MCU 90MHZ 208-LQFP
Manufacturer
Cirrus Logic Inc
Series
EP7r
Datasheet
1.EP7312-CVZ.pdf
(64 pages)
Specifications of EP7312-IV-90
Core Processor
ARM7
Core Size
32-Bit
Speed
90MHz
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
598-1246
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
34
Pin
No.
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
A[27]/DRA[0]
A[26]/DRA[1]
A[25]/DRA[2]
A[24]/DRA[3]
A[23]/DRA[4]
A[22]/DRA[5]
A[21]/DRA[6]
A[20]/DRA[7]
HALFWORD
SMPCLK
COL[7]
COL[6]
COL[5]
COL[4]
COL[3]
COL[2]
VDDIO
COL[1]
COL[0]
VDDIO
Signal
VSSIO
VSSIO
VSSIO
VSSIO
TCLK
FB[1]
FB[0]
D[31]
D[30]
D[29]
D[28]
D[27]
D[26]
D[25]
D[24]
D[23]
D[22]
D[21]
BUZ
Table 20. 208-Pin LQFP Numeric Pin Listing (Continued)
©
Copyright Cirrus Logic, Inc. 2005
Strength
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
2
1
2
1
1
1
1
1
1
1
1
1
1
1
1
(All Rights Reserved)
†
Reset
State
High
High
High
High
High
High
High
High
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
—
—
Pad Gnd
Pad Gnd
Pad Gnd
Pad Gnd
Pad Pwr
Pad Pwr
Type
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
O
O
O
O
O
O
O
O
O
I
I
I
Halfword access select output
Keyboard scanner column
Keyboard scanner column
Keyboard scanner column
Keyboard scanner column
Keyboard scanner column
Keyboard scanner column
Keyboard scanner column
Keyboard scanner column
SSI1 ADC sample clock
Digital I/O power, 3.3 V
Digital I/O power, 3.3 V
System byte address /
System byte address /
System byte address /
System byte address /
System byte address /
System byte address /
System byte address /
System byte address /
PWM feedback input
PWM feedback input
Buzzer drive output
SDRAM address
SDRAM address
SDRAM address
SDRAM address
SDRAM address
SDRAM address
SDRAM address
SDRAM address
Description
JTAG clock
I/O ground
I/O ground
I/O ground
I/O ground
Data I/O
Data I/O
Data I/O
Data I/O
Data I/O
Data I/O
Data I/O
Data I/O
Data I/O
Data I/O
Data I/O
drive
drive
drive
drive
drive
drive
drive
drive
DS508F1