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CYM74P435C

型号：

CYM74P435C

描述：

内存\n[ Memory ]

品牌：

ETC[ ETC ]

页数：

6 页

PDF大小：

85 K

下载PDF手册
PRELIMINARY  
CYM74P435  
512K Level II Extended Cache Module  
The CYM74P435 is a 512-KB module, organized as 64K by  
64-bits with two 32Kx8 tag RAMS that supports 3-1-1-1 read  
and 4-2-2-2 write cycles at CPU bus speeds up to 66 MHz.  
Features  
• 512K Cache Module with Extended Cache ability  
• Synchronous configuration with presence and  
configuration detect pins  
• 66 MHz operation  
• Uses high-performance synchronous SRAMs  
• 160-position Burndy DIMM CELP2X80SC3Z48  
connector  
• 3.3V compatible inputs/data outputs  
The synchronous modules are available with low cost synchro-  
nous pipelined RAMs. The synchronous pipelined modules  
are based on a 64K x 32 RAM. Multiple ground pins and  
on-board decoupling capacitors ensure high performance with  
maximum noise immunity.  
All components on the cache modules are surface mounted on  
a multi-layer epoxy laminate (FR-4) substrate. The contact  
pins are plated with 150 micro-inches of nickel covered by  
10 micro-inches of gold flash.  
Functional Description  
This family of secondary cache modules is designed for Intel  
P54C systems with the 82430FX (Triton) chipset.  
Logic Block Diagram - CYM74P435  
TIO[10:8]  
TIO[7:0]  
D[63:0]  
D
WE  
A(18:5)  
GND  
GND  
CE  
OE  
32Kx8  
WE D  
TWE  
A[18:5]  
GND  
GND  
CE  
OE  
D
D
D[63:32]  
D[31:0]  
A[18:3]  
ADSP  
A
A
ADSP  
ADSP  
ADSC  
ADV  
ADSC  
ADV  
ADSC  
ADV  
CE  
CE  
OE  
OE  
WE2/3  
WE0/1  
CLK0  
CCS  
COE  
CWE[7:0]  
Intel is a registered trademark of Intel Corporation  
Cypress Semiconductor Corporation  
•
3901 North First Street  
•
San Jose  
•
CA 95134  
•
408-943-2600  
Document #: 38-05007 Rev. **  
Revised April 25, 2001  
CYM74P435  
PRELIMINARY  
Part Number  
74P435-66  
Cache Size  
Ram Type  
512K  
66  
System Clock (MHz)  
Data tCDV  
8.5 ns  
15 ns  
Tag tAA  
Document #: 38-05007 Rev. **  
Page 2 of 6  
CYM74P435  
PRELIMINARY  
Pin Configuration  
Dual Read-Out SIMM (DIMM)  
Top View  
GND  
GND  
81  
82  
83  
84  
85  
86  
87  
88  
89  
90  
91  
92  
93  
94  
95  
96  
1
2
3
4
5
6
7
8
9
TIO  
TIO  
1
0
TIO  
7
TIO  
2
TIO  
TIO  
5
6
TIO  
4
TIO  
3
TIO9  
TIO8  
V
CC  
NC  
TIO10  
TWE  
CAA  
CAA  
3
4
GND  
COE  
GND  
CWE  
CWE  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
4
6
CWE  
5
CWE  
7
CWE  
0
CWE  
1
CC  
CWE  
NC  
NC  
NC  
NC  
2
V
CWE  
3
CAB  
3
97  
98  
99  
CALE  
GND  
GND  
RSVD  
100  
101  
102  
103  
104  
105  
106  
107  
108  
109  
110  
111  
112  
113  
114  
115  
116  
A
3
7
A
4
A
A
A
6
5
A
8
A
11  
A
A
16  
10  
V
NC  
NC  
CC  
A
17  
GND  
A
9
GND  
A
12  
A
A
14  
13  
A
NC  
CS  
NC  
15  
RSVD  
PD  
0
PD  
2
PD  
1
PD  
PD  
3
4
GND  
NC  
GND  
NC  
GND  
GND  
117  
118  
119  
120  
121  
122  
D
D
63  
62  
NC  
V
CC  
D
D
61  
60  
58  
56  
D
57  
D
59  
D
D
GND  
GND  
123  
124  
125  
126  
127  
128  
129  
130  
131  
132  
133  
134  
135  
136  
137  
138  
139  
140  
141  
142  
143  
144  
145  
146  
147  
148  
149  
150  
151  
152  
153  
154  
155  
156  
43  
44  
45  
46  
47  
48  
49  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
61  
62  
63  
64  
65  
66  
67  
68  
69  
70  
71  
72  
73  
74  
75  
76  
D
D
55  
53  
51  
54  
52  
D
D
D
D
50  
48  
D
D
49  
GND  
