MD82C59A/B Intersil, MD82C59A/B Datasheet - Page 20

• Manufacturer Part Number: MD82C59A/B
• Description: Interrupt Controller 5V 28-Pin CDIP
• Manufacturer: Intersil

Specifications of MD82C59A/B

• Package: 28CDIP
• Interrupt Mask Option: Yes
• Interrupt Out Delay: 300(Max) ns
• Operating Supply Voltage: 5 V

Timing Waveforms
NOTES:
Burn-In Circuits
1. Interrupt Request (IR) must remain HIGH until leading edge of first INTA.
2. During first INTA the Data Bus is not active in 80C86/88/286 mode.
3. 80C86/88/286 mode.
4. 8080/8085 mode.
CAS 0 - 2
(Continued)
INTA
20
INT
DB
IR
TJLJH
(9)
CAS 0
CAS 1
SEE NOTE 1
GND
GND
WR
RD
D7
D6
D5
D4
D3
D2
D1
D0
FIGURE 15. INTA SEQUENCE
R1
R1
R1
R1
R1
R1
R1
R1
R1
R1
R1
R3
R3
TJHIH
(16)
10
11
12
13
14
1
2
3
4
5
6
7
8
9
MD82C59A CERDIP
TIALCV
TCVIAL
(17)
82C59A
82C59A
NOTE 2
SEE
(10)
TCVDV
(21)
28
27
26
25
24
23
22
21
20
19
18
17
16
15
R1
R1
R2
R2
R2
R2
R2
R2
R2
R2
R3
R3
SEE NOTE 3
(10)
TCVIAL
A0
INTA
IR7
IR6
IR5
IR4
IR3
IR2
IR1
IR0
A
SP/EN
CAS 2
SEE NOTE 4
A
C1
V
CC
V
CC
R3
R3
March 17, 2006
FN2784.5