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 • 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. ** Page 2 of 6 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. ** Page 6 of 6