MC74VHCT574A Datasheet, PDF (4/6 Pages) ON Semiconductor – Octal D-Type Flip-Flop with 3-State Output

MC74VHCT574A
CP
1.5V
tW
1/fmax
tPLH
tPHL
Q
1.5V
Figure 1.
SWITCHING WAVEFORMS
3V
OE
1.5V
GND
tPZL tPLZ
Q
1.5V
VOH
tPZH tPHZ
VOL
Q
1.5V
Figure 2.
3V
GND
HIGH
IMPEDANCE
VOL +0.3V
VOH –0.3V
HIGH
IMPEDANCE
VALID
3V
D
1.5V
GND
tsu
th
3V
CP
1.5V
GND
Figure 3.
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
CL*
* Includes all probe and jig capacitance
Figure 4.
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
1 kΩ
CL*
CONNECT TO VCC WHEN
TESTING tPLZ AND tPZL.
CONNECT TO GND WHEN
TESTING tPHZ AND tPZH.
D0 ²
D1 ³
D2 ⁴
D3 ⁵
D4 ⁶
D5 ⁷
D6 ⁸
D7 ⁹
EXPANDED LOGIC DIAGRAM
C
Q
D
C
Q
D
C
Q
D
C
Q
D
C
Q
D
C
Q
D
C
Q
D
C
Q
D
19 _Q0
18 _Q1
17 _Q2
16 _Q3
15 _Q4
14 _Q5
13 _Q6
12 _Q7
CP ¹¹
OE ¹
* Includes all probe and jig capacitance
Figure 5. Test Circuit
MOTOROLA
4
VHC Data – Advanced CMOS Logic
DL203 — Rev 1