HD74BC574A Datasheet, PDF (6/10 Pages) Hitachi Semiconductor – Octal D Type Flip Flops With 3 State Outputs

HD74BC574A
Switching Test Method (C_L = 50 pF)
Item
Symbol
Ta = 25°C
V_CC = 5.0 V
Min
Max
Propagation
CK → Q
delay time
Output enable time
Output disable time
Setup time
Hold time
Pulse width
Input capacitance
Output capacitance
t _PLH
t _PHL
t _ZH
t _ZL
t _HZ
t _LZ
t_s(H)
t_s(L)
t_h(H)
t_h(L)
t_W(H)
t_W(L)
C_IN
C_O
3.0
8.0
3.0
8.0
3.0
9.0
3.0
9.0
3.0
8.0
3.0
8.0
2.0
—
2.0
—
2.0
—
2.0
—
6.0
—
6.0
—
3.0 (Typ) —
15.0 (Typ)
Ta = –40 to 85°C
V_CC = 5.0 V ±10%
Min
Max
3.0
10.0
3.0
10.0
3.0
11.0
3.0
11.0
3.0
10.0
3.0
10.0
2.0
—
2.0
—
2.0
—
2.0
—
6.0
—
6.0
—
—
—
Unit Test conditions
ns See under figure
ns
ns
ns
ns
ns
pF V_IN = V_CC or GND
pF V_O = V_CC or GND
Test Circuit
V_CC
Input
Pulse Generator
Zout = 50 Ω
Input
Pulse Generator
Zout = 50 Ω
VCC
Output
OC
1Q to 8Q
1D to 8D
CL =
50 pF
500 Ω
450 Ω
50 Ω Scope
CK
Notes:
1. C_L includes probe and jig capacitance.
2. OPEN: t_PLH, t_PHL, t_ZH, t_HZ,t_h, t_s t_w
7 V: t_ZL, t_LZ
*2
OPEN
7V
6