SH7108 Datasheet, PDF (536/560 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

Section 20 Electrical Characteristics
CK
t_TCKS
t_TCKS
TCLKA to
TCLKD
t_TCKWL
t_TCKWH
Figure 20.14 MTU Clock Input Timing
20.3.6 I/O Port Timing
Table 20.8 shows the I/O port timing.
Table 20.8 I/O Port Timing
Conditions: V_CC = 4.0 V to 5.5 V, AV_CC = 4.0 V to 5.5 V, V_SS = PLLV_SS = AV_SS = 0 V, T_a = –20°C
to +75°C (standard product*), T_a = –40°C to +85°C (wide temperature-range
product*)
Item
Symbol
Min.
Max.
Unit
Figure
Port output data delay time
t
PWD
—
100
ns
Figure 20.15
Port input hold time
t_PRH
19
—
ns
Port input setup time
t_PRS
[Operating precautions]
19
—
ns
The port input signals are asynchronous. They are, however, considered to have been
changed at CK clock falling edge with two-state intervals shown in figure 20.15. If the setup
times shown here are not observed, recognition may be delayed until the clock falling two
states after that timing.
Note: * For details on correspondence of the standard product, wide temperature-range product,
and product model name, refer to description of maximum operating frequency and
operating temperature range in section 1.1, Features.
CK
Port
(read)
Port
(write)
t_PRS
t_PRH
t_PWD
Figure 20.15 I/O Port Input/Output Timing
Rev.1.00 Sep. 18, 2008 Page 502 of 522
REJ09B0069-0100