82C54 Datasheet, PDF (16/17 Pages) Intel Corporation – CHMOS PROGRAMMABLE INTERVAL TIMER

Burn-In Circuits
82C54
Q1
Q2
VCC
GND
F9
F10
F11
F12
F0
A
Q6
GND
MD 82C54 CERDIP
R1
1
R1
2
R1
3
R1
4
R1
5
R1
6
R1
7
R1
8
R2
9
10
R1
11
12
V_CC
C1
24
R1
23
R1
22
R1
21
R1
20
R1
19
R2
18
Q3
VCC
GND
Q5
Q4
F2
17
R1
16
R2
15
R1
14
A
A
Q8
F1
Q7
13
A
V_CC
R3
R4
R1
GND
R1
F9
R1
F10
R1
F11
R1
F12
R2
F0
OPEN
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%
MR 82C54 CLCC
VCC
C1
VCC Q2 Q1 OPEN
R1 R1 R1
Q3 VCC
R1 R1
4 3 2 1 28 27 26
5
25
6
24
7
23
8
22
9
21
10
20
11
19
12 13 14 15 16 17 18
R5 R1
R5 R1 R2
VCC/2 Q6 GND VCC/2 Q7 F1
OPEN
OPEN
R1
GND
R1
Q5
R1
Q4
R2
F2
R5
VCC/2
R1
Q8
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
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