HD404459 Datasheet, PDF (117/122 Pages) Renesas Technology Corp – 4-bit HMCS400-series microcomputers

HD404459 Series
Serial Interface Timing Characteristics
HD404458, HD404459: V_CC = 1.8 to 3.6 V, GND = 0 V, T_a = –20 to +75°C, f_OSC = 0.4 to 4.0 MHz
HD4074459: V_CC = 2.2 to 2.7 V, GND = 0 V, T_a = –5 to +60°C, f_OSC = 0.4 to 2.0 MHz;
V_CC = 2.7 to 3.6 V, GND = 0 V, T_a = –20 to +75°C, f_OSC = 0.4 to 4.0 MHz, unless otherwise specified.
During Transmit Clock Output
Item
Symbol Pin
Transmit clock cycle t_Scyc
time
SCK
Transmit clock high
width
t _SCKH
SCK
Transmit clock low
t _SCKL
SCK
width
Transmit clock rise time t_SCKr
Transmit clock fall time t_SCKf
Serial output data delay t_DSO
time
SCK
SCK
SO
Serial input data setup t_SSI
SI
time
Serial input data hold t_HSI
SI
time
Note: 1. Refer to figure 92.
Min Typ Max Unit Test Condition
1.0 — — t_cyc Load shown in figure 93
0.4 — — t_Scyc Load shown in figure 93
0.4 — — t_Scyc Load shown in figure 93
— — 200 ns Load shown in figure 93
— — 200 ns Load shown in figure 93
— — 500 ns Load shown in figure 93
300 — — ns —
300 — — ns —
Note
1
1
1
1
1
1
1
1
During Transmit Clock Input
Item
Symbol Pin
Transmit clock cycle t_Scyc
time
SCK
Transmit clock high
width
t _SCKH
SCK
Transmit clock low
t _SCKL
SCK
width
Transmit clock rise time t_SCKr
Transmit clock fall time t_SCKf
Serial output data delay t_DSO
time
SCK
SCK
SO
Serial input data setup t_SSI
SI
time
Serial input data hold t_HSI
SI
time
Note: 1. Refer to figure 92.
Min Typ Max Unit Test Condition
1.0 —
—
t _cyc
—
0.4 —
—
t_Scyc —
0.4 —
—
t_Scyc —
— — 200 ns —
— — 200 ns —
— — 500 ns Load shown in figure 93
300 — — ns —
300 — — ns —
Note
1
1
1
1
1
1
1
1
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