HD4043312 Ver la hoja de datos (PDF) - Hitachi -> Renesas Electronics
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HD4043312 Datasheet PDF : 78 Pages
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HD404339 Series
AC Characteristics (VCC = 4.0 to 5.5 V, GND = 0 V, Vdisp = VCC – 40 V to VCC, Ta = –20 to +75°C)
Item
Symbol Pins
Min Typ Max Unit Test Condition Note
Clock oscillation frequency fOSC
OSC1,
OSC2
0.4 4
4.5 MHz System clock
1
divided by 4
X1, X2
— 32.768 — kHz
Instruction cycle time
t cyc
t subcyc
0.89 1
10 µs
— 244.14 — µs
1
32-kHz oscillator,
1/8 system clock
division ratio
— 122.07 — µs 32-kHz oscillator,
1/4 system clock
division ratio
Oscillation stabilization time tRC
OSC1,
——
7.5 ms
2
(ceramic oscillator)
OSC2
Oscillation stabilization time tRC
OSC1,
——
40 ms
2
(crystal oscillator)
OSC2
X1, X2
——
2s
2
External clock high width tCPH
OSC1
92 —
— ns
3
External clock low width
t CPL
OSC1
92 —
— ns
3
External clock rise time
t CPr
OSC1
——
20 ns
3
External clock fall time
t CPf
OSC1
——
20 ns
3
INT0, INT1, EVNB high
t IH
INT0, INT1, 2
—
—
t cyc /
4
widths
EVNB
t subcyc
INT0, INT1, EVNB low widths tIL
INT0, INT1, 2
—
—
t cyc /
4
EVNB
t subcyc
RESET low width
t RSTL
RESET
2
—
—
t cyc
5
STOPC low width
t STPL
STOPC
1
—
—
t RC
6
RESET rise time
t RSTr
RESET
——
20 ms
5
STOPC rise time
t STPr
STOPC — —
20 ms
6
Input capacitance
Cin
All input — —
30 pF f = 1 MHz,
pins except
TEST
Vin = 0 V
TEST
——
30 pF f = 1 MHz,
7
Vin = 0 V
——
180 pF
8
Notes: 1. When using the subsystem oscillator (32.768 kHz), one of the following relationships for fOSC
must be applied.
0.4 MHz ≤ fOSC ≤ 1.0 MHz or 1.6 MHz ≤ fOSC ≤ 4.5 MHz
The operating range for fOSC can be set with bit 1 of system selection register 1 (SSR1: $027).
2. The oscillation stabilization time is the period required for the oscillator to stabilize in the
following situations:
72
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