PI74LPT16373
3.3V 16-Bit Transparent Latch
Power Supply Characteristics
(1)
(2)
Parameters
Description
Min.
Max.
Units
Test Conditions
Typ
Quiescent Power Supply
Current
V
= GND or
IN
VCC
I
V
= Max.
0.1
10
CC
CC
µA
Quiescent Power Supply
Current TTL Inputs HIGH
V
IN
= V
CC
(3)
∆I
V
V
= Max.
= Max.,
500
75
CC
CC
– 0.6V
CC
Outputs Open
XOE = GND
xLE = Vcc
V
V
= V
µA/
MHz
IN
CC
(4)
I
50
Dynamic Power Supply
CCD
= GND
IN
One Bit Toggling
50% Duty Cycle
V
= Max.,
CC
V
– 0.6V
= V
CC
IN
Outputs Open
fI = 10 MHZ
50% Duty Cycle
XOE = GND
0.6
V
IN
= GND
XLE =
2.3
V
CC
One Bit Toggling
Total Power Supply
Current
I
C
mA
(6)
V
CC
= Max.,
V
= V
IN
CC
Outputs Open
fI = 2.5 MHZ
50% Duty Cycle
XOE = GND
– 0.6V
= GND
2.1
XLE =
(5)
V
IN
4.7
V
CC
16 Bits Toggling
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at V = 3.3V, +25°C ambient.
CC
3. Per TTL driven input; all other inputs at Vcc or GND.
4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations.
5. Values for these conditions are examples of the Icc formula. These limits are guaranteed but not tested.
6. I =IQUIESCENT + IINPUTS + IDYNAMIC
C
I = I + ΔI D N + I
(fCP/2 + fINI)
C
CC
CC
H
T
CCD
I
= Quiescent Current (I
, I
and I
)
CC
CCL CCH
CCZ
ΔI = Power Supply Current for a TTL High Input
CC
D
= Duty Cycle for TTL Inputs High
H
N = Number of TTL Inputs at DH
T
I
= Dynamic Current Caused by an Input Transition Pair (HLH or LHL)
CCD
fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices)
= Number of Clock Inputs at fCP
N
CP
fI = Input Frequency
N = Number of Inputs at fI
I
All currents are in milliamps and all frequencies are in megahertz.
PS2069C
10/05/04
4
PERKINELMER [ PERKINELMER OPTOELECTRONICS ]
