HC6856 Datasheet, PDF (4/12 Pages) Honeywell Solid State Electronics Center – 32K x 8 STATIC RAM

HC6856
ABSOLUTE MAXIMUM RATINGS (1)
Symbol
Parameter
Rating
Min
Max
Units
VDD
Positive Supply Voltage (2)
-0.5
7.0
V
VPIN
Voltage on Any Pin (2)
-0.5
VDD+0.5
V
TSTORE
Storage Temperature (Zero Bias)
-65
150
°C
TSOLDER Soldering Temperature • Time
270•5
°C•s
PD
Total Package Power Dissipation (3)
2.5
W
IOUT
DC or Average Output Current
25
mA
VPROT
ESD Input Protection Voltage (4)
2000
V
ΘJC
Thermal Resistance (Jct-to-Case) 28 FP/36 FP
2
°C/W
28 DIP
10
°C/W
TJ
Junction Temperature
175
°C
(1) Stresses in excess of those listed above may result in permanent damage. These are stress ratings only, and operation at these levels is not
implied. Frequent or extended exposure to absolute maximum conditions may affect device reliability.
(2) Voltage referenced to VSS.
(3) RAM power dissipation (IDDSB + IDDOP) plus RAM output driver power dissipation due to external loading must not exceed this specification.
(4) Class 2 electrostatic discharge (ESD) input protection. Tested per MIL-STD-883, Method 3015 by DESC certified lab.
RECOMMENDED OPERATING CONDITIONS
Symbol
VDD
TA
VPIN
Parameter
Supply Voltage (referenced to VSS)
Ambient Temperature
Voltage on Any Pin (referenced to VSS)
Description
Min
Typ
Max
4.5
5.0
5.5
-55
25
125
-0.3
VDD+0.3
Units
V
°C
V
CAPACITANCE (1)
Symbol
CI
CO
Parameter
Input Capacitance
Output Capacitance
Worst Case
Typical
Max ^Units
4
6
pF
6.5
8
pF
(1) This parameter is tested during initial design characterization only.
Test Conditions
VI=VDD or VSS, f=1 MHz
VIO=VDD or VSS, f=1 MHz
DATA RETENTION CHARACTERISTICS
Symbol
VDR
IDR
Parameter (2)
Data Retention Voltage (3)
Data Retention Current
Typical
(1)
2.0
150
Worst Case
Units
Min Max
2.5
V
400 µA
Test Conditions
NCS=VDR
VI=VDR or VSS
NCS=VDD=VDR
VI=VDR or VSS
(1) Typical operating conditions: TA= 25°C, pre-radiation.
(2) Worst case operating conditions: TA= -55°C to +125°C, post total dose at 25°C.
(3) To maintain valid data storage during transient radiation, VDD must be held within the recommended operating range.
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