
2White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com
White Electronic Designs
WMS512K8-XXX
October 2004
Rev. 10
White Electronic Designs Corp. reserves the right to change products or specifi cations without notice.
Parameter Symbol Conditions Min Max Unit
Input Leakage Current ILI VCC = 5.5, VIN = GND to VCC 10 A
Output Leakage Current ILO CS# = VIH, OE# = VIH, VOUT = GND TO VCC 10 A
Operating Supply Current* ICC CS# = VIH, OE# = VIH, f = 5MHz, VCC = 5.5, 160 mA
Standby Current ISS CS# = VIH, OE# = VIH, f = 5MHz, VCC = 5.5 0.45 mA
Output Low Voltage VOL IOL = 6mA for 17 - 35ns,
IOL = 2.1mA for 45 - 55ns, VCC = 4.5 0.4 V
Output High Voltage VOH IOH = -4.0mA for 17 - 35ns,
IOH = 1.0mA for 45 - 55ns, VCC = 4.5 2.4 V
DC Characteristics - CMOS Compatible
(VCC = 5.0V, GND = 0V, -55°C ≤TA ≤ 125°C)
Recommended Operating Conditions
Parameter Symbol Min Max Unit
Supply Voltage VCC 4.5 5.5 V
Input High Voltage VIH 2.2 VCC + 0.3 V
Input Low Voltage VIL -0.3 +0.8 V
Operating Temp. (Mil) TA-55 +125 °C
Capacitance
(TA = +25°C)
Parameter
Symbol
Conditions Package Speed (ns) Max Unit
Input capacitance CIN
V
IN
= 0 V, f = 1.0 MHz
32 pin CSOJ, DIP, Flat Pack Evolutionary 15 to 55 20 pF
32 pin CLCC 15 to 55 15 pF
36 pin CSOJ & Flat Pack Revolutionary 15 to 35 12 pF
45 to 55 20 pF
Output
capacitance COUT
V
OUT
= 0 V, f = 1.0 MHz
32 pin CSOJ, DIP, Flat Pack Revolutionary 15 to 55 20 pF
36 pin CSOJ & Flat Pack Revolutionary 15 to 35 12 pF
45 to 55 20 pF
This parameter is guaranteed by design but not tested.
Absolute Maximum Ratings
Parameter Symbol Min Max Unit
Operating Temperature TA-55 +125 °C
Storage Temperature Range TSTG -65 +150 °C
Signal Voltage Range to GND VG-0.5 VCC-0.5 V
Junction Temperature TJ150 °C
Supply Voltage Range (VCC)V
CC -0.5 7.0 V
Truth Table
CS# OE# WE# MODE DATA I/O POWER
H X X Standby High Z Standby
L L H Read Data Out Active
L X L Write Data In Active
L H H Out Disable High Z Acvive
Parameter Symbol Conditions Min Max Unit
Data Retention Supply Voltage VDR CS#3 VCC -0.2V 2.0 5.5 V
Low Power Data Retention ICCDR1 VCC = 3V 7 mA
Low Power Data Retention ICCDR2 VCC = 2V 2 mA
Data retention characteristics for low power “l” version