74F273AN 반도체 회로 부품 판매점

Octal D flip-flop



Philips 로고
Philips
74F273AN 데이터시트, 핀배열, 회로
INTEGRATED CIRCUITS
74F273A
Octal D flip-flop
Product specification
IC15 Data Handbook
Philips
Semiconductors
1996 Mar 12

74F273AN 데이터시트, 핀배열, 회로
Philips Semiconductors
Octal D flip–flop
Product specification
74F273A
FEATURES
High impedance inputs for reduced loading
(20µA in Low and High states)
Ideal buffer for MOS microprocessor or memory
Eight edge–triggered D–type flip–flops
Buffered common clock
Buffered asynchronous Master Reset
See 74F377A for clock enable version
See 74F373 for transparent latch version
See 74F374 for 3–State version
DESCRIPTION
The 74F273 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 (clear) 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 elements.
TYPE
74F273A
TYPICAL
fMAX
170MHz
TYPICAL SUPPLY CURRENT
(TOTAL)
25mA
ORDERING INFORMATION
PACKAGES
COMMERCIAL RANGE
VCC = 5V±10%;
Tamb = 0°C to +70°C
PKG. DWG. #
20–pin plastic DIP
74F273AN
SOT146-1
20–pin plastic SOL
74F273AD
SOT163-1
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS
DESCRIPTION
D0 – D7
MR
CP
Q0 – Q7
Data inputs
Master Reset input (active–Low)
Clock pulse input (active rising edge)
Data outputs
74F(U.L.)
HIGH/LOW
1.0/0.033
1.0/0.033
1.0/0.033
50/33
LOAD VALUE
HIGH/LOW
20µA/20µA
20µA/20µA
20µA/20µA
1.0mA/20mA
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
LOGIC 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
1996 Mar 12
2 853–0066 16555




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74F273AN flip-flop

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