White Electronic Designs
512Kx16 SRAM MODULE
FEATURES
Access Times 17, 20, 25, 35ns MIL-STD-883 Compliant Devices Available Packaging • 44 pin Ceramic SOJ (Package 102) • 44 lead Ceramic Flatpack (Package 209) Organized as two banks of 256Kx16 Data Byte Control: Lower Byte (LB#) = I/O1-8 Upper Byte (UB#) = I/O9-16
WS512K16-XXX
ADVANCED*
Data I/O Compatible with 3.3V devices 2V Minimum Data Retention for battery back up operation Commercial, Industrial and Military Temperature Range 5 Volt Power Supply (3.3V parts also available) Low Power CMOS TTL Compatible Inputs and Outputs
* This product is under development, is not qualified or characterized and is subject to change or cancellation without notice.
PIN CONFIGURATION FOR WS512K16-XXX 44 CSOJ 44 FLATPACK Top View
A0 A1 A2 A3 A4 CS1# I/O1 I/O2 I/O3 I/O4 VCC GND I/O5 I/O6 I/O7 I/O8 WE# A5 A6 A7 A8 A9
Pin Description
A0-17 LB# UB# I/O1-16 CS1-2# OE# WE# VCC GND NC Address Inputs Lower-Byte Control (I/O1-8) Upper-Byte Control (I/O9-16) Data Input/Output Chip Select Output Enable Write Enable +5.0V Power Ground No Connection
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23
A17 A16 A15 OE# UB# LB# I/O16 I/O15 I/O14 I/O13 GND VCC I/O12 I/O11 I/O10 I/O9 CS2# A14 A13 A12 A11 A10
Block Diagram
A0 - 1 7 W E# O E# U B# L B#
256K x 16
256K x 16
C S1# C S2#
I/O1-16
White Electronic Designs Corp. reserves the right to change products or specifications without notice. April 1998 1 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
TRUTH TABLE
CS1# H L H L H H L H L CS2# H H L H L L H L H L H WE# X H X H OE# X H X L LB# X X H L H L L H L UB# X X Output Disable H H L L H L L Read Data Out High Z Data Out Data In High Z Data In High Z Mode Not Select Data I/O I/O1-8
WS512K16-XXX
ADVANCED
I/O9-16
Power Standby
High Z
Active
Write
High Z Data Out Data Out High Z Data In Data In
Active
Active
ABSOLUTE MAXIMUM RATINGS
Parameter Operating Temperature Storage Temperature Signal Voltage Relative to GND Junction Temperature Supply Voltage Symbol TA TSTG VG TJ VCC Min -55 -65 -0.5 -0.5 Max +125 +150 VCC+0.5 150 7.0 Unit °C °C V °C V
RECOMMENDED OPERATING CONDITIONS
Parameter Supply Voltage Input High Voltage Input Low Voltage Opertating 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
CAPACITANCE
TA = +25°C Parameter Input capacitance Output capacitance Symbol Conditions Max Unit CIN VIN = 0V, f = 1.0 MHz 25 pF COUT VOUT = 0V, f = 1.0 MHz 25 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 NOTE: DC test conditions: VIH = VCC -0.3V, VIL = 0.3V
Sym
ILI ILO ICC ISB 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 = 8mA, VCC = 4.5 IOH = -4.0mA, VCC = 4.5
Min
Max
10 10 290 30 0.4
Units
µA µA mA mA V V
2.4
DATA RETENTION CHARACTERISTICS
-55°C ≤ TA ≤ +125°C Characteristic Data Retention Supply Voltage Data Retention Current Sym VDR ICCDR1 Conditions CS# ≥ VCC -0.2V VCC = 3V Min 2.0 Typ 2.0 Max 5.5 12.0* Units µA mA
* Also available in Low Power version. Please call factory for informaion.
White Electronic Designs Corp. reserves the right to change products or specifications without notice. April 1998 2 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
AC CHARACTERISTICS
VCC = 5.0V, GND = 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 LB#, UB# Access Time LB#, UB# Enable to Low Z Output LB#, UB# Disable to High Z Output Symbol tRC tAA tOH tACS tOE tCLZ1 tOLZ1 tCHZ1 tOHZ1 tBA tBLZ1 tBHZ1 Min 17 0 17 10 2 0 9 9 10 0 9 0 10 5 0 10 10 12 0 12 -17 Max 17 0 20 12 5 0 12 12 14 Min 20 -20 Max 20 0 25 15 Min 25 -25
