W83977EF Winbond Electronics Corp America, W83977EF Datasheet - Page 133

• Manufacturer Part Number: W83977EF
• Description: Description = W83877TF Plus Kbc, GP I/O, Wake-Up, Power Fail Resume ;; Package = QFP 128
• Manufacturer: Winbond Electronics Corp America

11.3.9 KBC Timing Parameters
11.3.10 GPIO Timing Parameters
NO.
T10
T11
T12
T13
T14
T15
T16
T17
T18
T19
T20
T21
T22
T23
T24
T25
T26
T27
T28
T29
T1
T2
T3
T4
T5
T6
T7
T8
T9
Address Setup Time from WRB
Address Setup Time from RDB
WRB Strobe Width
RDB Strobe Width
Address Hold Time from WRB
Address Hold Time from RDB
Data Setup Time
Data Hold Time
Gate Delay Time from WRB
RDB to Drive Data Delay
RDB to Floating Data Delay
Data Valid After Clock Falling (SEND)
K/B Clock Period
K/B Clock Pulse Width
Data Valid Before Clock Falling (RECEIVE)
K/B ACK After Finish Receiving
RC Fast Reset Pulse Delay (8 Mhz)
RC Pulse Width (8 Mhz)
Transmit Timeout
Data Valid Hold Time
Input Clock Period (6 − 12 Mhz)
Duration of CLK inactive
Duration of CLK active
Time from inactive CLK transition, used to time when
the auxiliary device sample DATA
Time of inhibit mode
Time from rising edge of CLK to DATA transition
Duration of CLK inactive
Duration of CLK active
Time from DATA transition to falling edge of CLK
DESCRIPTION
-127 -
Publication Release Date: April 2003
MIN.
100
20
20
50
10
20
10
20
83
30
30
30
30
0
0
0
0
0
0
4
2
6
0
5
5
5
T28-5
MAX.
W83977EF
167
300
30
40
20
50
50
25
50
50
25
4
3
2
Revision 1.1
UNIT
mS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
µ S
µ S
µ S
µ S
µ S
µ S
µ S
µ S
nS
µ S
µ S
µ S
µ S
µ S
µ S
µ S
µ S