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HS-80C86RH 查看數據表(PDF) - Intersil

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HS-80C86RH Datasheet PDF : 29 Pages
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Waveforms (Continued)
CLK
TCLAV
QS0, QS1
S2, S1, S0 (EXCEPT HALT)
TCLAV
BHE/S7, A19/S6-A16/S3
TSVLH
TCLLH
ALE (82C88 OUTPUT)
NOTE 55
RDY
(HS-82C85RH INPUT)
HS-80C86RH
T1
TCLCL
TCHCL
T2
TCH1CH2
TCHSV
TCLDV
TCLAX
BHE, A19-A16
TCHLL
TR1VCL
TCLR1X
TRYLCL
T3
T4
TCL2CL1 TW
TCLCH
TCLSH
(SEE NOTE 58)
TCLAV
S7-S3
READY (HS-80C86RH INPUT)
TCLAX
TRYHSH
TRYHCH
TCHRYX
READ CYCLE
TCLAV
AD15-AD0
RD
DT/R
TCHDTL
AD15-AD0
TAZRL
TCLAZ
TDVCL
TCLDX1
DATA IN
TCLRH
TRHAV
TCLRL
TRLRH
TCHDTH
82C88
OUTPUTS
SEE NOTES
55, 56
MRDC OR IORC
TCLML
TCVNV
TCLMH
DEN
TCVNX
NOTES:
FIGURE 3. BUS TIMING - MAXIMUM MODE SYSTEM
51. All signals switch between VOH and VOL unless otherwise specified.
52. RDY is sampled near the end of T2, T3, TW to determine if TW machines states are to be inserted.
53. Cascade address is valid between first and second INTA cycle.
54. Two INTA cycles run back-to-back. The HS-80C86RH local ADDR/DATA bus is inactive during both INTA cycles. Control for pointer address is
shown for the second INTA cycle.
55. Signals at HS-82C85RH or 82C88 are shown for reference only.
56. The issuance of the 82C88 command and control signals (MRDC, MWTC, AMWC, IORC, IOWC, AIOWC, INTA and DEN) lags the active high
82C88 CEN.
57. All timing measurements are made at 1.5V unless otherwise noted.
58. Status inactive in state just prior to T4.
13

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