MITSUBISHI MICROCOMPUTERS
M37754M8C-XXXGP, M37754M8C-XXXHP
M37754S4CGP, M37754S4CHP
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
PERIPHERAL DEVICE INPUT/OUTPUT TIMING (VCC = 5 V±10 %, VCC = 0 V, Ta = –20 to 85 °C, unless otherwise noted)
If the values depends on external clock frequency f(XIN), formulas of the limits are shown below. Also, the values at f(XIN) = 40 MHz in high-
speed running and at f(XIN) = 25 MHz in low-speed running are shown in ( ). At this time, the clock source select bit is “0.” When the clock
source select bit is “1”, regard f(XIN) in tables as 2·f(XIN).
The rise and fall time of input signal must be 100 ns or less respectively, unless otherwise noted.
Timer A input (Count input in event counter mode)
Limits
Symbol
Parameter
Unit
Min.
80
Max.
tc(TA)
TAiIN input cycle time
ns
ns
ns
tw(TAH)
tw(TAL)
TAiIN input high-level pulse width
TAiIN input low-level pulse width
40
40
Timer A input (Gating input in timer mode)
Limits
Symbol
Parameter
Unit
ns
ns
ns
ns
ns
ns
Min.
16 × 109
f(XIN)
8 × 109
f(XIN)
8 × 109
f(XIN)
4 × 109
f(XIN)
8 × 109
f(XIN)
4 × 109
f(XIN)
Max.
f(XIN)
≤
40 MHz
25 MHz
40 MHz
25 MHz
40 MHz
25 MHz
(400)
tc(TA)
TAiIN input cycle time
(XIN)
f(XIN)
f(XIN)
f(XIN)
f(XIN)
≤
(320)
(200)
(160)
(200)
(160)
≤
≤
≤
≤
tw(TAH)
tw(TAL)
TAiIN input high-level pulse width
TAiIN input low-level pulse width
Note :The TAiIN input cycle time requires 4 or more cycles of count source. The TAiIN input high-level pulse width and the TAiIN input low-level pulse width
respectively require 2 or more cycles of the count source. The limits in the table are the values when the count source is f(XIN)/4 in high-speed running
(f(XIN)
≤
40 MHz) and when the count source is f(XIN)/2 in low-speed running (f(XIN)
≤
25 MHz). At this time, the clock source select bit is “0.”
Timer A input (External trigger input in one-shot pulse mode)
Symbol Parameter
Limits
Unit
ns
Min.
8 × 109
f(XIN)
4 × 109
f(XIN)
Max.
f(XIN) ≤ 40 MHz
f(XIN) ≤ 25 MHz
(200)
(160)
tc(TA)
TAiIN input cycle time
ns
tw(TAH)
tw(TAL)
TAiIN input high-level pulse width
TAiIN input low-level pulse width
ns
ns
80
80
Timer A input (External trigger input in pulse width modulation mode)
Symbol Parameter
Limits
Unit
Min.
80
Max.
Max.
tw(TAH)
tw(TAL)
TAiIN input high-level pulse width
TAiIN input low-level pulse width
ns
ns
80
Timer A input (Up-down input in event counter mode)
Symbol Parameter
Limits
Unit
Min.
2000
1000
1000
400
tc(UP)
TAiOUT input cycle time
ns
ns
ns
ns
ns
tw(UPH)
TAiOUT input high-level pulse width
TAiOUT input low-level pulse width
TAiOUT input setup time
tw(UPL)
tsu(UP-TIN)
th(TIN-UP)
TAiOUT input hold time
400
83
RENESAS [ RENESAS TECHNOLOGY CORP ]
