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74F2244PC

P1-P3P4-P6
October 1988
Revised March 1999
74F2244 Octal Buffer/Line Driver with 25Ω Series Resistors in Outputs
© 1999 Fairchild Semiconductor Corporation DS009499.prf www.fairchildsemi.com
74F2244
Octal Buffer/Line Driver
with 25Ω Series Resistors in Outputs
General Description
The F2244 is an octal buffer/line driver designed to drive
the capacitive inputs of MOS memory drivers, address driv-
ers, clock drivers and bus-oriented transmitters/receivers.
The 25Ω series resistors in the outputs reduce ringing and
eliminate the need for external resistors.
Features
■ 3-STATE outputs drive bus lines or buffer memory
address registers
■ 12 mA source current
■ 25Ω series resistors in outputs eliminate the need for
external resistors.
■ Designed to drive the capacitive inputs of MOS devices
■ Guaranteed 4000V minimum ESD protection
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram Logic Symbol
IEEE/IEC
Order Number Package Number Package Description
74F2244SC M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
74F2244MSA MSA20 20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide
74F2244PC N20A 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
www.fairchildsemi.com 2
74F2244
Unit Loading/Fan Out
Note 1: Worst-case F2244 disabled
Truth Table
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
Pin Names Description
U.L. Input I
IH
/I
IL
HIGH/LOW Output I
OH
/I
OL
OE
1
, OE
2
3-STATE Output Enable Input (Active LOW) 1.0/1.667 20 µA/−1 mA
OE
2
3-STATE Output Enable Input (Active HIGH) 1.0/1.667 20 µA/−1 mA
I
an
, I
bn
Inputs 1.0/2.667 (Note 1) 20 µA/−1.6 mA
O
an
,O
bn
Outputs 750/20 −15 mA/12 mA
OE
1
I
an
O
an
OE
2
I
bn
O
bn
HXZHXZ
LHHLHH
LLLLLL
3 www.fairchildsemi.com
74F2244
Absolute Maximum Ratings(Note 2) Recommended Operating
Conditions
Note 2: Absolute maximum ratings are values beyond which the device
may be damaged or have its useful life impaired. Functional operation
under these conditions is not implied.
Note 3: Either voltage limit or current limit is sufficient to protect inputs.
DC Electrical Characteristics
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
V
CC
Pin Potential to Ground Pin −0.5V to +7.0V
Input Voltage (Note 3) −0.5V to +7.0V
Input Current (Note 3) −30 mA to +5.0 mA
Voltage Applied to Output
in HIGH State (with V
CC
= 0V)
Standard Output −0.5V to V
CC
3-STATE Output −0.5V to +5.5V
Current Applied to Output
in LOW State (Max) twice the rated I
OL
(mA)
ESD Last Passing Voltage (Min) 4000V
Free Air Ambient Temperature 0°C to +70°C
Supply Voltage +4.5V to +5.5V
Symbol Parameter Min Typ Max Units
V
CC
Conditions
V
IH
Input HIGH Voltage 2.0 V Recognized as a HIGH Signal
V
IL
Input LOW Voltage 0.8 V Recognized as a LOW Signal
V
CD
Input Clamp Diode Voltage −1.2 V Min I
IN
= −18 mA
V
OH
Output HIGH Voltage 10% V
CC
2.4 V Min I
OH
= −3 mA
10% V
CC
2.0 I
OH
= −15 mA
5% V
CC
2.7 I
OH
= −3 mA
V
OL
Output LOW Voltage 0.50 V Min I
OL
= 1 mA
0.75 I
OL
= 12 mA
I
IH
Input HIGH Current 5.0 µAMaxV
IN
= 2.7V
I
BVI
Input HIGH Current Breakdown Test 7.0 µAMaxV
IN
= 7.0V
I
CEX
Output HIGH Leakage Current 50 µAMaxV
OUT
= V
CC
V
ID
Input Leakage 4.75 V 0.0 I
ID
= 1.9 µA
Test All other pins grounded
I
OD
Output Leakage 3.75 µA0.0V
IOD
= 150 mV
Circuit Current All other pins grounded
I
IL
Input LOW Current −1.0 mA Max V
IN
= 0.5V (OE
1
, OE
2
, OE
2
)
−1.6 V
IN
= 0.5V (I
n
)
I
OZH
Output Leakage Current 50 µAMaxV
OUT
= 2.7V
I
OZL
Output Leakage Current −50 µAMaxV
OUT
= 0.5V
I
OS
Output Short-Circuit Current −100 −225 mA Max V
OUT
= 0V
I
CCH
Power Supply Current 40 60 mA Max V
O
= HIGH
I
CCL
Power Supply Current 60 90 mA Max V
O
= LOW
I
CCZ
Power Supply Current 60 90 mA Max V
O
= HIGH Z
P1-P3P4-P6

74F2244PC

Mfr. #:
Buy 74F2244PC
Manufacturer:
ON Semiconductor / Fairchild
Description:
Buffers & Line Drivers Octal Buf/Line Drv
Lifecycle:
New from this manufacturer.
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