AKCM6432T_09 ACCUTEK | Alldatasheet

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Technical content

5 New Pasture Road • Newburyport, MA 01950-4040 • Phone: 978-465-6200 • Fax: 978-462-3396 • www.accutekmicro.com ACCUTEK ACCUTEKMICROCIRCUIT CORPORATION AKCM6432T 512KB SECONDARY CACHE MODULE FOR THE PENTIUM CPU AND 82430 PCISETS

FEATURES

  • 64K x 64 Configuration
  • 16K x 11 Tag SRAM Field
  • Low profile card edge module with 160 leads
  • Separate 5V and 3.3V power supplies
  • Multiple GND pins and decoupling capacitors for maximum noise immunity.
  • Synchronous SRAM with Burst Counter

DESCRIPTION

The AKCM6432T Module uses four 32K x 32 pipelined burst RAMs in surface mount packages mounted on a multi-layer FR4 board. In addition, it uses two 5V 8-bit wide SRAMs to achieve an eleven bit tag field. Four PD (presence detect) input pins allow the system to determine the particular cache configuration. The low profile card edge package allows 160 single leads to be placed on a package 4.35” long, a maximum of 0.350” thick and a maximum of 1.14” tall. All inputs and outputs are TLL- compatible, and operate from separate 5V (+/- 5%) and 3.3V (+10/-5%) power supplies. Multiple GND pins and on-board decoupling capacitors ensure maximum protection from noise.

A3 - A4 Address Inputs (Burst SRAMs only) D0 - D63 Cache Data Inputs/Outputs TIO0 - TIO10 Tag Inputs/Outputs OE# Cache Data Output Enab led Input TWE# Tag Write Enable Input WE#0 - WE#7 Cache Data Write Enable Inputs CS# Cache Data Chip Enable Input (Burst only) CADSc# Cache Address Status Input (Burst SRAMs only) CADSp# Processor Address Status Input (Burst only) CADV# Burst Address Advance (Burst SRAMs only) GW# Global Write Input (Burst SRAMS only) BWE# Byte Write Enable Input (Burst SRAMS only) LBO# Linear Burst Order CLK0 - CLK1 Clock Inputs (Burst SRAMS only) PD0 - PD4 Presence Detect Pins NC No Connect GND Ground Vcc5 5 Volt Power Supply Vcc3 3.3 Volt Power Supply PRESENCE DETECT TABLE PD4 PD3 PD2 PD1 PD0 Module NC NC NC NC NC No Cache Present GND GND NC GND GND 512KB Pipelined Burst

Symbol Parameter Min. Typ. Max. Unit Vcc3 Supply Voltage 3.146 3.3 3.6 V Vcc5 Supply Voltage 4.75 5 5.25 V GND Supply Voltage 0 0 0 V VIH Input High Voltage 2.2 - Vcc + 0.3 V VIL Input Low Voltage -0.5(1) - 0.8 V NOTE: 1. VIL = -1.0V for pulse width less than 5ns, once per cycle RECOMMENDED OPERATING TEMPERATURE AND SUPPLY VOLTAGE Power Plane Ambient Temperature GND VCC Vcc3 00C to +700C 0V 3.3V +10/-5% Vcc5 00C to +700C 0V 5.0V +/- 5% ABSOLUTE MAXIMUM RATINGS Symbol Rating Value Unit VTERM Terminal Voltage with Respect -0.5 to V to GND Vcc + 0.5 VTERM Terminal Voltage with Respect -0.5 to +4.6 V for Vcc3 to GND (Vcc terminals only) TA Operating Temperature 0 to +70 0C TBIAS Temperature Under Bias -10 to +85 0C TSTG Storage Temperature -55 to +125 0C IOUT DC Output Current 50 mA SRAM ACCESS TIMES Module Speed Asych Burst (1) Tag 66MHZ 15nS 8.0nS 15nS NOTE: 1. Burst SRAMS are measured by Clock to Data Out (tCD) CAPACITANCE(1,2) (TA = +250C, f = 1.0 MHZ) Symbol Parameter(1 Condition Value Unit CIN1 Input Capacitance VIN = 0V 30 pF (Address) CIN3 Input Capacitance VIN = 0V 25 pF (OE#) CIN4 Input Capacitance VIN = 0V 8 pF (WE#, TWE#) CI/O I/O Capacitance VOUT = 0V 20 pF NOTES: 1. These parameters are guaranteed by design but not tested 2. These parameters are maximum values

DC ELECTRICAL CHARACTERISTICS Symbol Parameter Test Condition Min. Max. Unit ILI Input Leakage Current Vcc = Max, VIN = GND to Vcc - 50 µA (Address) ILI Input Leakage Current Vcc = Max, VIN = GND to Vcc - 20 µA (Data and Control) ILO Output Leakage Curent VOUT = 0V to Vcc, Vcc = Max - 20 µA VOL Output Low Voltage IOL = 8mA, Vcc = Min - 0.4 V VOH Output High Voltage IOH = -4mA, Vcc = Min 2.4 - V ICC3 Operating 3.3V Power Vcc3 = Max, CE = VIL - 620 mA Supply Curent f = fMAX, Outputs Open ICC5 Operating 5V Power Vcc5 = Max, CE = VIL - 180 mA Supply Current f = fMAX, Outputs Open ISB3 Standby 3.3V Power Vcc3 = Max, CE = VIH - 120 mA Supply Current f = fMAX, Outputs Open ISB31 Full Standby 3.3V Power Vcc3 = Max, CE = Vcc - 0.2V, f = 0, - 60 mA Supply Current VIN = 0.2V or VIN = Vcc - 0.2V, Outputs Open

CONTRACT NO. ACCUTEK MICROCIRCUIT CORP. NEWBURYPORT, MA 01950 DWGAPPROVALS DATE DRAWN CHECKED ISSUED SCALE SHEET REV.DWG NO.FSCM NO.SIZE A COAST MODULE AKCM6432T 1 GN 11/21/07 1 of 2 160 REV1 AKCM6432T 4.340" 1.130" 0.500" 0.110" 0.074" 0.300"