74F219
64-Bit Random Access Memory with 3-STATE Outputs
74F219 64-Bit Random Access Memory with 3-STATE Outputs
General Description
The 74F219 is a high-speed 64-bit RAM organized as a 16word by 4-bit array. Address inputs are buffered to minimize loading and are fu lly decoded on-chip. The outputs
are 3-STATE and are i n the high-impedance sta te whenever the Chip Sele ct (CS
active only in the Read mode. This device is sim ilar to the
74F189 but features non-inverting, rather than inverting,
data outputs.
) input is HIGH. The outputs are
Features
■ 3-STATE outputs for data bus applications
■ Buffered inputs minimize loading
■ Address decoding on-chip
■ Diode clamped inputs minimize ringing
■ Available in SOIC (300 mil only)
Ordering Code:
Order Number Package NumberPackage Description
74F219SC M16B16-Lead Small Outline Intergrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
74F219SJ M16D16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74F219PCN16E16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also availab le in Tape and Reel. Specify by appending the suffix letter “X” to the o rdering code.
LLWriteHigh Impedance
LHReadTrue Stored Data
HXInhibitHigh Impedance
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Block Diagram
U.L.
HIGH/LOW
Address Inputs1.0/1.020 µA/−0.6 mA
Chip Select Input (Active LOW)1.0/2.020 µA/−1.2 mA
Write Enable Input (Active LOW)1.0/1.020 µA/−0.6 mA
Data Inputs1.0/1.020 µA/−0.6 mA
3-STATE Data Outputs150/40 (33.3)−3 mA/24 mA (20 mA)
Inputs
WE
OperationCondition of Outputs
Input I
Output I
IH/IIL
OH/IOL
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Page 3
Absolute Maximum Ratings(Note 1)Recommended Operating
Storage Temperature−65°C to +150°C
Ambient Temperature under Bias
Junction Temperature under Bias
Pin Potential to Ground Pin−0.5V to +7.0V
V
CC
Input Voltage (Note 2)
Input Current (Note 2)
−55°C to +125°C
−55°C to +150°C
−0.5V to +7.0V
−30 mA to +5.0 mA
Voltage Applied to Output
in HIGH State (with V
Standard Output
CC
= 0V)
−0.5V to V
3-STATE Output−0.5V to +5.5V
Current Applied to Output
in LOW State (Max)twice the rated I
OL
Conditions
Free Air Ambient Temperature0
Supply Voltage
Note 1: Absolute maximum ratings are values beyond which the device
may be damaged or have its useful life impaired . Functional operation
CC
under these conditions is not implied.
Note 2: Either voltage lim it or c urrent limit is sufficient to protect inputs.
(mA)
DC Electrical Characteristics
SymbolParameter
V
V
V
V
V
I
IH
I
BVI
I
CEX
V
I
OD
I
IL
I
OZH
I
OZL
I
OS
I
ZZ
I
CC
IH
IL
CD
OH
OL
ID
Input HIGH Voltage2.0VRecognized as a HIGH Signal
Input LOW Voltage0.8VRecognized as a LOW Signal
Input Clamp Diode Voltage−1.2VMinIIN =−18 mA
Output HIGH10% V
Voltage10% V
Output LOW10% V
Voltage
Input HIGH
Current
Input HIGH Current
Breakdown Test
Output HIGH
Leakage Current
Input Leakage
TestAll Other Pins Grounded
Output Leakage
Circuit CurrentAll Other Pins Grounded
Fairchild does not assume any responsibility for use of any circuitry described , no circuit patent licenses are implied and
Fairchild reserves the right at any time without notice to change said circuitry and specifications.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD
SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are dev ic es or syste ms
which, (a) are intended for surgical implant into the
body, or (b) support or sustain life, and (c) whose failure
to perform when properly used in accordance with
instructions for use provide d in the l abe ling, can be reasonably expected to result in a significant injury to the
user.
Package Number N16E
2. A critical compo nent in any com ponen t of a life s upp ort
device or system whose failure to perform can be reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
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