MC68HC11PH8 Datasheet, PDF (239/264 Pages) Motorola, Inc – High-density Complementary Metal Oxide Semiconductor (HCMOS) Microcomputer Unit

A.5.5 Non-multiplexed expansion bus timing
(V_DD = 5.0 Vdc ± 10%, V_SS = 0 Vdc, T_A = T_L to T_H)
Num
Characteristic ⁽¹⁾
Symbol
Frequency of operation (E clock frequency)
f_OP
1 E clock period
2 Pulse width, E low ^{(2), (3)}
3 Pulse width, E high ^{(2), (3)}
t_CYC
PW_EL
PW_EH
4A E clock
4B
9 Address hold time ⁽³⁾
11 Address delay time ⁽³⁾
12 Address valid to E rise time ⁽³⁾
rise time t_r
fall time t_f
t_AH
t_AD
t_AV
17 Read data set-up time
t_DSR
18 Read data hold time
t_DHR
19 Write data delay time
21 Write data hold time ⁽³⁾
29 MPU address access time ⁽³⁾
39 Write data set-up time ⁽³⁾
t_DDW
t_DHW
t_ACCA
t_DSW
57 Address valid to data three-state time
t_AVDZ
2.0 MHz
Min. Max.
0 2.0
500 Ñ
230 Ñ
225 Ñ
Ñ 20
Ñ 20
53 Ñ
Ñ 103
127 Ñ
30 Ñ
0
Ñ
Ñ 40
63 Ñ
348 Ñ
185 Ñ
Ñ 10
3.0 MHz
Min. Max.
0 3.0
333 Ñ
147 Ñ
142 Ñ
Ñ 20
Ñ 18
32 Ñ
Ñ 82
65 Ñ
30 Ñ
0Ñ
Ñ 40
42 Ñ
203 Ñ
102 Ñ
Ñ 10
(1) All timing is given with respect to 20% and 70% of V_DD, unless otherwise noted.
(2) Input clock duty cycles other than 50% will affect the bus performance.
(3) For f_OP ≤ 2MHz the following formulae may be used to calculate parameter values:
PW_EL = t_CYC/2 Ð 20ns
PW_EH = t_CYC/2 Ð 25ns
t_AH = t_CYC/8 Ð 10ns
t_AD = t_CYC/8 + 40ns
t_AV = PW_EL Ð t_AD
t_DHW = t_CYC/8
t_ACCA = t_CYC Ð t_f Ð t_DSR Ð t_AD
t_DSW = PW_EH Ð t_DDW
4.0 MHz
Unit
Min. Max.
0 4.0 MHz
250 Ñ ns
105 Ñ ns
100 Ñ ns
Ñ
Ñ
20
15
ns
21 Ñ ns
Ñ 71 ns
34 Ñ ns
20 Ñ ns
0 Ñ ns
Ñ 40 ns
31 Ñ ns
144 Ñ ns
60 Ñ ns
Ñ 10 ns
12
MC68HC11PH8
ELECTRICAL SPECIFICATIONS (STANDARD)
TPG
MOTOROLA
A-15