April 2000
Advance information
AS7C3128PFD32A
AS7C3128PFD36A
®
3.3V 128K × 32/ 36 pipeline burst synchronous SRAM
• Organization: 32,768 words × 16 bits
• Fast clock speeds to 166 MHz in LVTTL/ LVCMOS
• Fast clock to data access: 3.5/ 3.8/ 4/ 5 ns
• Fast OEaccess time: 3.5/ 3.5/ 3.8/ 5 ns
• Fully synchronous operation
• Economical 100-pin TQFP package
• Byte write enables
• Clock enable for operation hold
• Multiple chip enables for easy expansion
• 3.3V core power supply
• 2.5V or 3.3V I/ O operation with separate V
• “Flow-through” mode
• Double-cycle deselect
DDQ
• Automatic power down: 30 mW typical standby power
- Single-cycle deselect also available (AS7C3128PFS36A/
AS7C3128PFS32A)
• NTD™ pipeline architecture available
(AS7C3128NTD36A/ AS7C3128NTD32A)
• Pentium® -compatible architecture and timing
• Synchronous and asynchronous output enable control
LBO
CLK
ADV
ADSC
CLK
CE
Q0
Burst logic
256K×32/ 36
Memory
CLR
ADSP
Q1
18
16
18
18
D
Address Q
A[17:0]
array
CE
CLK
register
DQPb/ NC
DQb
DQPc/ NC
DQc
1
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
2
DQb
DQc
3
36/ 32
36/ 32
GWE
BWE
V
V
4
DDQ
DDQ
D
Q
Q
Q
Q
V
V
5
DQd
SSQ
SSQ
BW
d
DQb
DQb
DQb
DQb
DQc
DQc
DQc
DQc
6
Byte Write
registers
7
CLK
8
9
D
DQc
V
V
10
11
BW
c
SSQ
SSQ
DDQ
Byte Write
V
V
DDQ
registers
DQb
DQb
DQc 12
DQc 13
FT 14
CLK
TQFP 14x20mm
D
V
SS
DQb
BW
b
V
NC
15
DD
Byte Write
V
NC 16
DD
registers
ZZ
V
17
18
19
20
21
22
23
24
25
26
27
28
29
CLK
SS
DQa
DQa
DQd
DQd
D
DQa
BW
a
4
V
V
DDQ
DDQ
Byte Write
V
V
registers
SSQ
SSQ
CLK
DQa
DQa
DQa
DQa
DQd
DQd
DQd
DQd
CE0
CE1
D
Q
Q
OE
Output
registers
Enable
register
CE2
Input
registers
CLK
V
V
SSQ
SSQ
CE
CLK
V
V
DDQ
DDQ
CLK
LE
DQa
DQd
DQa
DQd
D
Enable
DQPa/ NC
DQPd/ NC 30
Power
down
ZZ
delay
register
CLK
36/ 32
OE
DATA [35:0]
[31:0]
FT
Note: Pins 1,30,51,80 are NC for ×32
AS7C3128PFD36A AS7C3128PFD36A AS7C3128PFD36A AS7C3128PFD36A Units
Minimum cycle time
Maximum pipelined clock frequency
6
6.7
150
3.8
400
60
7.5
133.3
4
10
100
5
ns
166.7
MHz
ns
Maximum pipelined clock access time 3.5
Maximum operating current
450
60
5
350
60
300
60
5
mA
mA
mA
Maximum standby current
Maximum CMOS standby current (DC)
5
5
NTD™ is a trademark of Alliance Semiconductor Corporation.
Pentium® is a registered trademark of Intel Corporation.
DID 11-20011-A. 6/ 8/ 00
ALLIANCE SEMICONDUCTOR
1