EP7312-IV Cirrus Logic Inc, EP7312-IV Datasheet - Page 35
![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
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
Pin
No.
nMEDCHG/nBROM
A[17]/DRA[10]
A[16]/DRA[11]
A[15]/DRA[12]
A[14]/DRA[13]
A[13]/DRA[14]
A[19]/DRA[8]
A[18]/DRA[9]
MOSCOUT
nEXTPWR
nBATCHG
nURESET
VDDOSC
VSSOSC
MOSCIN
VDDIO
nTRST
VDDIO
BATOK
Signal
VSSIO
VSSIO
VSSIO
nPOR
D[20]
D[19]
D[18]
D[17]
D[16]
D[15]
D[14]
D[13]
A[12]
D[12]
A[11]
D[11]
A[10]
D[10]
A[9]
D[9]
A[8]
D[8]
A[7]
D[7]
Table 20. 208-Pin LQFP Numeric Pin Listing (Continued)
©
Copyright Cirrus Logic, Inc. 2005
Strength
Schmitt
Schmitt
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
(All Rights Reserved)
†
Reset
State
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Oscillator Ground
Oscillator Power
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
I/O
I/O
I/O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
High-Performance, Low-Power System on Chip
I
I
I
I
I
I
I
I
Media change interrupt input /
Battery changed sense input
External power supply sense
internal ROM boot enable
Oscillator power in, 2.5 V
JTAG async reset input
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 /
Main oscillator output
System byte address
System byte address
System byte address
System byte address
System byte address
System byte address
Power-on reset input
Main oscillator input
Oscillator Ground
SDRAM address
SDRAM address
SDRAM address
SDRAM address
SDRAM address
SDRAM address
SDRAM address
Battery OK input
User reset input
Description
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
Data I/O
Data I/O
Data I/O
input
EP7312
35