74LCX74_08 Datasheet, PDF (4/13 Pages) Fairchild Semiconductor – 74LCX74 Low Voltage Dual D-Type Positive Edge-Triggered Flip-Flop with 5V Tolerant Inputs

DC Electrical Characteristics
Symbol
Parameter
V_IH HIGH Level Input Voltage
V_IL LOW Level Input Voltage
V_OH HIGH Level Output Voltage
V_OL LOW Level Output Voltage
I_I
Input Leakage Current
I_OFF Power-Off Leakage Current
I_CC Quiescent Supply Current
∆I_CC Increase in I_CC per Input
V_CC (V)
2.3–2.7
2.7–3.6
2.3–2.7
2.7–3.6
2.3–3.6
2.3
2.7
3.0
2.3–3.6
2.3
2.7
3.0
2.3–3.6
0
2.3–3.6
2.3–3.6
Conditions
I_OH = –100µA
I_OH = –8mA
I_OH = –12mA
I_OH = –18mA
I_OH = –24mA
I_OL = 100µA
I_OL = 8mA
I_OL = 12mA
I_OL = 16mA
I_OL = 24mA
0 ≤ V_I ≤ 5.5V
V_I or V_O = 5.5V
V_I = V_CC or GND
3.6V ≤ V_I ≤ 5.5V
V_IH = V_CC – 0.6V
T_A = –40°C to +85°C
Min.
Max.
1.7
2.0
0.7
0.8
V_CC – 0.2
1.8
2.2
2.4
2.2
0.2
0.6
0.4
0.4
0.55
±5.0
10
10
±10
500
Units
V
V
V
V
µA
µA
µA
µA
AC Electrical Characteristics
Symbol
Parameter
T_A = –40°C to +85°C, R_L = 500Ω
V_CC = 3.3V ± 0.3V, V_CC = 2.7V, V_CC = 2.5V ± 0.2V,
C_L = 50pF
C_L = 50pF
C_L = 30pF
Min.
Max. Min. Max. Min.
Max.
Units
f_MAX
Maximum Clock Frequency
150
t_PHL, t_PLH Propagation Delay,
1.5
CP_n to Q_n or Q_n
t_PHL, t_PLH Propagation Delay,
1.5
C_Dn or S_Dn to Q_n or Q_n
t_S
Setup Time
2.5
t_H
Hold Time
1.5
t_W
Pulse Width CP
3.3
t_W
Pulse Width and C_D, S_D
3.3
t_REC
Recovery Time
2.5
t_OSHL, t_OSLH Output to Output Skew⁽⁴⁾
150
150
7.0
1.5 8.0
1.5
7.0
1.5 8.0
1.5
2.5
4.0
1.5
2.0
3.3
4.0
3.6
4.0
3.0
4.5
1.0
MHz
8.4
ns
8.4
ns
ns
ns
ns
ns
ns
ns
Note:
4. 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 same direction, either
HIGH-to-LOW (t_OSHL) or LOW-to-HIGH (t_OSLH).
©1995 Fairchild Semiconductor Corporation
74LCX74 Rev. 1.7.0
4
www.fairchildsemi.com