Datasheet

Page 56
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5. Electrical Characteristics (M32C/85)
VCC1=VCC2=5V
lobmySretemaraP
tnemerusaeM
noitidnoC
dradnatS
tinU
.niM.xaM
dt
)DA-KLCB( emiTyaleDtuptuOsserddA 81sn
ht
)DA-KLCB( )dradnatsKLCB(emiTdloHtuptuOsserddA 3-sn
ht
)DA-DR( )dradnatsDR(emiTdloHtuptuOsserddA
)3(
0sn
ht
)DA-RW( )dradnatsRW(emiTdloHtuptuOsserddA
)3(
)1etoN(sn
dt
)SC-KLCB( emiTyaleDtuptuOlangiStceleS-pihC 81sn
ht
)SC-KLCB( )dradnatsKLCB(emiTdloHtuptuOlangiStceleS-pihC 3-sn
ht
)SC-DR( )dradnatsDR(emiTdloHtuptuOlangiStceleS-pihC
)3(
0sn
ht
)SC-RW( )dradnatsRW(emiTdloHtuptuOlangiStceleS-pihC
)3(
)1etoN(sn
dt
)DR-KLCB( emiTyaleDtuptuOlangiSDR 81sn
ht
)DR-KLCB( emiTdloHtuptuOlangiSDR 5-sn
dt
)RW-KLCB( emiTyaleDtuptuOlangiSRW 81sn
ht
)RW-KLCB( emiTdloHtuptuOlangiSRW 5-sn
dt
)RW-BD( )dradnatsRW(emiTyaleDtuptuOataD )2etoN(sn
ht
)BD-RW( )dradnatsRW(emiTdloHtuptuOataD
)3(
)1etoN(sn
wt
)RW( htdiWtuptuORW )2etoN(sn
t d(DB – WR) =
f
(BCLK)
– 20
[ns]
t
h(WR – DB) =
f
(BCLK) X 2
10
9
– 10 [ns]
t
h(WR – AD) =
f
(BCLK) X 2
10
9
– 10
[ns]
t
h(WR – CS) =
f
(BCLK) X 2
10
9
– 10 [ns]
t
w(WR) =
f
(BCLK) X 2
10 X n
9
– 15 [ns]
1. Values can be obtained from the following equations, according to BCLK frequency.
2. Values can be obtained from the following equations, according to BCLK frequency and external bus cycles.
(if external bus cycle is aφ + bφ, n=(bx2)-1)
10 X m
9
(if external bus cycle is aφ + bφ, m= b)
NOTES:
3. tc ns is added when recovery cycle is inserted.
See Figure 5.2
Switching Characteristics
(VCC1 = VCC2 = 4.2 to 5.5V, VSS = 0V at Topr = –20 to 85
o
C unless otherwise specified)
Table 5.22 Memory Expansion Mode and Microprocessor Mode
(when accessing external memory space)