MC804256K32L-12 MOSYS, MC804256K32L-12 Datasheet

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MC804256K32L-12

Manufacturer Part Number
MC804256K32L-12
Description
Stand Alone Memories Based on Its 1T-SRAM Technology
Manufacturer
MOSYS
Datasheet
______________________________________________
Overview
The MoSys MC804256K is a low power flow-through
synchronous SRAM. Fabricated using an advanced low
power, high performance CMOS process, the MoSys
MC804256K is forward pin and function compatible with
standard 32Kx32/36, 64Kx32/36 and 128Kx32/36 SRAM
devices. These devices also include additional operating
features like low power ZZ standby mode and linear
burst order addressing. These additional operating fea-
tures are defined so that, with proper implementation,
designs can work transparently with
64Kx32/36, 128Kx32/36 and 256Kx32/36 configurations.
This allows the designer maximum configuration flexi-
bility within a single footprint layout.
The MoSys MC804256K32/36 supports flow-through
SRAM operating modes at maximum burst frequency
including indefinite pipeline read or write (2-1-1-1-1-1-
1...)
DS13, Rev 1.2 – 8/25/99
Clock to High-Z
High performance, low power flow-through SRAM
High performance
Low power
Compatibility
Applications
Access Time
Cycle Time
Parameter
66, 83, 100 MHz Speed grades
2-1-1-1 Burst Read
1-1-1-1 Burst Write
2-1-1-1-1-1-1-1... burst operation
Low active power
Ultra low power ZZ standby mode
Single 3.3V supply (VDD)
Isolated 3.3V or 2.5V I/O supply (VDDQ)
Individual Byte Write and Global Write masking
Interleave and burst address support
Two chip enables for easy expansion
Industry standard 100-Pin SRAM pinout
Industry standard SRAM specification
Power sensitive portable DSP applications
Ideal for high speed, low power communica-
Ultra low power for high capacity applications
tions buffers
Symbol
tKQHZ
tKC
tKQ
© 1999 MoSys Inc., All Rights Reserved, 1020 Stewart Drive, Sunnyvale, CA 94086
-15
8.6
15
10
-12
7.5
12
9
-10
8.5
10
32Kx32/36,
5
Preliminary Information
Units
256Kx32, 256Kx36 Flow-Through
ns
ns
ns
MC804256K32, MC804256K36
The MC804256K is packaged in a standard 100-pin
LQFP.
Lowest Power
The MC804256K flow-through SRAM affords systems
dramatic power savings due to the benefits of its pro-
prietary MoSys technology. Peak operating power of a
typical SRAM is 5x that of the MC804256K. This makes
it ideal for portable applications as well as applications
requiring a large amount of static RAM.
Part Number Designation
Example : MC804256K32L-15 I
Device Designation: MC8 :, Series: 04
Organization: 256K32, 256K36
Package Type: L =LQFP
Speed: – 15
Temp: I = Industrial Temperature, optional
Synchronous Burst SRAM
NC, (DQP4)
NC, (DQP3)
VDDQ
VDDQ
VDDQ
VDDQ
VSSQ
VSSQ
VSSQ
VSSQ
DQ17
DQ18
DQ19
DQ20
DQ22
DQ23
DQ24
DQ25
DQ26
DQ27
DQ28
DQ29
DQ30
DQ32
DQ21
DQ31
VDD
VSS
NC
NC
– 12
– 10
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Figure 1. Pin Function
66 MHz
83 MHz
100 MHz
0.65 mm nominal pin pitch
20 mm x 14 mm body
100 Pin LQFP
80
79
78
77
76
75
74
73
72
70
69
68
67
66
65
64
63
62
60
59
58
57
56
55
54
53
52
71
61
51
DQ16
DQ15
VDDQ
VSSQ
DQ14
DQ13
DQ12
DQ11
VSSQ
VDDQ
DQ10
DQ9
VSS
NC
VDD
ZZ
DQ8
DQ7
VDDQ
VSSQ
DQ6
DQ5
DQ4
DQ3
VSSQ
VDDQ
DQ2
DQ1
NC, (DQP1)
NC, (DQP2)
Page 1

Related parts for MC804256K32L-12

MC804256K32L-12 Summary of contents

Page 1

... MoSys technology. Peak operating power of a typical SRAM is 5x that of the MC804256K. This makes it ideal for portable applications as well as applications requiring a large amount of static RAM. 32Kx32/36, Part Number Designation Example : MC804256K32L-15 I Device Designation: MC8 :, Series: 04 Organization: 256K32, 256K36 Package Type: L =LQFP Speed: – 15 – 12 – ...

