74ABT74 Datasheet, PDF (3/5 Pages) NXP Semiconductors – Dual D-type flip-flop

Philips Semiconductors
Dual D-type flip-flop
Product specification
74ABT74
DC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
T_amb = +25°C
MIN TYP MAX
T_amb = –40°C
to +85°C
MIN MAX
V_IK
Input clamp voltage
V_CC = 4.5V; I_IK = –18mA
–0.9 –1.2
–1.2
V_OH High-level output voltage
V_CC = 4.5V; I_OH = –15mA; V_I = V_IL or V_IH
2.5 2.9
2.5
V_OL Low-level output voltage
V_CC = 4.5V; I_OL = 20mA; V_I = V_IL or V_IH
0.35 0.5
0.5
I_I
Input leakage current
V_CC = 5.5V; V_I = GND or 5.5V
±0.01 ±1.0
±1.0
I_OFF Power-off leakage current
V_CC = 0.0V; V_O or V_I ≤ 4.5V
±5.0 ±100
±100
I_CEX
I_O
Output High leakage current V_CC = 5.5V; V_O = 5.5V; V_I = GND or V_CC
Output current¹
V_CC = 5.5V; V_O = 2.5V
5.0 50
50
–50 –75 –180 –50 –180
I_CC
Quiescent supply current
V_CC = 5.5V; V_I = GND or V_CC
2
50
50
∆I_CC
Additional supply current per V_CC = 5.5V; One data input at 3.4V, other
input pin²
inputs at V_CC or GND
0.25 500
500
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.
UNIT
V
V
V
µA
µA
µA
mA
µA
µA
AC ELECTRICAL CHARACTERISTICS
GND = 0V; t_R = t_F = 2.5ns; C_L = 50pF, R_L = 500Ω
LIMITS
SYMBOL
PARAMETER
WAVEFORM
T_amb = +25°C
V_CC = +5.0V
MIN
TYP
MAX
T_amb = –40°C to +85°C
V_CC = +5.0V ±0.5V
MIN
MAX
UNIT
f_MAX
Maximum clock frequency
1
180
250
150
MHz
t_PLH
Propagation delay
t_PHL
CPn to Qn, Qn
1
1.0
3.0
4.2
1.0
1.0
2.5
3.5
1.0
4.7
4.0
ns
t_PLH
Propagation delay
t_PHL
Sn, Rn to Qn, Qn
3
1.0
3.4
4.9
1.0
1.0
2.9
4.5
1.0
6.2
5.2
ns
t_OSHL
t_OSLH1
Output to Output skew
An or Bn to Yn
4
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 (t_OSHL) or LOW-to-HIGH (t_OSLH);
parameter guaranteed by design.
AC SETUP REQUIREMENTS
GND = 0V; t_R = t_F = 2.5ns; C_L = 50pF, R_L = 500Ω
SYMBOL
PARAMETER
t_su (H)
t_su (L)
t_h (H)
t_h (L)
t_w (H)
t_w (L)
t_w (L)
t_rec
Setup time, high or low
Dn to CPn
Hold time, high or low
Dn to CPn
CPn pulse width,
high or low
SDn, RDn pulse width, low
Recovery time
SDn, RDn to CPn
WAVEFORM
1
1
1
3
2
T_amb = +25°C
V_CC = +5.0V
MIN
TYP
2.6
1.4
2.4
1.4
0
–1.4
0
–1.4
1.7
1.0
1.7
1.0
2.0
1.3
LIMITS
T_amb = –40°C to +85°C
V_CC = +5.0V ±0.5V
MIN
2.6
2.4
0
0
2.1
2.1
2.2
2.1
1.4
2.4
UNIT
ns
ns
ns
ns
ns
1995 Sep 22
3