White Electronic Designs
2x512Kx8 DUALITHIC™ SRAM
FEATURES
Access Times 17, 20, 25, 35, 45, 55ns Revolutionary, Center Power/Ground Pinout Packaging: • 32 pin, Hermetic Ceramic DIP (Package 300) • 36 lead Ceramic SOJ (Package 100) • 36 lead Ceramic Flatpack (Package 226) Organized as two banks of 512Kx8
WS1M8-XXX
Commercial, Industrial and Military Temperature Ranges 5 Volt Power Supply Low Power CMOS TTL Compatible Inputs and Outputs
PIN CONFIGURATION FOR WS1M8-XDJX AND WS1M8-XFX
36 CSOJ 36 FLATPACK
PIN CONFIGURATION FOR WS1M8-XCX
32 DIP
TOP VIEW
NC A18 A17 A16 A15 OE# I/O7 I/O6 GND VCC I/O5 I/O4 A14 A13 A12 A11 A10 CS2#
TOP VIEW
A0 A1 A2 A3 A4 CS1# I/O0 I/O1 VCC GND I/O2 I/O3 WE# A5 A6 A7 A8 A9
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19
A18 A16 A14 A12 A7 A6 A5 A4 A3 A2 A1 A0 I/O0 I/O1 I/O2 GND
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
VCC A15 A17 WE# A13 A8 A9 A11 CS2# A10 CS1# I/O7 I/O6 I/O5 I/O4 I/O3
Pin Description
A0-18 I/O0-7 CS1-2# OE# WE# VCC GND Address Inputs Data Input/Output Chip Selects Output Enable Write Enable +5.0V Power Ground
I/O0-7 WE# OE# A0-18
Pin Description
A0-18 I/O0-7 CS1-2# WE# VCC GND Address Inputs Data Input/Output Chip Selects Write Enable +5.0V Power Ground
Block Diagram
Block Diagram
I/O0-7 WE# A0-18
512K x 8
512K x 8
512K x 8
512K x 8
NOTE: 1. CS1# and CS2# are used to select the lower and upper 512Kx8 of the device. CS1# and CS2# must not be enabled at the same time.
White Electronic Designs Corp. reserves the right to change products or specifications without notice. July 2004 Rev. 5 1 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
CS1# (1) CS2#
(1)
CS1# (1) CS2#
(1)
White Electronic Designs
ABSOLUTE MAXIMUM RATINGS
Parameter Operating Temperature Storage Temperature Signal Voltage Relative to GND Junction Temperature Supply Voltage Symbol TA TSTG VG TJ VCC -0.5 Min -55 -65 -0.5 Max +125 +150 VCC +0.5 150 7.0 Unit °C °C V °C V
WS1M8-XXX
TRUTH TABLE
CS# H L L L OE# X L X H WE# X H L H Mode Standby Read Write Out Disable Data I/O High Z Data Out Data In High Z Power Standby Active Active Active
NOTE: OE# is internally tied to the GND and not accessible on the WS1M8-XCXX.
RECOMMENDED OPERATING CONDITIONS
Parameter Supply Voltage Input High Voltage Input Low Voltage Operating Temp. (Mil.) Symbol VCC VIH VIL TA Min 4.5 2.2 -0.3 -55 Max 5.5 VCC + 0.3 +0.8 +125 Unit V V V °C Parameter Input capacitance Output capicitance
CAPACITANCE
TA = +25°C
Symbol CIN COUT Condition VIN = 0V, f = 1.0MHz VOUT = 0V, f = 1.0MHz Max 20 20 Unit pF pF
This parameter is guaranteed by design but not tested.
