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74ALS273N 반도체 회로 부품 판매점

Octal D-type flip-flop



NXP Semiconductors 로고
NXP Semiconductors
74ALS273N 데이터시트, 핀배열, 회로
INTEGRATED CIRCUITS
74ALS273
Octal D–type flip–flop
Product specification
IC05 Data Handbook
Philips
Semiconductors
1991 Feb 08


74ALS273N 데이터시트, 핀배열, 회로
Philips Semiconductors
Octal D-type flip-flop
Product specification
74ALS273
FEATURES
Eight edge-triggered D-type flip-flops
Buffered common clock
Buffered asynchronous master reset
See 74ALS377 for clock enable version
See 74ALS373 for transparent latch version
See 74ALS374 for 3-State version
DESCRIPTION
The 74ALS273 has eight edge-triggered D-type flip-flops with
individual D inputs and Q outputs. The common buffered clock (CP)
and master reset (MR) inputs load and reset all flip-flops
simultaneously.
The register is fully edge-triggered. The state of each D input, one
setup time before the Low-to-High clock transition, is transferred to
the corresponding flip-flop’s Q output.
All outputs will be forced Low independently of clock or data inputs
by a Low voltage level on the MR input.
The device is useful for applications where the true output only is
required and the CP and MR are common to all flip-flops.
TYPE
74ALS273
TYPICAL fMAX
95MHz
TYPICAL
SUPPLY CURRENT
(TOTAL)
16mA
PIN CONFIGURATION
MR 1
Q0 2
D0 3
D1 4
Q1 5
Q2 6
D2 7
D3 8
Q3 9
GND 10
20 VCC
19 Q7
18 D7
17 D6
16 Q6
15 Q5
14 D5
13 D4
12 Q4
11 CP
SF00346
ORDERING INFORMATION
ORDER CODE
DESCRIPTION
COMMERCIAL RANGE
VCC = 5V ±10%,
Tamb = 0°C to +70°C
20-pin plastic DIP
74ALS273N
20-pin plastic SO
74ALS273D
20-pin plastic SSOP
Type II
74ALS273DB
DRAWING
NUMBER
SOT146-1
SOT163-1
SOT339-1
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS
DESCRIPTION
74ALS (U.L.)
HIGH/LOW
D0 – D7
Data inputs
1.0/2.0
CP Clock pulse input (active rising edge)
1.0/1.0
MR Master Reset input (active-Low)
1.0/1.0
Q0 – Q7
3-State outputs
130/240
NOTE: One (1.0) ALS unit load is defined as: 20µA in the High state and 0.1mA in the Low state.
LOGIC SYMBOL
IEC/IEEE SYMBOL
3 4 7 8 13 14 17 18
D0 D1 D2 D3 D4 D5 D6 D7
11 CP
1 MR
Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7
VCC = Pin 20
GND = Pin 10
2 5 6 9 12 15 16 19
SF00347
1R
11
C1
3 1D
4
7
8
13
14
17
18
LOAD VALUE
HIGH/LOW
20µA/0.2mA
20µA/0.1mA
20µA/0.1mA
2.6mA/24mA
2
5
6
9
12
15
16
19
SF00348
1991 Feb 08
2 853–1398 01670




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74ALS273N flip-flop

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