HD404669 Datasheet, PDF (136/142 Pages) Hitachi Semiconductor – Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit

HD404669 Series
Serial Interface Timing Characteristics (HD404668, HD4046612, HD404669, HD40A4668,
HD40A46612, HD40A4669: V_CC = 1.8 to 5.5 V, GND = 0 V, T_a = –20°C to +75°C; HCD404669: V_CC =
1.8 to 5.5 V, GND = 0 V, T_a = +75°C; HD407A4669: V_CC = 2.2 to 5.5 V, GND = 0 V, T_a = –20°C to
+75°C, unless otherwise specified)
During Transmit Clock Output
Item
Symbol Pin Min Typ Max Unit Test Condition
Transmit clock cycle time
t_Scyc
SCK₁ 1.0
—
—
t_cyc
Load shown in
figure 96
Transmit clock high width t_SCKH
SCK₁ 0.4
—
—
t_Scyc Load shown in
figure 96
Transmit clock low width
t_SCKL
SCK₁ 0.4
—
—
t_Scyc Load shown in
figure 96
Transmit clock rise time
t_SCKr
SCK₁ —
—
100 ns
Load shown in
figure 96
Transmit clock fall time
t_SCKf
SCK₁ —
—
100 ns
Load shown in
figure 96
Serial output data
delay time
t_DSO
SO₁ —
—
300 ns
Load shown in
figure 96
Serial input data
setup time
t_SSI
SI₁
200 —
—
ns
—
Serial input data
t_HSI
hold time
Note: 1. Refer to figure 95.
SI₁
200 —
—
ns
—
Notes
1
1
1
1
1
1
1
1
During Transmit Clock Input
Item
Symbol Pin Min Typ Max Unit Test Condition
Transmit clock cycle time
Transmit clock high width
Transmit clock low width
Transmit clock rise time
Transmit clock fall time
Serial output data
delay time
t_Scyc
t_SCKH
t_SCKL
t_SCKr
t_SCKf
t_DSO
SCK₁ 1.0
—
SCK₁ 0.4
—
SCK₁ 0.4
—
SCK₁ —
—
SCK₁ —
—
SO₁ —
—
—
t_cyc
—
—
tScyc
—
—
t_Scyc
—
100 ns
—
100 ns
—
300 ns
Load shown in
figure 96
Serial input data
setup time
t_SSI
SI₁
200 —
—
ns
—
Serial input data
t_HSI
hold time
Note: 1. Refer to figure 95.
SI ₁
200 —
—
ns
—
Notes
1
1
1
1
1
1
1
1
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