msm82c55a-2rs Oki Semiconductor, msm82c55a-2rs Datasheet - Page 5

• Manufacturer Part Number: msm82c55a-2rs
• Description: Cmos Programmable Peripheral Interface
• Manufacturer: Oki Semiconductor

¡ Semiconductor
AC CHARACTERISTICS
Note: Timing measured at V
Setup Time of Address to the Falling Edge of RD
Hold Time of Address to the Rising Edge of RD
RD Pulse Width
Delay Time from the Falling Edge of RD to the Output of
Defined Data
Delay Time from the Rising Edge of RD to the Floating of
Data Bus
Time from the Rising Edge of RD or WR to the Next Falling
Edge of RD or WR
Setup Time of Address before the Falling Edge of WR
Hold Time of Address after the Rising Edge of WR
WR Pulse Width
Setup Time of Bus Data before the Rising Edge of WR
Hold Time of Bus Data after the Rising Edge of WR
Delay Time from the rising Edge of WR to the Output of
Defined Data
Setup Time of Port Data before the Falling Edge of RD
Hold Time of Port Data after the Rising Edge of RD
ACK Pulse Width
STB Pulse Width
Setup Time of Port Data before the rising Edge of STB
Hold Time of Port Bus Data after the rising Edge of STB
Delay Time from the Falling Edge of ACK to the Output of
Defined Data
Delay Time from the Rising Edge of ACK to the Floating of
Port (Port A in Mode 2)
Delay Time from the Rising Edge of WR to the Falling Edge of
OBF
Delay Time from the Falling Edge of ACK to the Rising Edge of
OBF
Delay Time from the Falling Edge of STB to the Rising Edge of
IBF
Delay Time from the Rising Edge of RD to the Falling Edge of
IBF
Delay Time from the the Falling Edge of RD to the Falling Edge
of INTR
Delay Time from the Rising Edge of STB to the Rising Edge of
INTR
Delay Time from the Rising Edge of ACK to the Rising Edge of
INTR
Delay Time from the Falling Edge of WR to the Falling Edge of
INTR
Parameter
L
= 0.8 V and V
H
= 2.2 V for both inputs and outputs.
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
WOB
t
t
t
t
t
t
t
t
t
t
t
WW
t
AOB
t
WIT
AW
WA
DW
WD
WB
SIB
RIB
RIT
RR
RD
HR
SIT
AIT
AR
RA
DF
RV
AK
ST
PS
PH
AD
KD
IR
(V
MSM82C55A-2
CC
Min.
100
200
150
100
100
20
—
10
20
50
30
—
20
10
20
50
—
20
—
—
—
—
—
—
—
—
= 4.5 V to 5.5 V, Ta = –40 to +85°C)
0
0
MSM82C55A-2RS/GS/VJS
Max.
120
200
150
250
150
150
150
150
200
150
150
250
—
—
—
75
—
—
—
—
—
—
—
—
—
—
—
—
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Remarks
150 pF
Load
5/26