Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

74AHC74 Datasheet(PDF) 2 Page - NXP Semiconductors

Part No. 74AHC74
Description  Dual D-type flip-flop with set and reset; positive-edge trigger
Download  20 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

74AHC74 Datasheet(HTML) 2 Page - NXP Semiconductors

  74AHC74 Datasheet HTML 1Page - NXP Semiconductors 74AHC74 Datasheet HTML 2Page - NXP Semiconductors 74AHC74 Datasheet HTML 3Page - NXP Semiconductors 74AHC74 Datasheet HTML 4Page - NXP Semiconductors 74AHC74 Datasheet HTML 5Page - NXP Semiconductors 74AHC74 Datasheet HTML 6Page - NXP Semiconductors 74AHC74 Datasheet HTML 7Page - NXP Semiconductors 74AHC74 Datasheet HTML 8Page - NXP Semiconductors 74AHC74 Datasheet HTML 9Page - NXP Semiconductors Next Button
Zoom Inzoom in Zoom Outzoom out
 2 / 20 page
background image
1999 Sep 23
2
Philips Semiconductors
Product specification
Dual D-type flip-flop with set and reset;
positive-edge trigger
74AHC74; 74AHCT74
FEATURES
• ESD protection:
HBM EIA/JESD22-A114-A
exceeds 2000 V
MM EIA/JESD22-A115-A
exceeds 200 V
• Balanced propagation delays
• Inputs accepts voltages higher than
VCC
• For AHC only:
operates with CMOS input levels
• For AHCT only:
operates with TTL input levels
• Output capability: standard
• ICC category: flip-flops
• Specified from
−40 to +85 and +125 °C.
DESCRIPTION
The 74AHC/AHCT74 are high-speed
Si-gate CMOS devices and are pin
compatible with low power Schottky
TTL (LSTTL). They are specified in
compliance with JEDEC standard
No. 7A.
The 74AHC/AHCT74 dual
positive-edge triggered, D-type
flip-flops with individual data (D)
inputs, clock (CP) inputs, set (SD) and
reset (RD) inputs; also
complementary Q and Q outputs.
The set and reset are asynchronous
active LOW inputs and operate
independently of the clock input.
Information on the data input is
transferred to the Q output on the
LOW-to-HIGH transition of the clock
pulse. The D inputs must be stable
one set-up time prior to the
LOW-to-HIGH clock transition for
predictable operation.
Schmitt-trigger action in the clock
input makes the circuit highly tolerant
to slower clock rise and fall times.
QUICK REFERENCE DATA
GND = 0 V; Tamb =25 °C; tr =tf ≤ 3.0 ns.
Notes
1. CPD is used to determine the dynamic power dissipation (PD in µW).
PD =CPD × VCC2 × fi + ∑ (CL × VCC2 × fo) where:
fi = input frequency in MHz; fo = output frequency in MHz;
∑ (CL × VCC2 × fo) = sum of outputs;
CL = output load capacitance in pF;
VCC = supply voltage in Volts.
2. The condition is VI = GND to VCC.
FUNCTION TABLES
Table 1
See note 1
Table 2
See note 1
Note to Tables 1 and 2
1. H = HIGH voltage level;
L = LOW voltage level;
X = don’t care;
↑ = LOW-to-HIGH CP transition;
Qn+1 = state after the next LOW-to-HIGH CP transition.
SYMBOL
PARAMETER
CONDITIONS
TYPICAL
UNIT
AHC
AHCT
tPHL/tPLH
propagation delay
CL = 15 pF;
VCC =5V
nCP to nQ, nQ
3.7
3.3
ns
nSD,nRD to nQ, nQ
3.7
3.7
ns
fmax
max. clock frequency
130
100
MHz
CI
input capacitance
VI =VCC or GND 4.0
4.0
pF
CPD
power dissipation
capacitance
CL = 50 pF;
f = 1 MHz;
notes 1 and 2
12
16
pF
INPUT
OUTPUT
nSD
nRD
nCP
nD
nQ
nQ
LH
X
X
HL
HL
X
X
LH
LL
X
X
H
H
INPUT
OUTPUT
nSD
nRD
nCP
nD
nQn+1
nQn+1
HH
LL
H
HH
HH
L


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20 


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn