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74F1241 반도체 회로 부품 판매점

Octal inverter buffer 3-State



NXP Semiconductors 로고
NXP Semiconductors
74F1241 데이터시트, 핀배열, 회로
INTEGRATED CIRCUITS
74F1240
Octal inverter buffer (3-State)
74F1241
Octal buffer (3-State)*
* Discontinued part. Please see the Discontinued Product List.
Product specification
Supercedes data of 1989 Apr 04
IC15 Data Handbook
1999 Jan 08
Philips
Semiconductors


74F1241 데이터시트, 핀배열, 회로
Philips Semiconductors
Buffers
Product specification
74F1240, 74F1241*
74F1240 Octal inverter buffer (3-State)
FEATURES
High impedance NPN base inputs for reduced loading
(20µA in High and Low states)
Low power, light loading
Functional pin-for-pin equivalent of 74F240 and 74F241
1/30th the bus loading of 74F240 and 74F241
Provides ideal interface and increase fan-out of MOS
microprocessors
Octal bus interface
3-State buffer outputs sink 64mA
15mA source current
TYPE
74F1240
74F1241
TYPICAL
PROPAGATION
DELAY
3.5ns
4.5ns
TYPICAL
SUPPLY CURRENT
(TOTAL)
40mA
46mA
ORDERING INFORMATION
DESCRIPTION
20-pin plastic DIP
COMMERCIAL RANGE
VCC = 5V ±10%,
Tamb = 0°C to +70°C
N74F1240N
20-pin plastic SOL
N74F1240D
DRAWING
NUMBER
SOT146-1
SOT163-1
DESCRIPTION
The 74F1240 and 74F1241 are octal buffers that are ideal for driving
bus lines or buffer memory address registers. The outputs are
capable of sinking 64mA and sourcing up to 15mA, producing very
good capacitive drive characteristics. The device features two
Output Enables, OEa and OEb, each controlling four of the 3-State
outputs.
INPUT AND OUTPUT LOADING AND FAN OUT TABLE
PINS
DESCRIPTION
74F (U.L.)
HIGH/LOW
Ian, Ibn
Data inputs
1.0/0.033
OEa, OEb
Output enable inputs (active Low)
1.0/0.033
OEb
Output enable input (active High, 74F1241)
1.0/0.033
Yan, Ybn
Data outputs (74F1241)
750/106.7
Yan, Ybn
Data outputs (74F1240)
750/106.7
NOTE: One (1.0) FAST unit load is defined as: 20µA in the High state and 0.6mA in the Low state.
LOAD VALUE
HIGH/LOW
20µA/20µA
20µA/20µA
20µA/20µA
15mA/64mA
15mA/64mA
* Discontinued part. Please see the Discontinued Products List.
1999 Jan 08
2
853–0039 20619




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74F1241 buffer

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