AS7C33128PFS32B Datasheet, PDF (1/19 Pages) Alliance Semiconductor Corporation – 3.3V 128K X 32/36 pipeline burst synchronous SRAM

December 2004
AS7C33128PFS32B
AS7C33128PFS36B
®
3.3V 128K X 32/36 pipeline burst synchronous SRAM
Features
• Organization: 131,072 words × 32 or 36 bits
• Fast clock speeds to 200 MHz
• Fast clock to data access: 3.0/3.5/4.0 ns
• Fast OE access time: 3.0/3.5/4.0 ns
• Fully synchronous register-to-register operation
• Single-cycle deselect
• Asynchronous output enable control
• Available in 100-pin TQFP package
• Individual byte write and global write
• Multiple chip enables for easy expansion
• 3.3V core power supply
• 2.5V or 3.3V I/O operation with separate V_DDQ
• Linear or interleaved burst control
• Snooze mode for reduced power-standby
• Common data inputs and data outputs
Logic block diagram
CLK
ADV
ADSC
ADSP
A[16:0]
GWE
BWE
BW_d
BW_c
BW_b
BW_a
CE0
CE1
CE2
ZZ
OE
17
Power
down
LBO
CLK
CE
CLR
Q0
Burst logic
Q1
D
Q ¹⁷
15
CE
Address
register
CLK
D _DQd Q
Byte write
registers
CLK
D _DQc Q
Byte write
registers
CLK
D _DQb Q
Byte write
registers
CLK
D _DQa Q
Byte write
registers
CLK
D
Q
Enable
CE register
CLK
D _Enable Q
delay
register
CLK
128K × 32/36
17
Memory
array
36/32
36/32
4
OE
Output
registers
CLK
Input
registers
CLK
36/32
DQ [a:d]
Selection guide
Minimum cycle time
Maximum clock frequency
Maximum clock access time
Maximum operating current
Maximum standby current
Maximum CMOS standby current (DC)
–200
5
200
3.0
375
130
30
–166
6
166
3.5
350
100
30
12/10/04; v.1.7
Alliance Semiconductor
–133
7.5
133
4
325
90
30
Units
ns
MHz
ns
mA
mA
mA
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