EP7312-IB-90 CIRRUS [Cirrus Logic], EP7312-IB-90 Datasheet - Page 51

• Manufacturer Part Number: EP7312-IB-90
• Description: High-performance, Low-power, System-on-chip with SDRAM & Enhanced with SDRAM & Enhanced
• Manufacturer: CIRRUS [Cirrus Logic]

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