16M x 32 SDRAM 2M x 32 FLASH
PUMA 64SDFVA576
Issue 5.0 December 1999
Description
The PUMA64SDFVA576 is a ultra high density,
upgradeable, state of the art, standard memory
solution having 64 MByte SDRAM and 8 MByte
FLASH in the same package
Organised as 16M x 32 SDRAM and 2M x 32 FLASH,
the device is available in a 160 pin Plastic Quad Pack
Package (PQFP). The PQFP is designed to be
soldered directly to the PCB, eliminating all socket
reliability problems.
The SDRAM array is Intel PC100 compatible and can
sustain data rates of up to 100MHz.
The Asynchronous FLASH array operates on a
separate 32 bit wide data bus with access times of
70, 90 or 120ns.
Block Diagram
CLK3
CKE3
/S3
CLK2
CKE2
/S2
CLK1
CKE1
/S1
CLK0
CKE0
/S0
/RAS
/CAS
/WE
DQ(0~15)
DQM0
DQM1
10
Ω
15pF
10
Ω
15pF
10
Ω
15pF
10
Ω
15pF
10
Ω
4M x 16
SDRAM
4M x 16
SDRAM
4M x 16
SDRAM
4M x 16
SDRAM
DQ(16~31)
DQM2
DQM3
10
Ω
4M x 16
SDRAM
4M x 16
SDRAM
4M x 16
SDRAM
4M x 16
SDRAM
Features
Combination SDRAM and FLASH, ideal for DSP
operations with code transfer on power up.
Synchronous DRAM organised as 4M x 32.
NOR type FLASH organised as 2M x 32.
Separate data bus for SDRAM and FLASH.
Space saving 28mm square 160pin PQFP package
(0.65mm pin pitch).
LVTTL 3.3V compatible inputs and outputs.
Single 3.3V + 10% Power Supply.
On board decoupling capacitors and terminating
resistors.
SDRAM
PC 100 compatible operation.
Auto refresh and self refresh modes (4K/64ms)
Sequential and interleave burst mode operation
FLASH
Simultaneous Read/Write capability.
Common FLASH interface. (CFI)
A(0~13)
WP/ACC
RY/BY
BYTE
/RESET
/OE0
/CS0
/WE0
DQ(32~47)
A(0~20)
2M x 16
FLASH
/OE1
/CS1
/WE1
DQ(48~63)
2M x 16
FLASH
Note :
In Byte Mode D47 and
D63 are used as the LS
Address Input
Package Details
PUMA 64 - Plastic 160pin PQFP package
Max. Dimensions - 31.35 x 31.35 x 5.02
Max. over pins
All dimensions in mm.
MOSAIC [ MOSAIC ]
