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74ALVT162821 Datasheet, PDF (6/12 Pages) NXP Semiconductors – 2.5V/3.3V 20-bit bus-interface D-type flip-flop; positive-edge trigger with 30ohm termination resistors 3-State | |||
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Philips Semiconductors
2.5V/3.3V 20-bit bus-interface D-type flip-flop;
positive-edge trigger with 30W termination resistors (3-State)
Product specification
74ALVT162821
DC ELECTRICAL CHARACTERISTICS (3.3V "0.3V RANGE)
LIMITS
MIN TYP1 MAX
VIK
Input clamp voltage
VCC = 3.0V; IIK = â18mA
â0.85 â1.2
V
VOH
High-level output voltage
VCC = 3.0 to 3.6V; IOH = â100µA
VCC = 3.0V; IOH = â32mA
VCCâ0.2 VCC
V
2.0
2.3
VCC = 3.0V; IOL = 100µA
0.07 0.2
VOL
Lowâlevel output voltage
VCC = 3.0V; IOL = 16mA
VCC = 3.0V; IOL = 32mA
0.25 0.4
V
0.3 0.5
VCC = 3.0V; IOL = 64mA
0.4 0.55
VRST Power-up output low voltage6 VCC = 3.6V; IO = 1mA; VI = VCC or GND
0.55
V
VCC = 3.6V; VI = VCC or GND
Control pins
0.1
±1
II
Input leakage current
VCC = 0 or 3.6V; VI = 5.5V
VCC = 3.6V; VI = VCC
VCC = 3.6V; VI = 0V
Data pins4
0.1
10
µA
0.5
1
0.1
-5
IOFF
Off current
VCC = 0V; VI or VO = 0 to 4.5V
0.1 ±100 µA
IHOLD
Bus Hold current
Data inputs7
VCC = 3V; VI = 0.8V
VCC = 3V; VI = 2.0V
VCC = 0V to 3.6V; VCC = 3.6V
75
130
â75 â140
µA
±500
IEX
Current into an output in the
High state when VO > VCC
VO = 5.5V; VCC = 3.0V
10
125
µA
IPU/PD
Power up/down 3-State output VCC ⤠1.2V; VO = 0.5V to VCC; VI = GND or VCC
current3
OE/OE = Donât care
1
±100 µA
IOZH 3-State output High current
VCC = 3.6V; VO = 3.0V; VI = VIL or VIH
0.5
5
µA
IOZL
3-State output Low current
VCC = 3.6V; VO = 0.5V; VI = VIL or VIH
0.5
â5
µA
ICCH
VCC = 3.6V; Outputs High, VI = GND or VCC, IO = 0
0.07 0.1
ICCL
ICCZ
Quiescent supply current
VCC = 3.6V; Outputs Low, VI = GND or VCC, IO = 0
VCC = 3.6V; Outputs Disabled; VI = GND or VCC, IO = 05
5.1
7
mA
0.07 0.1
âICC
Additional supply current per
input pin2
VCC = 3V to 3.6V; One input at VCCâ0.6V,
Other inputs at VCC or GND
0.04 0.4 mA
NOTES:
1. All typical values are at VCC = 3.3V and Tamb = 25°C.
2. This is the increase in supply current for each input at the specified voltage level other than VCC or GND
3. This parameter is valid for any VCC between 0V and 1.2V with a transition time of up to 10msec. From VCC = 1.2V to VCC = 3.3V ± 0.2V a
transition time of 100µsec is permitted. This parameter is valid for Tamb = 25°C only.
4. Unused pins at VCC or GND.
5. ICCZ is measured with outputs pulled up to VCC or pulled down to ground.
6. For valid test results, data must not be loaded into the flip-flops (or latches) after applying power.
7. This is the bus hold overdrive current required to force the input to the opposite logic state.
AC CHARACTERISTICS (3.3V "0.3V RANGE)
GND = 0V; tR = tF = 2.5ns; CL = 50pF; RL = 500â¦; Tamb = â40°C to +85°C.
SYMBOL
PARAMETER
WAVEFORM
fMAX
Maximum clock frequency
1
tPLH
Propagation delay
tPHL
nCP to nQx
1
tPZH
Output enable time
3
tPZL
to High and Low level
4
tPHZ
Output disable time
3
tPLZ
from High and Low level
4
NOTE:
1. All typical values are at VCC = 3.3V and Tamb = 25°C.
LIMITS
Tamb = â40 to +85oC
VCC = +3.3V
MIN
TYP
MAX
150
1.0
3.2
5.0
1.0
3.2
4.7
1.0
3.4
5.6
0.5
2.3
3.7
1.5
3.7
5.4
1.5
3.0
4.3
UNIT
MHz
ns
ns
ns
1998 Oct 02
6
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