w83c43 Winbond Electronics Corp America, w83c43 Datasheet - Page 13

• Manufacturer Part Number: w83c43
• Description: Keyboard Controller
• Manufacturer: Winbond Electronics Corp America

AC Timing, continued
NO.
T10
T11
T12
T13
T14
T15
T16
T17
T18
T19
T20
T21
T22
T23
T24
T25
T26
T27
T28
T29
T30
T31
T32
T33
T34
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
X1/X2 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
Mode detect signal after P10 goes high
High pulse of mode detect signal
Low pulse of mode detect signal
Mode detect signal after RESET goes high
Time out of AT mode‘ s mode detect signal
DESCRIPTION
- 13 -
Publication Release Date: January 1996
MIN.
100
Typical 1 mS
Typical 220 S
Typical 220 S
Typical 1 mS
Typical 64 mS
20
10
20
83
30
30
30
30
0
4
2
6
0
5
5
5
T28-5
MAX.
167
300
40
20
50
50
25
50
50
25
4
3
2
W83C43
Revision A2
UNIT
mS
nS
nS
nS
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S