HD404654 Datasheet, PDF (105/111 Pages) Hitachi Semiconductor – 4-Bit Single-Chip Microcomputer

HD404654 Series
Serial Interface Timing Characteristics (HD404652, HD404654: V_CC = 1.8 to 6.0 V, GND = 0 V, T_a =
–20 to +75°C; HD4074654: V_CC = 2.7 to 5.5 V, GND = 0 V, T_a = –20 to +75°C, unless otherwise
specified)
During Transmit Clock Output
Item
Symbol Pin (s) Min Typ Max Unit Test Condition
Transmit clock cycle t_Scyc
time
SCK₁ 1
— — t_cyc Load shown in figure 86
Transmit clock high
width
t _SCKH
SCK₁ 0.5 — — t_Scyc Load shown in figure 86
Transmit clock low
t _SCKL
SCK₁ 0.5 — — t_Scyc Load shown in figure 86
width
Transmit clock rise time t_SCKr
Transmit clock fall time t_SCKf
Serial output data delay t_DSO
time
SCK₁ —
SCK₁ —
SO₁ —
100 — ns
100 — ns
— 500 ns
Load shown in figure 86
Load shown in figure 86
Load shown in figure 86
Serial input data setup t_SSI
time
SI₁
300 — — ns
Serial input data hold t_HSI
time
SI₁
300 — — ns
Note: 1. Refer to figure 85.
Note
1
1
1
1
1
1
1
1
During Transmit Clock Input
Item
Symbol Pin (s) Min Typ Max Unit Test Condition
Transmit clock cycle t_Scyc
time
SCK₁ 1
—
—
t _cyc
Transmit clock high
width
t _SCKH
SCK₁ 0.5 —
—
t _Scyc
Transmit clock low
width
t _SCKL
SCK₁ 0.5 —
—
t _Scyc
Transmit clock rise time t_SCKr
Transmit clock fall time t_SCKf
Serial output data delay t_DSO
time
SCK₁ —
SCK₁ —
SO₁ —
100 — ns
100 — ns
— 500 ns
Load shown in figure 86
Serial input data setup t_SSI
time
SI₁
300 — — ns
Serial input data hold t_HSI
time
SI₁
300 — — ns
Note: 1. Refer to figure 85.
Note
1
1
1
1
1
1
1
1
103