AS5SP128K36 Datasheet, PDF (1/14 Pages) Micross Components – Byte Write support

Plastic Encapsulated Microcircuit
4.5Mb, 128K x 36, Synchronous SRAM
Pipeline Burst, Single Cycle Deselect
FEATURES
• Synchronous Operation in relation to the input Clock
• 2 Stage Registers resulting in Pipeline operation
• On chip address counter (base +3) for Burst operations
• Self-Timed Write Cycles
• On-Chip Address and Control Registers
• Byte Write support
• Global Write support
• On-Chip low power mode [powerdown] via ZZ pin
• Interleaved or Linear Burst support via Mode pin
• Three Chip Enables for ease of depth expansion without
Data Contention.
• Two Cycle load, Single Cycle Deselect
• Asynchronous Output Enable (OE\)
• Three Pin Burst Control (ADSP\, ADSC\, ADV\)
• 3.3V Core Power Supply
• 3.3V/2.5V IO Power Supply
• JEDEC Standard 100 pin TQFP Package
• Available in Industrial, Enhanced, and Mil-Temperature
Operating Ranges
• RoHs compliant options available
DQPc
1
DQc
2
DQc
3
VDDQ
4
VSSQ
5
DQc
6
DQc
7
DQc
8
DQc
9
VSSQ
10
VDDQ
11
DQc
12
DQc
13
NC
14
VDD
15
NC
16
VSS
17
DQd
18
DQd
19
VDDQ
20
VSSQ
21
DQd
22
DQd
23
DQd
24
DQd
25
VSSQ
26
VDDQ
27
DQd
28
DQd
29
DQPd
30
SSRAM
AS5SP128K36
SSRAM [SPB]
80
DQPb
79
DQb
78
DQb
77
VDDQ
76
VSSQ
75
DQb
74
DQb
73
DQb
72
DQb
71
VSSQ
70
VDDQ
69
DQb
68
DQb
67
VSS
66
NC
65
VDD
64
ZZ
63
DQa
62
DQa
61
VDDQ
60
VSSQ
59
DQa
58
DQa
57
DQa
56
DQa
55
VSSQ
54
VDDQ
53
DQa
52
DQa
51
DQPa
FAST ACCESS TIMES
Parameter
Cycle Time
Clock Access Time
Output Enable Access Time
Symbol
tCYC
tCD
tOE
200Mhz
5.0
3.0
3.0
166Mhz
6.0
3.5
3.5
BLOCK DIAGRAM
OE\
ZZ
CLK
CE1\
CE2
CE3\
BWE\
BWx\
GW\
ADV
ADSC\
ADSP\
MODE
A0-Ax
CONTROL
BLOCK
BURST CNTL.
Address
Registers
Row
Decode
Column
Decode
I/O Gating and Control
Memory Array
x36
SBP
❑ Synchronous Pipeline
Burst
❋ Two (2) cycle load
❋ One (1) cycle
de-select
❋ One (1) cycle latency
on Mode change
133Mhz
7.5
4.0
4.0
Units
ns
ns
ns
GENERAL DESCRIPTION
The AS5SP128K36 is a 4.5Mb High Performance Synchronous
Pipeline Burst SRAM, available in multiple temperature
screening levels, fabricated using High Performance CMOS
technology and is organized as a 128K x 36. It integrates
address and control registers, a two (2) bit burst address
counter supporting four (4) double-word transfers. Writes are
internally self-timed and synchronous to the rising edge of
clock.
Output Output
Register Driver
Input
Register
The AS5SP128K36 includes advanced control options
including Global Write, Byte Write as well as an Asynchronous
Output enable. Burst Cycle controls are handled by three (3)
input pins, ADV, ADSP\ and ADSC\. Burst operation can be
initiated with either the Address Status Processor (ADSP\) or
DQx, DQPx _{Address Status Cache controller (ADSC\) inputs. Subsequent}
burst addresses are generated internally in the system’s burst
sequence control block and are controlled by Address Advance
(ADV) control input.
AS5SP128K36
Rev. 1.6 10/13
Micross Components reserves the right to change products or specifications without notice.
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