Intel 8253 - Page 679

4-19
Burn-In Circuits
MD82C59A CERDIP
MR82C59A CLCC
R1
R1
R1
R1
R1
R1
R1
R1
R1
R1
R1
R3
R3
V
CC
R1
R2
R2
R2
R2
R2
R2
R3
R3
R1
R2
R2
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
C1
INTA
IR7
IR6
IR5
IR3
IR1
IR0
A
SP/EN
CAS 2
A0
IR4
IR2
WR
RD
D7
D6
D4
D2
D1
D0
CAS 0
CAS 1
GND
D5
D3
GND
V
CC
A
R3
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
CAS0 CAS1
GND
CAS2
SP/EN
IR0
V
CC
/2
R2
R2
R2
R2
R2
R2
R2
IR6
IR5
IR4
IR1
IR7
IR3
IR2
R1
R1
R1
R1
R1
R1
R1
D5
D4
D3
D0
D6
D2
D1
R1 R1 R1 R1 R4 R2
R1 R1 R1R1 R1 R1
D7 RD WR GND A0 INTA
V
CC
C1
NOTES:
1. V
CC
= 5.5V ±0.5V.
2. V
IH
= 4.5V ±10%.
3. V
IL
= -0.2V to 0.4V.
4. GND = 0V.
5. R1 = 47kΩ±5%.
6. R2 = 510Ω±5%.
7. R3 = 10kΩ±5%.
8. R4 = 1.2kΩ±5%.
9. C1 = 0.01µF min.
10. F0 = 100kHz ±10%.
11. F1 = F0/2, F2 = F1/2, ...F8 = F7/2.
82C59A