HS1-82C55ARH-8 Intersil, HS1-82C55ARH-8 Datasheet - Page 4

• Manufacturer Part Number: HS1-82C55ARH-8
• Manufacturer: Intersil

Specifications of HS1-82C55ARH-8

• Operating Temperature (max): 125C
• Mounting: Through Hole
• Lead Free Status / RoHS Status: Compliant

Waveforms
NOTE: Any sequence where WR occurs before ACK and STB
occurs before RD is permissible.
CS, A1, A0
INPUT FROM
PERIPHERAL
PERIPHERAL
D7 - D0
INPUT
RD
INTR
INTR
OBF
ACK
BUS
STB
STB
WR
IBF
IBF
RD
RD
DATA FROM PERI-
PHERAL TO
HS-82C55ARH
FIGURE 3. MODE 1 (STROBED INPUT)
FIGURE 5. MODE 2 (BIDIRECTIONAL)
TWHOL
TSLIH
FIGURE 1. MODE 0 (BASIC INPUT)
TPVRL
TSLIH
TPVSH
TSHNH
TAVRL
DATA FROM CPU
TO HS-82C55ARH
TSLSH
TSHPX
TPVSH
TKLPV
TSLSH
4
DATA FROM
HS-82C55ARH
TO PERIPHERAL
TKLOH
TRLDV
TRLRH
TRLNL
TSHPX
TKLKH
TRHAX
TRHIL
TRHIL
DATA FROM
HS-82C55ARH
TO CPU
TRHDZ
TKHPX
TRHPX
HS-82C55ARH
A0 - A1, CS
CS, A1, A0
OUTPUT
DATA BUS
A0 - A1, CS
OUTPUT
DATA BUS
D7 - D0
INTR
OBF
ACK
WR
WR
RD
WR
FIGURE 4. MODE 1 (STROBED OUTPUT)
TWLNL
FIGURE 2. MODE 0 (BASIC OUTPUT)
HIGH IMPEDANCE
TWHPV
FIGURE 6. WRITE TIMING
FIGURE 7. READ TIMING
TAVWL
TAVRL
TAVRL
TAVWL
TWLWH
TDVWH
TRLRH
TWLWH
TWHOL
VALID
TDVWH
TKLKH
TKLOH
HIGH IMPEDANCE
TWHPV
TRHDX
TRHAX
TKHNH
TWHAX
TWHAX
TWHDX
TWHDX