74AHCT574 PHILIPS [NXP Semiconductors], 74AHCT574 Datasheet - Page 2

• Manufacturer Part Number: 74AHCT574
• Description: Octal D-type flip-flop; positive edge-trigger; 3-state
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
FEATURES
QUICK REFERENCE DATA
GND = 0 V; T
Notes
1. C
2. The condition is V
1999 Jun 16
t
f
C
C
C
PHL
max
3-state non-inverting outputs for
bus oriented applications
8-bit positive, edge-triggered
register
ESD protection:
HBM EIA/JESD22-A114-A
exceeds 2000 V
MM EIA/JESD22-A115-A
exceeds 200 V
Independent register and 3-state
buffer operation
Common 3-state output enable
input
Output capability; bus driver
I
For AHC only:
operates with CMOS input levels
For AHCT only:
operates with TTL input levels
Specified from
I
O
PD
Octal D-type flip-flop; positive edge-trigger; 3-state
CC
40 to +85 and +125 C.
P
f
f
C
V
i
o
/t
SYMBOL
D
CC
PD
= input frequency in MHz;
L
category: MSI
PLH
= output frequency in MHz;
(C
= output load capacitance in pF;
= C
= supply voltage in Volts.
is used to determine the dynamic power dissipation (P
L
PD
V
amb
CC
V
2
CC
= 25 C; t
f
2
o
propagation delay
CP to Q
maximum clock frequency
input capacitance
output capacitance
power dissipation
capacitance
) = sum of outputs;
I
f
= GND to V
i
+
r
PARAMETER
= t
n
(C
f
L
3.0 ns.
CC
V
CC
.
2
DESCRIPTION
The 74AHC/AHCT574 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/AHCT574 are octal D-type flip-flops featuring separate D-type
inputs for each flip-flop and 3-state outputs for bus oriented applications.
A clock (CP) and an output enable (OE) input are common to all flip-flops.
The 8 flip-flops will store the state of their individual D-inputs that meet the
set-up and hold times requirements on the LOW-to-HIGH CP transition.
When OE is LOW the contents of the 8 flip-flops are available at the outputs.
When OE is HIGH, the outputs go to the high-impedance OFF-state. Operation
of the OE input does not affect the state of the flip-flops.
The ‘574’ is functionally identical to the ‘564’, but has non-inverting outputs.
The ‘574’ is functionally identical to the ‘374’, but has a different pinning.
f
o
) where:
C
C
V
C
notes 1 and 2
I
L
L
L
= V
= 15 pF; V
= 15 pF; V
= 50 pF; f = 1 MHz;
CC
CONDITIONS
2
or GND
D
CC
CC
in W).
= 5 V
= 5 V
4.4
130
4.0
4.0
10
AHC
TYPICAL
4.4
130
4.0
4.0
12
Product specification
AHCT
74AHCT574
74AHC574;
ns
MHz
pF
pF
pF
UNIT