GND  
D
D
D
V
47  
45  
43  
CC  
D
D
46  
D
44  
D
42  
NC  
D
D
41  
39  
37  
40  
38  
D
D
D
36  
GND  
GND  
D
D
D
34  
35  
33  
D
32  
D
D
CC  
30  
31  
NC  
V
D
D
D
D
D
29  
27  
28  
26  
24  
D
25  
GND  
GND  
D
D
D
21  
22  
20  
23  
D
D
D
CC  
D
18  
19  
V
NC  
D
17  
16  
D
D
D
D
15  
13  
14  
12  
GND  
GND  
D
D
D
11  
10  
8
D
9
D
7
D
6
NC  
V
CC  
D
D
5
3
1
D
157  
158  
159  
160  
77  
78  
79  
80  
4
D
2
D
D
0
74B435–5  
GND  
GND  
Document #: 38-05007 Rev. **  
Page 3 of 6  
CYM74P435  
PRELIMINARY  
Pin Definitions  
Common Signals  
Description  
VCC  
3.3V supply  
GND  
Ground  
A[18:3]  
COE  
Addresses from processor  
Output Enable  
CWE[7:0]  
PD0-PD4  
D[63:0]  
TIO[10:0]  
TWE  
Byte Write Enables  
Presence Detect output pins  
Data lines from processor  
Tag data bits  
Tag Write Enable signal  
Signal not connected on module  
Reserved  
NC  
RSVD  
VCCQ  
3.3V Supply  
ADSP  
ADSC  
ADV  
Processor Address Strobe  
Cache Controller Address Strobe  
Burst Address Advance  
Chip Select  
CCS  
CLK[1:0]  
Clock signals, CLK1 not used on CYM74P435  
Presence Detect Pins  
PD4  
PD3  
PD2  
PD1  
PD0  
Synchronous Burst - CYM74P435  
NC  
GND  
GND  
NC  
GND  
Document #: 38-05007 Rev. **  
Page 4 of 6  
PRELIMINARY  
CYM74P435  
DC Input Voltage –0.5V to +4.6V  
Maximum Ratings  
(Above which the useful life may be impaired. For user guide-  
lines, not tested.)  
Output Current into Outputs (LOW)20 mA  
Operating Range  
Storage Temperature –55°C to +125°C  
Ambient Temperature  
with Power Applied –0°C to +70°C  
Ambient  
Tempera-  
Range  
ture  
VCC  
VCCQ  
3.3V Supply Voltage to Ground Potential –0.5V to +5.25V  
5V Supply Voltage to Ground Potential –0.5V to +5.25V  
Commercial  
0°C to  
+70°C  
3.3V ± 10% 3.3V/2.5V  
+/- 10%  
DC Voltage Applied to Outputs  
in High Z State –0.5V to +4.6V  
Electrical Characteristics Over the Operating Range  
Parameter  
VIH  
Description  
Input HIGH Voltage  
Input LOW Voltage  
Output HIGH Voltage  
Output LOW Voltage  
Test Condition  
Min.  
2.2  
Max.  
VCC + 0.3  
0.8  
Unit  
V
V
VIL  
–0.3  
2.4  
VOH  
VCC = Min. IOH = −4 mA  
VCC = Min. IOL = 8 mA  
V
VOL  
0.4  
V
ICC (74P435)  
VCC Operating Supply Current VCC = Max., IOUT = 0 mA, f = fMAX = 1/tRC  
1400  
mA  
Ordering Information  
Speed  
Package  
Name  
Operating  
Range  
(MHz)  
Ordering Code  
CYM74P435CPM-66C  
Package Type  
Description  
66  
PM49  
160-pin Dual Read-Out S(D)IMM Sync pipelined 512 KB Commercial  
Package Diagrams  
160-pin Dual Read-Out S(D)IMM PM49  
Document #: 38-05007 Rev. **  
Page 5 of 6  
© Cypress Semiconductor Corporation, 2001. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use  
of any circuitry other than circuitry embodied in a Cypress Semiconductor product. Nor does it convey or imply any license under patent or other rights. Cypress Semiconductor does not authorize  
its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress  
Semiconductor products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress Semiconductor against all charges.  
CYM74P435  
PRELIMINARY  
Document Title: CYM74P435 512 Level II Extended Cache Module  
Document Number: 38-05007  
REV.  
ECN NO.  
Issue Date  
Orig. of Change  
Description of Change  
New Spec  
**  
106010  
05/07/01  
MEG  
Document #: 38-05007 Rev. **  
Page 6 of 6  
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