W83977F Datasheet, PDF (164/181 Pages) Winbond – PLUG & PLAY 1.0A COMPLIANT

11.3.9 KBC Timing Parameters
W83977F/ W83977AF
PRELIMINARY
NO.
DESCRIPTION
MIN.
MAX.
UNIT
T1
Address Setup Time from WRB
0
nS
T2
Address Setup Time from RDB
0
nS
T3
WRB Strobe Width
20
nS
T4
RDB Strobe Width
20
nS
T5
Address Hold Time from WRB
0
nS
T6
Address Hold Time from RDB
0
nS
T7
Data Setup Time
50
nS
T8
Data Hold Time
0
nS
T9
Gate Delay Time from WRB
10
30
nS
T10 RDB to Drive Data Delay
40
nS
T11 RDB to Floating Data Delay
0
20
nS
T12 Data Valid After Clock Falling (SEND)
4
µS
T13 K/B Clock Period
20
µS
T14 K/B Clock Pulse Width
10
µS
T15 Data Valid Before Clock Falling (RECEIVE)
4
µS
T16 K/B ACK After Finish Receiving
20
µS
T17 RC Fast Reset Pulse Delay (8 Mhz)
2
3
µS
T18 RC Pulse Width (8 Mhz)
6
µS
T19 Transmit Timeout
2
mS
T20 Data Valid Hold Time
0
µS
T21 Input Clock Period (6−12 Mhz)
83
167
nS
T22 Duration of CLK inactive
30
50
µS
T23 Duration of CLK active
30
50
µS
T24 Time from inactive CLK transition, used to time when
5
the auxiliary device sample DATA
25
µS
T25 Time of inhibit mode
100
300
µS
T26 Time from rising edge of CLK to DATA transition
5
T28-5
µS
T27 Duration of CLK inactive
30
50
µS
T28 Duration of CLK active
30
50
µS
T29 Time from DATA transition to falling edge of CLK
5
25
µS
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Publication Release Date: March 1998
Revision 0.58