Datasheet

17
Burn-In Circuits
MD82C54 (CERDIP) MR82C54 (CLCC)
NOTES:
1. V
CC
= 5.5V ± 0.5V
2. GND = 0V
3. VIH = 4.5V ±10%
4. VIL = -0.2V to 0.4V
5. R1 = 47kΩ ±5%
6. R2 = 1.0kΩ ±5%
7. R3 = 2.7kΩ ±5%
8. R4 = 1.8kΩ ±5%
9. R5 = 1.2kΩ ±5%
10. C1 = 0.01µF Min
11. F0 = 100kHz ±10%
12. F1 = F0/2, F2 = F1/2, ...F12 = F11/2
FIGURE 20. CLOCK AND GATE
Timing Waveforms (Continued)
WR
CLK
GATE
OUT
MODE
COUNT
(SEE NOTE)
(17)
tPWH
(18)
tPWL
(16)
tCLK
tGS
(21)
tGW
(27)
tWO
tGS
(23)
tGH
(24)
tGL
tODG (26)
tF (20)
tOD (25)
tGH (24)
NOTE: LAST BYTE OF COUNT BEING WRITTEN
(19)
tR
(22)
(23)
tCL (30)
tWC (28)
R1
R1
R1
R1
R1
R1
R1
R1
R2
R1
R1
R1
R1
R1
R2
R1
R1
R2
R1
VCC
GND
Q5
Q4
A
F1
Q7
A
Q3
F2
Q8
Q2
VCC
GND
F9
F11
F0
A
Q6
GND
Q1
F10
F12
V
CC
A
1
2
3
4
5
6
7
8
9
10
11
12
16
17
18
19
20
21
22
23
24
15
14
13
V
CC
C1
R4
R3
23
24
25
22
21
20
19
11
3 2 14
14 15 16 17 1812 13
28 27 26
10
5
6
7
8
9
VCC/2Q6 GND
OPEN
VCC/2 F1Q7
R1
R1
R1
R1
R2
R5
GND
Q5
Q4
Q8
OPEN
F2
VCC/2
R1
R1
R1
R1
R1
R2
F9
F10
F11
OPEN
GND
F12
F0
R5 R1 R5 R1 R2
R1R1R1R1R1
VCC Q2 Q1 OPEN
C1
Q3 VCC
VCC
82C54