w65c22 Western Design Center, Inc., w65c22 Datasheet - Page 42

• Manufacturer Part Number: w65c22
• Description: W65c22n And W65c22s Versatile Interface Adapter Via Datasheet
• Manufacturer: Western Design Center, Inc.

Note:
See Figure 4-12 for test load
Symbol
tWHS
tR, tF
tPDH
tCA2
tRS1
tRS2
tRS3
tRS4
tSR1
tSR2
tSR3
tIPW
tICW
tICS
tIPS
tDS
t21
tAL
tIL
Parameter
Rise & Fall Time for CA1, CB1,
CA2 and CB2 Input Signals
Delay
Transition
Transition (Read Handshake or
Pulse Mode
Delay
Transition
Transition (Pulse Mode)
Delay
Transition
Transition
Mode)
Delay
Transition
Negative
Handshake)
Delay
Valid to CB2 Negative Transition
Delay
Transition to CA2 or CB2 Positive
Transition (Write Pulse Mode)
Delay Time, CA1 or CB1 Active
Transition to CA2 or CB2 Positive
Transition (Handshake Mode)
Delay Time Required from CA2
Output to CA1 Active Transition
(Write Handshake Mode)
Set-up Time, Peripheral Data
Valid to CA1 or CB1 Active
Transition (Input Latching)
Shift-Out Delay Time - Time from
PHI2 Falling Edge to CB2 Data
Out
Shift-In Set-up Time - Time from
CB2 Data in to PHI2 Rising Edge
External Shift Clock (CB1) Set-up
Time Relative to PHI2 Trailing
Edge
Pulse Width - PB6 Input Pulse
Pulse Width - CB1 Input Clock
Pulse Spacing - PB6 Input Pulse
Pulse Spacing - CB1 Input Pulse
CA1, CB1 Set Up Prior to
Transition to Arm Latch
Peripheral Data Hold after CA1,
CB1 Transition
Time,
Time,
Time,
Time,
Time,
Time,
to
to
Peripheral Interface Timing
to
to
(Read
Transition
Table 4-4a W65C22N AC
Peripheral
Clock
Clock
Clock
CA2
Clock
CA2
CA2
CA2
CA1
Handshake
or
Negative
Negative
Negative
Positive
Positive
Positive
Positive
Active
(Write
Data
CB2
tCYC
tCYC
tCYC
tCYC
Min
105
62
88
10
2x
2x
2x
2x
0
-
-
-
-
-
-
-
-
-
-
5.0+/-5%
14 MHz
tCYC
Max
100
100
150
70
75
75
75
35
88
88
-
-
-
-
-
-
-
-
Units
nS
nS
uS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
ns
nS
nS
Figure
4-11
4-10
4-11
4-10
4-3
4-4
4-3
4-4
4-5
4-6
4-5
4-6
4-5
4-6
4-6
4-7
4-8
4-9
4-9
4-7
4-7
-
42