Page 2

... CLK ADV# ADSC# ADSP# A[17:0] GW# BWE# BW4# BW3# BW2# BW1# CE1# CE2 OE# DS13, Rev 1.2 – 8/25/99 © 1999 MoSys Inc., All Rights Reserved, 1020 Stewart Drive, Sunnyvale, CA 94086 MC804256K32, MC804256K36 256Kx32, 256Kx36 Flow-Through Synchronous Burst SRAM Binary Counter CLK Q0 CE# Q1 CLR ...

Page 3

... Input High Voltage V il Input Low Voltage Ts Storage Temperature Notes: Max Vih is not to exceed maximum VDDQ DS13, Rev 1.2 – 8/25/99 © 1999 MoSys Inc., All Rights Reserved, 1020 Stewart Drive, Sunnyvale, CA 94086 MC804256K32, MC804256K36 256Kx32, 256Kx36 Flow-Through Synchronous Burst SRAM Symbol Type Description ...

Page 4

... ZZ > 2.8 volts; cycle time > tKC min max load I Sleep mode, clock stopped, all inputs > 2 max DDZ DS13, Rev 1.2 – 8/25/99 © 1999 MoSys Inc., All Rights Reserved, 1020 Stewart Drive, Sunnyvale, CA 94086 MC804256K32, MC804256K36 256Kx32, 256Kx36 Flow-Through Synchronous Burst SRAM Condition Min 3.3V ± ...

Page 5

... OE# to output invalid tWS GW#, BWx# setup tWH GW#, BWx# hold tZZs ZZ standby tZZREC ZZ recovery DS13, Rev 1.2 – 8/25/99 © 1999 MoSys Inc., All Rights Reserved, 1020 Stewart Drive, Sunnyvale, CA 94086 MC804256K32, MC804256K36 256Kx32, 256Kx36 Flow-Through Synchronous Burst SRAM -10 -12 (100 MHz) (83 MHz) (66 MHz) Min ...

Page 6

... OE# tOELZ Data-Out 1a tKQLZ tKQ Data-In DS13, Rev 1.2 – 8/25/99 © 1999 MoSys Inc., All Rights Reserved, 1020 Stewart Drive, Sunnyvale, CA 94086 MC804256K32, MC804256K36 256Kx32, 256Kx36 Flow-Through Synchronous Burst SRAM Burst Read tKC tKH tKL ADSP# is blocked by CE1# inactive tADSH ADSC# initiated read ...

Page 7

... CE2 tCES tCEH CE3# OE# Data-Out tDS Data-In 1a DS13, Rev 1.2 – 8/25/99 © 1999 MoSys Inc., All Rights Reserved, 1020 Stewart Drive, Sunnyvale, CA 94086 MC804256K32, MC804256K36 256Kx32, 256Kx36 Flow-Through Synchronous Burst SRAM Burst Write Write tKC tKH tKL ADSP# is blocked by CE1# inactive tADSH ...

Page 8

... OE# tOELZ Data-Out 1a tKQLZ tKQ Data-In DS13, Rev 1.2 – 8/25/99 © 1999 MoSys Inc., All Rights Reserved, 1020 Stewart Drive, Sunnyvale, CA 94086 MC804256K32, MC804256K36 256Kx32, 256Kx36 Flow-Through Synchronous Burst SRAM Single Write Burst Read ADSP# is blocked by CE1# inactive tADSS tADSH ADSC# initiated read ...

Page 9

... OE# tOELZ Data-Out 1a tKQLZ tKQ Data-In ZZ DS13, Rev 1.2 – 8/25/99 © 1999 MoSys Inc., All Rights Reserved, 1020 Stewart Drive, Sunnyvale, CA 94086 MC804256K32, MC804256K36 256Kx32, 256Kx36 Flow-Through Synchronous Burst SRAM Snooze - With Data Retention tKC tKH tKL tAAH tWH tWH tWH ...

Page 10

... VDDQ/2 on the input waveform to the output waveform moving off 20% from its initial to final value VDDQ/2. Figure 7. LQFP Mechanical Characteristics DS13, Rev 1.2 – 8/25/99 © 1999 MoSys Inc., All Rights Reserved, 1020 Stewart Drive, Sunnyvale, CA 94086 MC804256K32, MC804256K36 256Kx32, 256Kx36 Flow-Through Synchronous Burst SRAM Preliminary Information ...

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