WS512K16-XXX
ADVANCED
-35 Max 25 0 35 20 5 0 15 15 17 0 15 Min 35 Max 35
Units ns ns ns ns ns ns ns ns ns ns ns ns
1. This parameter is guaranteed by design but not tested.
AC CHARACTERISTICS
VCC = 5.0V, GND = 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 LB#, UB# Valid to End of Write Symbol tWC tCW tAW tDW tWP tAS tAH tOW1 tWHZ1 tDH tBW Min 17 14 14 10 14 0 0 0 0 14 -17 Max Min 20 17 17 12 17 0 0 0 0 17 -20 Max Min 25 20 20 15 20 0 0 0 0 20 -25 Max Min 35 25 25 20 25 0 0 0 0 25 -35 Max ns ns ns ns ns ns ns ns ns ns ns Units
9
10
10
15
1. This parameter is guaranteed by design but not tested.
AC TEST CIRCUIT AC Test Conditions
I OL Current Source
D.U.T. C eff = 50 pf
VZ
1.5V
Parameter Input Pulse Levels Input Rise and Fall Input and Output Reference Level Output Timing Reference Level
Typ VIL = 0, VIH = 3.0 5 1.5 1.5
Unit V ns V V
(Bipolar Supply)
I OH Current Source
Notes: V Z is programmable from -2V to +7V. IOL & IOH programmable from 0 to 16mA. Tester Impedance Z0 = 75Ω. V Z 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. April 1998 3 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
TIMING WAVEFORM – READ CYCLE
WS512K16-XXX
ADVANCED
tRC
ADDRESS
tAA
CS#
tACS
LB#, UB#
tCHZ
tBA tBLZ tCLZ
OE#
tBHZ
tOE tOLZ
DATA I/O
HIGH IMPEDANCE
tOHZ
DATA VALID
READ CYCLE 1, (CS# = OE# = VIL, UB# or LB# = VIL, WE# = VIH)
READ CYCLE 2 (WE# = VIH)
WRITE CYCLE – WE# CONTROLLED
tWC
ADDRESS
tAW tCW
CS#
tAH
tBW
LB#, UB#
tAS
WE#
tWP tOW tWHZ tDW tDH
DATA I/O
DATA VALID
WRITE CYCLE 1, WE# CONTROLLED
WRITE CYCLE – CS# CONTROLLED
tWC
ADDRESS
WRITE CYCLE – LB#, UB# CONTROLLED
tWC
ADDRESS
tAS
CS#
tAW tCW tBW
tAH
CS#
tAS
tAW tCW tBW
tAH
LB#, UB#
LB#, UB#
tWP
WE# WE#
tWP tDW
DATA I/O
DATA VALID
tDW
DATA I/O
DATA VALID
tDH
tDH
WRITE CYCLE 2, CS# CONTROLLED
WRITE CYCLE 3, LB#, UB# CONTROLLED
White Electronic Designs Corp. reserves the right to change products or specifications without notice. April 1998 4 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
PACKAGE 102: 44 LEAD, CERAMIC SOJ
WS512K16-XXX
ADVANCED
28.70 (1.13) ± 0.25 (0.010) 0.2 (0.008) ± 0.05 (0.002)
3.96 (0.156) 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 26.7 (1.050) TYP
ALL LINEAR DIMENSIONS ARE MILLIMETERS AND PARENTHETICALLY IN INCHES
PACKAGE 209: 44 LEAD, CERAMIC FLAT PACK
28.45 (1.120) ± 0.26 (0.010) 3.18 (0.125) MAX
PIN 1 IDENTIFIER
12.95 (0.510) ± 0.13 (0.005)
9.90 (0.390) ± 0.13 (0.005)
10.16 (0.400) ± 0.51 (0.020)
0.43 (0.017) ± 0.05 (0.002) 26.67 (1.050) TYP
0.13 (0.005) ± 0.05 (0.002)
1.27 (0.050) TYP
ALL LINEAR DIMENSIONS ARE MILLIMETERS AND PARENTHETICALLY IN INCHES
White Electronic Designs Corp. reserves the right to change products or specifications without notice. April 1998 5 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
ORDERING INFORMATION
WS512K16-XXX
ADVANCED
W S 512K16 - XX X X X
LEAD FINISH: Blank = Gold plated leads A = Solder dip leads DEVICE GRADE: M = Military Screened I = Industrial C = Commercial
-55°C to +125°C -40°C to +85°C 0°C to +70°C
PACKAGE TYPE: DL = 44 Lead Ceramic SOJ (Package 102) FL = 44 Lead Ceramic Flatpack (Package 209) ACCESS TIME (ns) ORGANIZATION, two banks of 256Kx16 SRAM WHITE ELECTRONIC DESIGNS CORPORATION
White Electronic Designs Corp. reserves the right to change products or specifications without notice. April 1998 6 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
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