Philips Semiconductors Product specification
74ABT74Dual D-type flip-flop
1995 Sep 22 3
DC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL PARAMETER TEST CONDITIONS Tamb = +25°CTamb = –40°C
to +85°CUNIT
MIN TYP MAX MIN MAX
VIK Input clamp voltage VCC = 4.5V ; IIK = –18mA –0.9 –1.2 –1.2 V
VOH High-level output voltage VCC = 4.5V ; IOH = –15mA; VI = VIL or VIH 2.5 2.9 2.5 V
VOL Low-level output voltage VCC = 4.5V; IOL = 20mA; VI = VIL or VIH 0.35 0.5 0.5 V
IIInput leakage current VCC = 5.5V ; V I = GND or 5.5V ±0.01 ±1.0 ±1.0 µA
IOFF Power-of f leakage current VCC = 0.0V; VO or VI ≤ 4.5V ±5.0 ±100 ±100 µA
ICEX Output High leakage current VCC = 5.5V; VO = 5.5V; VI = GND or VCC 5.0 50 50 µA
IOOutput current1VCC = 5.5V; VO = 2.5V –50 –75 –180 –50 –180 mA
ICC Quiescent supply current VCC = 5.5V ; V I = GND or VCC 250 50 µA
∆ICC Additional supply current per
input pin2VCC = 5.5V ; One data input at 3.4V, other
inputs at VCC or GND 0.25 500 500 µA
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-flop or latch after applying the power.
AC ELECTRICAL CHARACTERISTICS
GND = 0V ; tR = tF = 2.5ns; CL = 50pF, RL = 500Ω
LIMITS
SYMBOL PARAMETER WAVEFORM Tamb = +25°C
VCC = +5.0V Tamb = –40°C to +85°C
VCC = +5.0V ±0.5V UNIT
MIN TYP MAX MIN MAX
fMAX Maximum clock frequency 1 180 250 150 MHz
tPLH
tPHL Propagation delay
CPn to Qn, Qn11.0
1.0 3.0
2.5 4.2
3.5 1.0
1.0 4.7
4.0 ns
tPLH
tPHL Propagation delay
Sn, Rn to Qn, Qn 31.0
1.0 3.4
2.9 4.9
4.5 1.0
1.0 6.2
5.2 ns
tOSHL
tOSLH1Output to Output skew
An or Bn to Yn4 0.5 0.6 0.6 ns
NOTE:
1. Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same
device. The specification applies to any outputs switching in the the same direction, either HIGH–to-LOW (tOSHL) or LOW-to-HIGH (tOSLH);
parameter guaranteed by design.
AC SETUP REQUIREMENTS
GND = 0V ; tR = tF = 2.5ns; CL = 50pF, RL = 500Ω
LIMITS
SYMBOL PARAMETER WAVEFORM Tamb = +25°C
VCC = +5.0V Tamb = –40°C to +85°C
VCC = +5.0V ±0.5V UNIT
MIN TYP MIN
tsu (H)
tsu (L) Setup time, high or low
Dn to CPn 12.6
2.4 1.4
1.4 2.6
2.4 ns
th (H)
th (L) Hold time, high or low
Dn to CPn 10
0–1.4
–1.4 0
0ns
tw (H)
tw (L) CPn pulse width,
high or low 11.7
1.7 1.0
1.0 2.1
2.1 ns
tw (L) SDn, RDn pulse width, low 3 2.0 1.3 2.2 ns
trec Recovery time
SDn, RDn to CPn 2 2.1 1.4 2.4 ns