EP7312-CB-90 CIRRUS [Cirrus Logic], EP7312-CB-90 Datasheet - Page 34

• Manufacturer Part Number: EP7312-CB-90
• Description: HIGH-PERFORMANCE, LOW-POWER SYSTEM ON CHIP WITH SDRAM AND ENHANCED DIGITAL AUDIO INTERFACE
• Manufacturer: CIRRUS [Cirrus Logic]

EP7312
High-Performance, Low-Power System on Chip
34
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
Pin
No.
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
FB[1]
FB[0]
TCLK
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)
©
C opyright Cirrus Logic, Inc. 2003
Strength
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
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
DS508PP5