DC CHARACTERISTICS
VCC = 5.0V, VSS = 0V, -55°C ≤ TA ≤ +125°C
Parameter Input Leakage Current Output Leakage Current Operating Supply Current Standby Current Output Low Voltage Output High Voltage Sym ILI ILO1 ICC1 ISB1 VOL VOH Conditions VCC = 5.5, VIN = GND to VCC CS# = VIH, OE# = VIH, VOUT = GND to VCC CS# = VIL, OE# = VIH, f = 5MHz, VCC = 5.5 CS# = VIH, OE# = VIH, f = 5MHz, VCC = 5.5 IOL = 6mA IOH = -4.0mA 2.4 Min Max 10 10 180 40 0.4 Units µA µA mA mA V V
NOTE: DC test conditions: VIH = VCC -0.3V , VIL = 0.3V 1. OE# is internally tied to the GND and not accessible on the WS1M8-XCXX.
White Electronic Designs Corp. reserves the right to change products or specifications without notice. July 2004 Rev. 5 2 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
AC CHARACTERISTICS
VCC = 5.0V, VSS = 0V, -55°C ≤ TA ≤ +125°C Parameter Read Cycle Read Cycle Time Address Access Time Output Hold from Address Change Chip Select Access Time Output Enable to Output Valid Chip Select to Output in Low Z Output Enable to Output in Low Z Chip Disable to Output in High Z Output Disable to Output in High Z Symbol tRC tAA tOH tACS tOE2 tCLZ1 tOLZ2 tCHZ1 tOHZ2 -17 Min 17 0 17 9 2 0 9 9 2 0 10 10 Max 17 0 20 10 2 0 12 12 Min 20 -20 Max 20 0 25 12 4 0 15 15 Min 25 -25 Max 25 0 35 25 4 0 Min 35 -35 Max 35 0 Min 45
WS1M8-XXX
-45 Max 45 0 45 25 4 0 20 20 Min 55
-55 Max 55 55 25
Units ns ns ns ns ns ns ns ns ns
20 20
1. This parameter is guaranteed by design but not tested. 2. OE# is internally tied to the GND and not accessible on the WS1M8-XCXX.
AC CHARACTERISTICS
VCC = 5.0V, VSS = 0V, -55°C ≤ TA ≤ +125°C Parameter Write Cycle Write Cycle Time Chip Select to End of Write Address Valid to End of Write Data Valid to End of Write Write Pulse Width Address Setup Time Address Hold Time Output Active from End of Write Write Enable to Output in High Z Data Hold Time Symbol tWC tCW tAW tDW tWP tAS tAH tOW1 tWHZ1 tDH 17 14 14 9 14 0 0 2 9 0 0 -17 20 14 14 10 14 0 0 3 9 0 -20 25 15 15 10 15 0 0 4 10 0 -25 35 25 25 20 25 0 0 4 15 0 -35 45 35 35 25 35 0 5 5 15 0 -45 55 50 50 25 40 0 5 5 25 -55 Units ns ns ns ns ns ns ns ns ns ns
1. This parameter is guaranteed by design but not tested.
AC TEST CIRCUIT
I OL Current Source
AC TEST CONDITIONS
Parameter Input Pulse Levels Input Rise and Fall Input and Output Reference Level Output Timing Reference Level
VZ
Typ VIL = 0, VIH = 3.0 5 1.5 1.5
Unit V ns V V
D.U.T. C eff = 50 pf
≈ 1.5V
(Bipolar Supply)
I OH Current Source
Notes: VZ is programmable from -2V to +7V. IOL & IOH programmable from 0 to 16mA. Tester Impedance Z0 = 75 Ω. VZ is typically the midpoint of VOH and VOL. IOL & IOH are adjusted to simulate a typical resistive load circuit. ATE tester includes jig capacitance.
White Electronic Designs Corp. reserves the right to change products or specifications without notice. July 2004 Rev. 5 3 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
TIMING WAVEFORM – READ CYCLE
tRC
ADDRESS
WS1M8-XXX
tRC
ADDRESS
tAA
CS#
tAA
tACS
tOH
DATA I/O
PREVIOUS DATA VALID DATA VALID
tCHZ
tCLZ
OE#
READ CYCLE 1 (CS# = OE# = VIL, WE# = VIH)
tOE tOLZ
DATA I/O
HIGH IMPEDANCE
tOHZ
DATA VALID
READ CYCLE 2 (WE# = VIH)
NOTE: OE# is internally tied to the GND and not accessible on the WS1M8-XCXX.
