74F413
64 x 4 First-In First-Out Buffer Memory with Parallel I/O
74F413 64 x 4 First-In First-Out Buffer Memory with Parallel I/O
General Description
The F413 is an expandabl e fall-through type high-speed
First-In First-Out (FIFO) buffer memory organized as 64
words by four bits. The 4-bit input and output registers
record and transmit, respectively, asynchronous data in
parallel form. Control pins on the input and ou tput al low f or
handshaking and expa nsion. The 4-bit wide, 62-bit deep
fall-through stack has self-contained control logic.
inputs. To enter data the Input Ready (IR) should be HIGH,
74F413
indicating that the first location is ready to accept data.
Data then present at the four data inputs is entered into the
first location when the Shift In (SI) is broug ht HIGH. An SI
HIGH signal causes the IR to go LOW. Data remains at the
first location unti l SI is brought LOW. When SI is brought
LOW and the FIFO is not full, I R will go HIGH, indicating
that more room is available. Simultaneously, data will propagate to the second location and continue shifting until it
reaches the output stage or a full location. If the memory is
full, IR will remain LOW.
Data Transfer— Once data is entered into the second cell,
the transfer of any full cell to the adjacen t (downstream)
empty cell is automatic, activated by an on-chip control.
Thus data will stack up at the end of the device while empty
locations will “bubble” to the front. The t
parameter
PT
Block Diagram
defines the time requir ed for the first data to travel from
3
input to the output of a previously empty device.
Data Output— Data is read from the O
When data is shifted to the output stage, Output Ready
(OR) goes HIGH, indicating the presence of valid data.
When the OR is HIGH, data may be shifted out by bringing
the Shift Out (SO) HIGH. A HIGH signal at SO causes the
OR to go LOW. Valid data is maintained while the SO is
HIGH. When SO is brought LOW, the upstream da ta, provided that stage has valid data, is shifted to the output
stage. When new val id data is shif ted to the ou tput stage,
OR goes HIGH. If the FIFO is emptied, OR stays LOW, and
remains as before, i.e., data does not change if
O
0–O3
FIFO is empty.
Input Ready and Outpu t Ready— may also be used as
status signals indicating that the FIFO is completely full
(Input Ready stays LOW for at least t
empty (Output Ready stays LOW for at least t
0–O3
) or completely
PT
).
PT
outputs.
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Page 3
Absolute Maximum Ratings(Note 1)Recommended Operating
Storage Temperature−65°C to +150°C
Ambient Temperature under Bias−55°C to +125°C
Junction Temperature under Bias−55°C to +150°C
Pin Potential to Ground Pin−0.5 V to +7.0V
V
CC
Input Voltage (Note 2)−0.5V to +7.0V
Input Current (Note 2)−30 mA to +5.0 mA
Voltage Applied to Output
in HIGH State (with V
CC
= 0V)
Standard Output−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°C to +70°C
Supply Voltage+4.5V to +5.5V
Note 1: Absolute maximum ratings are values beyon d which the device
may be damaged or have its useful life impaired . Functional operation
CC
under these condit ions is not implied.
Note 2: Either voltage limit or curren t limit is sufficient to protect in puts.
(mA)
DC Electrical Characteristics
74F413
SymbolParameterMinTypMaxUnits
V
V
V
V
V
I
I
I
V
I
I
I
I
IH
IL
CD
OH
OL
IH
BVI
CEX
ID
OD
IL
OS
CCH
Input HIGH Voltage2.0VRecognized as a HIGH Signal
Input LOW Voltage0.8VRecognized as a LOW Signal
Input Clamp Diode Voltage−1.5VMinIIN =−18 mA
Output HIGH 10% V
Voltage 5% V
Output LOW Voltage10% V
Input HIGH Current5.0µAMaxVIN = 2.7V
Input HIGH Current
Breakdown Test
Output HIGH Leakage Current50µAMaxV
Input Leakage
TestAll Other Pins Grounded
Output Leakage
Circuit CurrentAll Other Pins Grounded
Input LOW Current−0.4mAMaxVIN = 0.5V
Output Short-Circuit Current−20−130mAMaxV
Power Supply Current115160mAMaxVO = HIGH
CC
CC
CC
2.4
2.7IOH =−1 mA
0.5VMinIOL = 8 mA
7.0µAMaxVIN = 7.0V
4.75V0.0
3.75µA0.0
V
CC
VMin
IOH =−1 mA
IID = 1.9 µA
V
= V
OUT
= 150 mV
IOD
= 0V
OUT
Conditions
CC
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Page 4
AC Electrical Characteristics
74F413
SymbolParameter
f
f
t
t
t
t
t
t
t
t
MAX
MAX
PLH
PHL
PLH
PHL
PLH
PHL
PLH
PLH
Shift In Rate108.010MHz
Shift Out Rate108.010MHz
Propagation Delay1.544.01.550.01.548.0
Shift In to IR1.531.01.537.01.535.0
Propagation Delay1.552.01.557.01.555.0
Shift Out to OR1.531.01.537.01.535.0
Propagation Delay1.546.01.552.01.550.0
Output Data Delay1.534.01.539.01.537.0
Propagation Delay1.527.01.533.01.531.0ns
Master Reset to IR
Propagation Delay1.530.01.534.01.532.0ns
Master Reset to OR
TA =+25°CT
VCC =+5.0VVCC =+5.0VVCC =+5.0V
CL = 50 pFCL = 50 pFCL = 50 pF
MinTypMaxMinMaxMinMax
=−55°C to +125°CTA = 0° to +70°C
A
AC Operating Requirements
TA =+25°CTA =−55°C to +125°CTA = 0° to +70°C
SymbolParameter
tS(H)Setup Time, HIGH or LOW1.01.01.0ns
tS(L)Dn to SI1.01.01.0
tH(H)Hold Time, HIGH or LOW10.010.010.0
tH(L)Dn to SI10.010.010.0
tW(H)Shift In Pulse Width5.05.05.0ns
tW(L)HIGH or LOW10.010.010.0
tW(H)Shift Out Pulse Width7.58.57.5
tW(L)HIGH or LOW10.010.010.0
tW(H)Input Ready Pulse Width,7.58.57.5ns
tW(L)Output Ready Pulse Width,5.05.05.0ns
tW(L)Master Reset Pulse Width,10.010.010.0ns
t
REC
t
PT
HIGH
LOW
LOW
Recovery Time, MR to SI32.035.035.0ns
Data Throughput Time0.91.01.0µs
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent license s 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 devices or systems
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 labe l ing, can be re asonably expected to result in a significant injury to the
user.
Package Number N16E
2. A critical componen t in any com ponen t of a life s upport
device or system whose failu re to perform can b e reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
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