ETC CYM74P435C

PRELIMINARY
CYM74P435
512K Level II Extended Cache Module
Features
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.
• 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 synchronous 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.
Functional Description
This family of secondary cache modules is designed for Intel
P54C systems with the 82430FX (Triton) chipset.
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.
Logic Block Diagram - CYM74P435
TIO[10:8]
WE D
A(18:5)
GND
GND
32Kx8
TWE
CE
OE
TIO[7:0]
WE D
A[18:5]
GND
GND
CE
OE
D[63:0]
D
D
D[63:32]
D[31:0]
A[18:3]
A
A
ADSP
ADSP
ADSP
ADSC
ADV
ADSC
ADV
ADSC
ADV
CE
CE
OE
OE
WE0/1
WE2/3
CLK0
CCS
COE
CWE[7:0]
Intel is a registered trademark of Intel Corporation
Cypress Semiconductor Corporation
Document #: 38-05007 Rev. **
•
3901 North First Street
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San Jose
•
CA 95134 • 408-943-2600
Revised April 25, 2001
CYM74P435
PRELIMINARY
Part Number
74P435-66
Cache Size
Ram Type
512K
System Clock (MHz)
66
Data tCDV
8.5 ns
Tag tAA
15 ns
Document #: 38-05007 Rev. **
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CYM74P435
PRELIMINARY
Pin Configuration
Dual Read-Out SIMM (DIMM)
Top View
Document #: 38-05007 Rev. **
GND
TIO1
TIO7
TIO5
TIO3
TIO9
VCC
TIO10
CAA4
GND
COE
CWE5
CWE7
CWE1
VCC
CWE3
CAB3
CALE
GND
RSVD
A4
A6
A8
A10
VCC
A17
GND
A9
A14
A15
RSVD
PD0
PD2
PD4
GND
NC
GND
D63
VCC
D61
D59
D57
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
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
31
32
33
34
35
36
37
38
39
40
41
42
GND
TIO0
TIO2
TIO6
TIO4
TIO8
NC
TWE
CAA3
GND
CWE4
CWE6
CWE0
CWE2
NC
NC
NC
NC
GND
A3
A7
A5
A11
A16
NC
NC
GND
A12
A13
NC
CS
NC
PD1
PD3
GND
NC
GND
D62
NC
D60
D58
D56
GND
D55
D53
D51
D49
GND
D47
D45
D43
VCC
D41
D39
D37
GND
D35
D33
D31
VCC
D29
D27
D25
GND
D23
D21
D19
VCC
D17
D15
D13
GND
D11
D9
D7
VCC
D5
D3
D1
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
157
158
159
160
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
77
78
79
80
GND
D54
D52
D50
D48
GND
D46
D44
D42
NC
D40
D38
D36
GND
D34
D32
D30
NC
D28
D26
D24
GND
D22
D20
D18
NC
D16
D14
D12
GND
D10
D8
D6
NC
D4
D2
D0
GND
74B435–5
Page 3 of 6
CYM74P435
PRELIMINARY
Pin Definitions
Common Signals
Description
VCC
3.3V supply
GND
Ground
A[18:3]
Addresses from processor
COE
Output Enable
CWE[7:0]
Byte Write Enables
PD0-PD4
Presence Detect output pins
D[63:0]
Data lines from processor
TIO[10:0]
Tag data bits
TWE
Tag Write Enable signal
NC
Signal not connected on module
RSVD
Reserved
VCCQ
3.3V Supply
ADSP
Processor Address Strobe
ADSC
Cache Controller Address Strobe
ADV
Burst Address Advance
CCS
Chip Select
CLK[1:0]
Clock signals, CLK1 not used on CYM74P435
Presence Detect Pins
Synchronous Burst - CYM74P435
Document #: 38-05007 Rev. **
PD4
PD3
PD2
PD1
PD0
NC
GND
GND
NC
GND
Page 4 of 6
PRELIMINARY
CYM74P435
Maximum Ratings
DC Input Voltage –0.5V to +4.6V
(Above which the useful life may be impaired. For user guidelines, not tested.)
Storage Temperature –55°C to +125°C
Output Current into Outputs (LOW)20 mA
Ambient Temperature
with Power Applied –0°C to +70°C
3.3V Supply Voltage to Ground Potential –0.5V to +5.25V
5V Supply Voltage to Ground Potential –0.5V to +5.25V
Operating Range
Range
Commercial
Ambient
Temperature
VCC
VCCQ
3.3V ± 10%
0°C to
+70°C
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
Description
Test Condition
Min.
Max.
Unit
VIH
Input HIGH Voltage
2.2
VCC + 0.3
V
VIL
Input LOW Voltage
–0.3
0.8
V
VOH
Output HIGH Voltage
VCC = Min. IOH = −4 mA
VOL
Output LOW Voltage
VCC = Min. IOL = 8 mA
VCC Operating Supply Current
VCC = Max., IOUT = 0 mA, f = fMAX = 1/tRC
ICC
(74P435)
2.4
V
0.4
V
1400
mA
Ordering Information
Speed
(MHz)
66
Ordering Code
CYM74P435CPM-66C
Package
Name
Package Type
Description
Operating
Range
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
**
106010
05/07/01
MEG
New Spec
Document #: 38-05007 Rev. **
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