WRITE CYCLE – WE# CONTROLLED
tWC ADDRESS tAW tCW CS# tAS WE# tWHZ DATA I/O tDW tWP tOW tDH tAH
DATA VALID WRITE CYCLE 1, WE# CONTROLLED
WRITE CYCLE – CS# CONTROLLED
tWC
ADDRESS
tAS
CS#
tAW tCW
tAH
tWP
WE#
tDW
DATA I/O
DATA VALID
tDH
WRITE CYCLE 2, CS# CONTROLLED
White Electronic Designs Corp. reserves the right to change products or specifications without notice. July 2004 Rev. 5 4 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
PACKAGE 100: 36 LEAD, CERAMIC SOJ
WS1M8-XXX
23.37 (0.920) ± 0.25 (0.010) 0.20 (0.008) ± 0.05 (0.002)
4.76 (0.184) MAX 0.89 (0.035) Radius TYP
11.3 (0.446) ± 0.2 (0.009)
9.55 (0.376) ± 0.25 (0.010)
1.27 (0.050) ± 0.25 (0.010)
PIN 1 IDENTIFIER 1.27 (0.050) TYP 21.59 (0.850) TYP 0.43 (0.017) ± 0.05 (0.002)
ALL LINEAR DIMENSIONS ARE MILLIMETERS AND PARENTHETICALLY IN INCHES
PACKAGE 226: 36 LEAD, CERAMIC FLAT PACK
23.37 (0.920) ± 0.25 (0.010) 3.18 (0.125) MAX PIN 1 IDENTIFIER
12.95 (0.510) ± 0.13 (0.005)
12.7 (0.500) ± 0.5 (0.020)
5.1 (0.200) ± 0.25 (0.010) 0.43 (0.017) ± 0.05 (0.002) 3.8 (0.150) TYP 32.64 (1.285) TYP 38.1 (1.50) ± 0.4 (0.015) 1.27 (0.050) TYP 21.59 (0.850) TYP
0.127 (0.005) ± 0.05 (0.002)
ALL LINEAR DIMENSIONS ARE MILLIMETERS AND PARENTHETICALLY IN INCHES
White Electronic Designs Corp. reserves the right to change products or specifications without notice. July 2004 Rev. 5 5 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
WS1M8-XXX
PACKAGE 300: 32 PIN, CERAMIC DIP, SINGLE CAVITY SIDE BRAZED
42.4 (1.670) ± 0.4 (0.016) 15.04 (0.592) ± 0.3 (0.012) 4.34 (0.171) ± 0.79 (0.031)
PIN 1 IDENTIFIER
0.84 (0.033) ± 0.4 (0.014)
ALL LINEAR DIMENSIONS ARE MILLIMETERS AND PARENTHETICALLY IN INCHES
ORDERING INFORMATION
W S 1M8 X - XXX X X X
LEAD FINISH: Blank = Gold plated leads A = Solder dip leads DEVICE GRADE: M = Military Screened -55°C to +125°C I = Industrial -40°C to +85°C C = Commercial 0°C to +70°C PACKAGE: C = 32 pin Ceramic 0.600" DIP (Package 300) DJ = 36 Lead Ceramic SOJ (Package 100) F = 36 Lead Ceramic Flatpack (Package 226) ACCESS TIME (ns) IMPROVEMENT MARK: Blank = Standard Power ORGANIZATION, two banks of 512K x 8 SRAM WHITE ELECTRONIC DESIGNS CORP.
White Electronic Designs Corp. reserves the right to change products or specifications without notice. July 2004 Rev. 5 6 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
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