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74ABT821 Datasheet, PDF (4/6 Pages) NXP Semiconductors – 10-bit D-type flip-flop; positive-edge trigger 3-State
Philips Semiconductors
10-bit D-type flip-flop; positive-edge trigger
(3-State)
Product specification
74ABT821
DC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
Tamb = +25°C
Tamb = –40°C
to +85°C
UNIT
Min Typ Max Min Max
VIK
Input clamp voltage
VOH High-level output voltage
VOL
VRST
Low-level output voltage
Power-up output low
voltage3
VCC = 4.5V; IIK = –18mA
VCC = 4.5V; IOH = –3mA; VI = VIL or VIH
VCC = 5.0V; IOH = –3mA; VI = VIL or VIH
VCC = 4.5V; IOH = –32mA; VI = VIL or VIH
VCC = 4.5V; IOL = 64mA; VI = VIL or VIH
VCC = 5.5V; IO = 1mA; VI = GND or VCC
–0.9 –1.2
–1.2 V
2.5 2.9
2.5
V
3.0 3.4
3.0
V
2.0 2.4
2.0
V
0.42 0.55
0.55 V
0.13 0.55
0.55 V
II
Input leakage current
VCC = 5.5V; VI = GND or 5.5V
±0.01 ±1.0
±1.0 µA
IOFF Power-off leakage current
VCC = 0.0V; VO or VI ≤ 4.5V
±5.0 ±100
±100 µA
IPU/IPD
Power-up/down 3-State
output current4
VCC = 2.0V; VO = 0.5V; VI = GND or VCC;
V OE = VCC
±5.0 ±50
±50 µA
IOZH 3-State output High current VCC = 5.5V; VO = 2.7V; VI = VIL or VIH
5.0 50
50
µA
IOZL
3-State output Low current
VCC = 5.5V; VO = 0.5V; VI = VIL or VIH
–5.0 –50
–50 µA
ICEX
IO
Output High leakage current
Output current1
VCC = 5.5V; VO = 5.5V; VI = GND or VCC
VCC = 5.5V; VO = 2.5V
5.0 50
50
µA
–50 –100 –180 –50 –180 mA
ICCH
VCC = 5.5V; Outputs High, VI = GND or VCC
0.5 250
250 µA
ICCL Quiescent supply current
VCC = 5.5V; Outputs Low, VI = GND or VCC
25
38
38 mA
ICCZ
VCC = 5.5V; Outputs 3-State;
VI = GND or VCC
0.5 250
250 µA
∆ICC
Additional supply current per VCC = 5.5V; one input at 3.4V,
input pin2
other inputs at VCC or GND
0.5 1.5
1.5 mA
NOTES:
1. Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
2. This is the increase in supply current for each input at 3.4V.
3. For valid test results, data must not be loaded into the flip-flops (or latches) after applying the power.
4. This parameter is valid for any VCC between 0V and 2.1V with a transition time of up to 10msec. For VCC = 2.1V to VCC = 5V " 10%, a
transition time of up to 100µsec is permitted.
AC CHARACTERISTICS
GND = 0V, tR = tF = 2.5ns, CL = 50pF, RL = 500Ω
SYMBOL
PARAMETER
WAVEFORM
fMAX
Maximum clock frequency
1
tPLH
Propagation delay
tPHL
CP to Qn
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
LIMITS
Tamb = +25oC
VCC = +5.0V
Min
Typ
Max
125
185
2.1
4.1
5.6
2.8
4.6
6.2
1.0
3.0
4.5
2.2
4.1
5.6
2.7
4.7
6.2
2.8
4.6
6.1
Tamb = -40 to
+85oC
VCC = +5.0V ±0.5V
Typ
Max
125
2.1
6.2
2.8
6.7
1.0
5.3
2.2
6.3
2.7
6.7
2.8
6.5
UNIT
ns
ns
ns
ns
1995 Sep 06
4