PRELIMINARY
16Mbit CMOS SRAM
ELECTRONICS
512K x 32 Bit High-Speed CMOS Static RAM-5.0V Operating
FEATURES
Fast Access Time :
15 or 20ns
Single 5.0 鹵 0.5V Power Supply
Power Dissipation
- Standby
80mA
- Operating
540mA (Max.)
TTL Compatible Inputs and Outputs
Fully Static Operation
- No clock or Refresh required
Three State Outputs
Center Power/Ground Pin Configuration
Die Control : CS0#, CS1 #, CS2 # and
CS3 # chip select
DESCRIPTION
The 3DS16-325 is a 16,777,216 - bit high-speed Static Random Access
Memory organized as 4 banks of 262,144 words of 16 bits. Two
banks can operate silmultaneously, giving 32 bit processing.
The 3DS16-325 uses 32 common input and output lines and has
an output enable pin which operates faster than address access
time at read cycle.
Also it allows lower and upper byte access by data control
(UB#, LB#). The device is manufactured using 3D PLUS well
known MCM-V patended technology designed for high-speed circuit
applications. It is particularly well suited for use in high-density
high-speed system applications. The 3DS16-325 is packaged in
a 64-pin PQFP .
3DS16-325
PIN CONFIGURATION
PIN DESCRIPTION
3DS16-325S ( TOP VIEW )
A0-A17
WE#
Address Inputs
Write Enable
Chip Selects
Output Enable
Lower - Byte Control
Upper - Byte Control
Data Inputs / Outputs
5.0 V Power
Ground
No Connection
CS2#
CS1#
CS3#
I/O17
I/O18
I/O19
I/O29
I/O30
I/O31
I/O32
CS0#, CS1#
CS2#, CS3#
OE#
64
55
54
Ao
A1
A2
A3
A4
CSO#
I/O1
I/O2
I/O3
I/O4
Vcc
Vss
I/O5
I/O6
I/O7
I/O8
WE#
A5
A6
A7
A8
A9
1
PQFP64
22
23
33
32
A17
A16
A15
OE#
UB#
LB#
I/O16
I/O15
I/O14
I/O13
Vss
Vcc
I/O12
I/O11
I/O10
I/O9
NC
A14
A13
A12
A11
A10
AO-17
WE
#
OE
#
UB
#
LB
#
CSO
#
I/O1-16
LB#
UB#
I/O1 - I/O32
Vcc
Vss
NC
BLOCK DIAGRAM
AO-17
WE
#
OE
#
UB
#
LB
#
CS
#
I/O
AO-17
WE
#
OE
#
UB
#
LB
#
CS
#
I/O
AO-17
WE
#
OE
#
UB
#
LB
#
CS
#
I/O
AO-17
WE
#
OE
#
UB
#
LB
#
CS
#
I/O
256k x 16 BIts
I/O24
I/O23
I/O22
I/O21
I/O20
I/O28
I/O27
I/O26
I/O25
NC
256k x 16 BIts
CS2
#
256k x 16 BIts
CS1
#
I/O17-32
256k x 16 BIts
CS3
#
3D PLUS,
641 rue H茅l貓ne Boucher - ZI
F-78532 BUC Cedex FRANCE
Tel : 33 (0)1 30 83 26 50 FAX : 33 (0)1 39 56 25 89
Web : http://www. 3d-plus.com
3DFP-0012
Rev : 2
January 2000
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