Filter
Top Products
Rev.2.00 Nov 28, 2005 page 309 of 378
REJ09B0124-0200
M16C/6N Group (M16C/6NK, M16C/6NM) 22. Electric Characteristics (Normal-ver.)
Under development
This document is under development and its contents are subject to change.
Figure 22.8 Timing Diagram (5)
Read timing
Write timing
BCLK
CSi
ALE
DBi
ADi
BHE
WR, WRL
WRH
Memory Expansion Mode and Microprocessor Mode
(For 2-wait setting and external area access)
BCLK
CSi
ALE
DBi
ADi
BHE
RD
tcyc
t
d(BCLK-CS)
25ns.max
t
d(BCLK-AD)
25ns.max
t
d(BCLK-ALE)
25ns.max
t
h(BCLK-ALE)
-4ns.min
t
d(BCLK-RD)
25ns.max
Hi-Z
t
SU(DB-RD)
40ns.min
t
h(RD-DB)
0ns.min
t
h(BCLK-RD)
0ns.min
t
h(RD-AD)
0ns.min
t
h(BCLK-AD)
4ns.min
t
h(BCLK-CS)
4ns.min
tcyc
Hi-Z
t
d(BCLK-CS)
25ns.max
t
d(BCLK-AD)
25ns.max
t
d(BCLK-ALE)
25ns.max
t
h(BCLK-ALE)
-4ns.min
t
d(BCLK-WR)
25ns.max
t
h(BCLK-CS)
4ns.min
t
h(BCLK-AD)
4ns.min
t
h(WR-AD)
(0.5 ✕ tcyc-10)ns.min
t
h(BCLK-WR)
0ns.min
t
d(BCLK-DB)
40ns.max
t
d(DB-WR)
(1.5 ✕ tcyc-40)ns.min
t
h(BCLK-DB)
4ns.min
t
h(WR-DB)
(0.5 ✕ tcyc-10)ns.min
t
ac2(RD-DB)
(2.5 ✕ tcyc-45)ns.max
tcyc =
1
f(BCLK)
Measuring conditions :
VCC = 5 V
Input timing voltage : V
IL
= 0.8 V, V
IH
= 2.0 V
Output timing voltage : V
OL
= 0.4 V, V
OH
= 2.4 V
VCC = 5V