HD404374 Datasheet, PDF (142/161 Pages) Renesas Technology Corp – Low-Voltage AS Microcomputers with On-Chip A/D Converter

HD404374/HD404384/HD404389/HD404082/HD404084 Series
Item
Symbol Pins
min. typ. max. Unit Test conditions
Notes
INT₀, EVNB,
t_IL
INT₀, EVNB, 2
—
—
t /t _{cyc subcyc}
8
WU₀, low-level width
WU₀
RESET low-level width t_RSTL
RESET
2
—
—
t_cyc
9
RESET rise time
t_RSTr
RESET
—
—
20
ms
9
Input capacitance
C_in
All input pins —
except TEST
—
15
pF
f=1MHz,V_in=0V
TEST
—
—
15
pF
10
TEST
—
—
40
pF
11
Capacitance between C_RF
OSC₁, OSC₂ —
—
1
pF
5
OSC₁ and OSC₂
(Resistance oscillation)
Notes: 1. When the subsystem oscillator (32.768 kHz crystal oscillation) is used, use within the range
0.4 MHz≤f_OSC≤1.0 MHz or 1.6 MHz≤f_OSC≤8.5 MHz. The SSR1 bit of the system clock select
register (SSR) should be set to 0 and 1, respectively.
2. The typ. value is the value when V = 3.5 V.
CC
3. Applies to HD40A4372/4, HD40A4382/4, HD40A4388/9, HD40A4081/2, HD40A4084,
HD407A4374, HD407A4384 and HD407A4389 when V_CC = 4.0 to 5.5 V.
4. Applies to HD404374 Series.
5. Applies to HD40C4372/4, HD407C4374, HD40C4382/4, HD407C4384, HD40C4388/9,
HD407C4389, HD40C4081/2, HCD40C4082, HD40C4084, HCD40C4084.
6. The oscillation settling time is defined as follows:
(1) The time required for the oscillation to settle after V_CC has reached standard minimum at
power-on.
(2) The time required for the oscillation to settle after RESET input has gone low when stop
mode is cleared.
To ensure enough time for the oscillation to settle at power-on hold the RESET input low for at
least time t_RC. The oscillation settling time will depend on the circuit constants and stray
capacitance. The resonator should be determined in consultation with the resonator
manufacturer. With regard to the system clock (OSC₁, OSC₂), bits MIS1 and MIS0 in the
miscellaneous register (MIS) should be set according to the oscillation settling time of the
resonator used.
7. See figure 79.
8. See figure 80.
9. See figure 81.
10. Applies to Mask ROM.
11. Applies to ZTAT^TM.
12. Applies to HD40C4081/2, HCD40C4082, HD40C4084, HCD40C4084.
13. Applies to HD40C4372/4, HD407C4374, HD40C4382/4, HD407C4384, HD40C4388/9,
HD407C4389.
Rev.5.00, Sep.11.2003, page 142 of 161