at52bc3221a ATMEL Corporation, at52bc3221a Datasheet - Page 2

• Manufacturer Part Number: at52bc3221a
• Description: 32-mbit Flash 8-mbit Psram Stack Memory
• Manufacturer: ATMEL Corporation

Pin Configuration
CBGA (Top View)
2
AT52BC3221A(T)
Pin Name
A0 - A18, A19 - A20
CE
OE
WE
RESET
RDY/BUSY
VPP
VCC
GND
I/O0 - I/O15
NC
PLB
PUB
PVCC
PGND
PCS1
ZZ
PWE
POE
G
C
D
H
A
B
E
F
NC
NC
1
NC
NC
2
PGND
A20
A16
PLB
A18
WE
Function
Common Address Input for 8M PSRAM/Flash, Flash Address Input
Flash Chip Enable
Flash Output Enable
Flash Write Enable
Flash Reset
Flash READY/BUSY Output
Flash Power Supply for Accelerated Program/Erase Operations
Flash Power
Flash Ground
Data Inputs/Outputs
No Connect
PSRAM Lower Byte
PSRAM Upper Byte
PSRAM Power
PSRAM Ground
PSRAM Chip Select 1
Low Power Modes
PSRAM Write Enable
PSRAM Output Enable
NC
NC
3
R DY/BUSY
RESET
A11
VPP
PUB
A17
A8
A5
4
A15
A10
A19
POE
A7
A4
5
I/O11
A14
A9
A6
A0
6
I/O15
I/O13
I/O12
A13
I/O9
A3
CE
7
I/O10
GND
PWE
I/O6
I/O8
A12
ZZ
A2
8
I/O14
PVC C
GND
I/O4
I/O2
I/O0
OE
A1
9
PCS1
I/O7
I/O5
VC C
I/O3
I/O1
10
NC
NC
11 12
NC
NC
NC
NC
3466A–STKD–11/04