Renesas M16C/6NK Hardware Manual page 335

Under development
This document is under development and its contents are subject to change.
M16C/6N Group (M16C/6NK, M16C/6NM)
Switching Characteristics
(Referenced to VCC = 3.3V, VSS = 0 V, at Topr = –40 to 85 °C unless otherwise specified)
Table 22.43 Memory Expansion Mode and Microprocessor Mode (for setting with no wait)
Symbol
t
Address output delay time
d(BCLK-AD)
t
Address output hold time (refers to BCLK)
h(BCLK-AD)
t
Address output hold time (refers to RD)
h(RD-AD)
t
Address output hold time (refers to WR)
h(WR-AD)
t
Chip select output delay time
d(BCLK-CS)
t
Chip select output hold time (refers to BCLK)
h(BCLK-CS)
t
ALE signal output delay time
d(BCLK-ALE)
t
ALE signal output hold time
h(BCLK-ALE)
t
RD signal output delay time
d(BCLK-RD)
t
RD signal output hold time
h(BCLK-RD)
t
WR signal output delay time
d(BCLK-WR)
t
WR signal output hold time
h(BCLK-WR)
t
Data output delay time (refers to BCLK)
d(BCLK-DB)
t
Data output hold time (refers to BCLK)
h(BCLK-DB)
t
Data output delay time (refers to WR)
d(DB-WR)
t
Data output hold time (refers to WR)
h(WR-DB)
__________
t
HLDA output delay time
d(BCLK-HLDA)
NOTES:
1. Calculated according to the BCLK frequency as follows:
0.5 ✕ 10 9
– 10 [ns]
f(BCLK)
2. Calculated according to the BCLK frequency as follows:
0.5 ✕ 10
9
– 40 [ns]
f(BCLK)
3. This standard value shows the timing when the
output is off, and does not show hold time of
data bus.
Hold time of data bus varies with capacitor volume
and pull-up (pull-down) resistance value.
Hold time of data bus is expressed in
t = – CR ✕ ln (1 – V
by a circuit of the right figure.
For example, when V
R =1 kΩ, hold time of output "L" level is
t = – 30 pF ✕ 1 kΩ ✕ ln (1 – 0.2 V
Rev.2.00 Nov 28, 2005
REJ09B0124-0200
Parameter
f(BCLK) is 12.5 MHz or less.
/ V )
OL CC
= 0.2 V , C = 30 pF,
OL CC
/ V ) = 6.7 ns.
CC CC
page 317 of 378
22. Electric Characteristics (Normal-ver.)
Measuring
condition
Figure 22.12
(3)
(3)
NOTE:
1. P11 to P14 are only in the 128-pin version.
Figure 22.12 Port P0 to P14 Measurement Circuit
VCC = 3.3V
Standard
Min.
Max.
30
4
0
(NOTE 1)
30
4
25
–4
30
0
30
0
40
4
(NOTE 2)
(NOTE 1)
40
R
DBi
C
P0
P1
P2
30pF
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
P13
P14
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns